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Khurana S, Yadav P, Natesan P, Hassan MS, Pradhan DK, Sapra S. Prevention of ion migration in lead halide perovskites upon plugging the anion vacancies with PbSe islands. Chem Commun (Camb) 2024; 60:6031-6034. [PMID: 38775062 DOI: 10.1039/d4cc01280a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
To circumvent the issue of halide ion exchange in perovskites, we have decorated CsPbBr3 and CsPbI3 nanocrystals with different sized PbSe nanoparticles and demonstrated that it effectively prevents anion exchange reaction in CsPbBr3/CsPbI3 nanoheterostructures (NHSs) as a consequence of halide vacancy passivation by the more covalent selenide anion.
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Affiliation(s)
- Swati Khurana
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Priyesh Yadav
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Priyadharsini Natesan
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Md Samim Hassan
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Deepak Kumar Pradhan
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
| | - Sameer Sapra
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
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2
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Liu H, He M, Zhang S. Energy Transfer-Dominated Quasi-2D Blue Perovskite Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38652581 DOI: 10.1021/acsami.4c01309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
The bromide-chloride mixed quasi-two-dimensional (2D) perovskite, with a natural quantum well structure and tunable exciton binding energy, has gained significant attention for high-performance blue perovskite light-emitting diodes (PeLEDs). However, the relative importance of having a low trap state density or efficient exciton transfer for high-efficiency electroluminescence (EL) performance remains elusive. Here, two molecules with the benzoic acid group, sodium 4-fluorobenzoate (SFB) and 3,5-dibromobenzoic acid (DBA), are used to modulate the phase distribution and trap state to explore the effect between energy transfer and defect passivation. As a result, when the n = 1 phase is inhibited in both films, the DBA@SFB-modified perovskite films achieve a higher photoluminescence quantum yield (PLQY) than the SFB-modified perovskite films due to effective defect passivation. However, DBA@SFB-modified PeLEDs exhibit lower external quantum efficiency (EQE) compared to SFB-modified PeLEDs due to the poor exciton transfer between the low-dimensional phase. This demonstrates that passivation strategies may enhance photoluminescence through reducing nonradiative recombination, but the effect of phase distribution is pivotal for EL performance by efficient energy transfer in quasi-2D perovskites. Femtosecond time-resolved transient absorption measurements confirm the fastest carrier dynamics in SFB-modified perovskite films, further corroborating the above result. This work provides useful information about phase modulation and defect passivation for high-efficiency blue quasi-2D PeLEDs.
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Affiliation(s)
- Hongxin Liu
- College of Physics, Sichuan University, Chengdu 610065, Sichuan, China
| | - Min He
- Chongqing Key Laboratory of Micro&Nano Structure Optoelectronics, School of Physical Science and Technology, Southwest University, Chongqing 400715, China
| | - Sijie Zhang
- College of Physics, Sichuan University, Chengdu 610065, Sichuan, China
- Guizhou University of Engineering Science, Bijie 551700, Guizhou, China
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3
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Ghasemi M, Wei Q, Lu J, Yang Y, Hou J, Jia B, Wen X. Can thick metal-halide perovskite single crystals have narrower optical bandgaps with near-infrared absorption? Phys Chem Chem Phys 2024; 26:9137-9148. [PMID: 38456202 DOI: 10.1039/d4cp00034j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Metal-halide perovskite (MHP) single crystals are emerging as potential competitors to their polycrystalline thin-film counterparts. These materials have shown the specific feature of extended absorbance towards the near-infrared (NIR) region, which promises further extension of their applications in the field of photovoltaics and photodetectors. This notable expansion of absorbance has been explained by the narrower effective optical bandgap of MHP single crystals promoted by their large thickness over several micrometres to millimetres. Herein, the attributes of the material's thickness and the measurement technique used to estimate these characteristics are discussed to elucidate the actual origins of the extended absorbance of MHP single crystals. Contrary to the general belief of the narrower bandgap of the MHP single crystals, we demonstrate that the extended NIR absorption in the MHP single crystals mainly originates from the combination of unique below-bandgap absorption of MHPs, the thickness of single crystals, and the technical limitation of the spectrophotometer, with the key attributes of (i) significantly large thickness of the MHP single crystals by suppressing the transmitted light and (ii) the detector's limited dynamic range. Combining the theoretical and experimental characterizations, we clarify the significant role of the large thickness together with the limited sensitivity of the detector in promoting the well-known red shift of the absorption onset of the MHP single crystals. The observations evidently show that in some special circumstances, the acquired absorption spectrum cannot reliably represent the optical bandgap of MHP materials. This highlights some misinterpretations in the estimation of the narrower optical bandgap of the MHP single crystals from conventional optical methods, while the optical bandgap is an inherent property independent of the thickness. The proposed broad applications of the MHP single crystals are dictated by their fascinating properties, and therefore, a deep insight into these features should be considered besides device applications, because much of their property-function relationships are still ambiguous and a subject of debate.
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Affiliation(s)
- Mehri Ghasemi
- School of Science, RMIT University, Melbourne 3000, Australia.
| | - Qianwen Wei
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Junlin Lu
- School of Science, RMIT University, Melbourne 3000, Australia.
| | - Yu Yang
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, China
| | - Jingwei Hou
- School of Chemical Engineering, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Baohua Jia
- School of Science, RMIT University, Melbourne 3000, Australia.
| | - Xiaoming Wen
- School of Science, RMIT University, Melbourne 3000, Australia.
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4
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Ren Z, Guo B, Liu S, Lian Y, Wang Y, Xing S, Yang Y, Zhang G, Tang W, Gao Y, Wang Z, Hong J, Yu M, Zhang S, Lan D, Zou C, Zhao B, Di D. Bright and Stable Red Perovskite LEDs under High Current Densities. ACS APPLIED MATERIALS & INTERFACES 2024; 16:9012-9019. [PMID: 38331712 DOI: 10.1021/acsami.3c16922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Perovskite LEDs (PeLEDs) have emerged as a next-generation light-emitting technology. Recent breakthroughs were made in achieving highly stable near-infrared and green PeLEDs. However, the operational lifetimes (T50) of visible PeLEDs under high current densities (>10 mA cm-2) remain unsatisfactory (normally <100 h), limiting the possibilities in solid-state lighting and AR/VR applications. This problem becomes more pronounced for mixed-halide (e.g., red and blue) perovskite emitters in which critical challenges such as halide segregation and spectral instability are present. Here, we demonstrate bright and stable red PeLEDs based on mixed-halide perovskites, showing measured T50 lifetimes of up to ∼357 h at currents of ≥25 mA cm-2, a record for the operational stability of visible PeLEDs under high current densities. The devices produce intense and stable emission with a maximum luminance of 28,870 cd m-2 (radiance: 1584 W sr-1 m-2), which is record-high for red PeLEDs. Key to this demonstration is the introduction of sulfonamide, a dipolar molecular stabilizer that effectively interacts with the ionic species in the perovskite emitters. It suppresses halide segregation and migration into the charge-transport layers, resulting in enhanced stability and brightness of the mixed-halide PeLEDs. These results represent a substantial step toward bright and stable PeLEDs for emerging applications.
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Affiliation(s)
- Zhixiang Ren
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Bingbing Guo
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Shengnan Liu
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Yaxiao Lian
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Yaxin Wang
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Shiyu Xing
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Yichen Yang
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Gan Zhang
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Weidong Tang
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Yuxiang Gao
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Zixiang Wang
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Jiawei Hong
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Minhui Yu
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Shiyuan Zhang
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Dongchen Lan
- College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chen Zou
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Baodan Zhao
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
| | - Dawei Di
- State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310027, China
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5
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Zheng C, Zheng F. Carrier Transport in 2D Hybrid Organic-Inorganic Perovskites: The Role of Spacer Molecules. J Phys Chem Lett 2024; 15:1254-1263. [PMID: 38277685 DOI: 10.1021/acs.jpclett.3c03357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
Two-dimensional organic-inorganic hybrid perovskites (2D HOIPs) have been widely used for various optoelectronics applications owing to their excellent photoelectric properties. However, the selection of organic spacer cations is mostly qualitative without quantitative guidance. Meanwhile, the fundamental mechanism of the carrier transport across the organic spacer layer is still unclear. Here, by using the first-principles nonadiabatic molecular dynamics (NAMD) method, we have studied the transport process of excited carriers between 2D HOIPs separated by a spacer cation layer in real time at atomic levels. We find that the excited electrons and holes can transfer from single-inorganic-layer 2D HOIP to bi-inorganic-layer 2D HOIP on a subpicosecond to picosecond scale. Moreover, we have developed a new method to capture the electron-hole interaction in the frame of NAMD. This work provides a promising direction to design new materials toward high-performance optoelectronics.
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Affiliation(s)
- Caihong Zheng
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Fan Zheng
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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6
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Zhang K, Su Z, Shen Y, Cao LX, Zeng XY, Feng SC, Yu Y, Gao X, Tang JX, Li Y. Top-Down Exfoliation Process Constructing 2D/3D Heterojunction toward Ultrapure Blue Perovskite Light-Emitting Diodes. ACS NANO 2024; 18:4570-4578. [PMID: 38277481 DOI: 10.1021/acsnano.3c12433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
3D perovskites with low energy disorder and high ambipolar charge mobility represent a promising solution for efficient and bright light-emitting diodes. However, the challenges of regulating the nanocrystal size to trigger the quantum confinement effect and control the surface trap states to reduce charge loss hinder the applications of 3D perovskites in blue perovskite light-emitting diodes (PeLEDs). In this study, we present a top-down exfoliation method to obtain blue 3D perovskite films with clipped nanocrystals and tunable bandgaps by employing methyl cyanide (MeCN) for post-treatment. In this method, the MeCN solvent exfoliates the surface components of the 3D perovskite grains through a partial dissolution process. Moreover, the dissolved precursor can be further utilized to construct an ingenious 2D/3D heterostructure by incorporating an organic spacer into the MeCN solvent, contributing to efficient defect passivation and improved energy transfer. Consequently, efficient PeLEDs featuring ultrapure blue emission at 478 nm achieve a record external quantum efficiency of 12.3% among their 3D counterparts. This work emphasizes the significance of inducing the quantum confinement effect in 3D perovskites for efficient blue PeLEDs and provides a viable scheme for the in situ regulation of perovskite crystals.
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Affiliation(s)
- Kai Zhang
- Macao Institute of Materials Science and Engineering (MIMSE), Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa 999078, Macao, People's Republic of China
| | - Zhenhuang Su
- Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Chinese Academy of Sciences, Shanghai 200241, People's Republic ofChina
| | - Yang Shen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, People's Republic ofChina
| | - Long-Xue Cao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, People's Republic ofChina
| | - Xin-Yi Zeng
- Macao Institute of Materials Science and Engineering (MIMSE), Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa 999078, Macao, People's Republic of China
| | - Shi-Chi Feng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, People's Republic ofChina
| | - Yi Yu
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, People's Republic ofChina
| | - Xingyu Gao
- Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Chinese Academy of Sciences, Shanghai 200241, People's Republic ofChina
| | - Jian-Xin Tang
- Macao Institute of Materials Science and Engineering (MIMSE), Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa 999078, Macao, People's Republic of China
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, People's Republic ofChina
| | - Yanqing Li
- School of Physics and Electronic Science, East China Normal University, Shanghai 200241, People's Republic ofChina
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7
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Dudipala KR, Le TH, Nie W, Hoye RLZ. Halide Perovskites and Their Derivatives for Efficient, High-Resolution Direct Radiation Detection: Design Strategies and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2304523. [PMID: 37726105 DOI: 10.1002/adma.202304523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 09/03/2023] [Indexed: 09/21/2023]
Abstract
The past decade has witnessed a rapid rise in the performance of optoelectronic devices based on lead-halide perovskites (LHPs). The large mobility-lifetime products and defect tolerance of these materials, essential for optoelectronics, also make them well-suited for radiation detectors, especially given the heavy elements present, which is essential for strong X-ray and γ-ray attenuation. Over the past decade, LHP thick films, wafers, and single crystals have given rise to direct radiation detectors that have outperformed incumbent technologies in terms of sensitivity (reported values up to 3.5 × 106 µC Gyair -1 cm-2 ), limit of detection (directly measured values down to 1.5 nGyair s-1 ), along with competitive energy and imaging resolution at room temperature. At the same time, lead-free perovskite-inspired materials (e.g., methylammonium bismuth iodide), which have underperformed in solar cells, have recently matched and, in some areas (e.g., in polarization stability), surpassed the performance of LHP detectors. These advances open up opportunities to achieve devices for safer medical imaging, as well as more effective non-invasive analysis for security, nuclear safety, or product inspection applications. Herein, the principles behind the rapid rises in performance of LHP and perovskite-inspired material detectors, and how their properties and performance link with critical applications in non-invasive diagnostics are discussed. The key strategies to engineer the performance of these materials, and the important challenges to overcome to commercialize these new technologies are also discussed.
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Affiliation(s)
| | - Thanh-Hai Le
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Wanyi Nie
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Robert L Z Hoye
- Inorganic Chemistry Laboratory, University of Oxford, Oxford, OX1 3QR, UK
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8
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Athapaththu DV, Kordesch ME, Chen J. Monitoring Phase Separation and Dark Recovery in Mixed Halide Perovskite Clusters and Single Crystals Using In Situ Spectromicroscopy. J Phys Chem Lett 2024; 15:1105-1111. [PMID: 38262449 PMCID: PMC10877542 DOI: 10.1021/acs.jpclett.3c03280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Mixed halide perovskites (MHPs) are a group of semiconducting materials with promising applications in optoelectronics and photovoltaics, whose bandgap can be altered by adjusting the halide composition. However, the current challenge is to stabilize the light-induced halide separation, which undermines the device's performance. Herein we track down the phase separation dynamics of CsPbBr1.2I1.8 MHP single cubic nanocrystals (NCs) and clusters as a function of time by in situ fluorescence spectromicroscopy. The particles were sorted into groups 1 and 2 using initial photoluminescence intensities. The phase separation followed by recovery kinetics under dark and photo blinking analysis suggests that group 1 behaved more like single NCs and group 2 behaved like clusters. Under the 0.64 W/cm2 laser illumination, the phase shifts for single NCs are 3.4 ± 1.9 nm. The phase shifts are linearly correlated with the initial photoluminescence intensities of clusters, suggesting possible interparticle halide transportation.
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Affiliation(s)
- Deepani V. Athapaththu
- Department of Chemistry and Biochemistry, Ohio University, Athens, OH 45701, USA
- Nanoscale & Quantum Phenomena Institute, Ohio University, Athens, OH 45701, USA
| | - Martin E. Kordesch
- Department of Physics and Astronomy, Ohio University, Athens, OH 45701, USA
- Nanoscale & Quantum Phenomena Institute, Ohio University, Athens, OH 45701, USA
| | - Jixin Chen
- Department of Chemistry and Biochemistry, Ohio University, Athens, OH 45701, USA
- Nanoscale & Quantum Phenomena Institute, Ohio University, Athens, OH 45701, USA
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9
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He Z, Peng C, Guo R, Chen B, Li X, Zhu X, Zhang J, Liang W, Wang L. High-Efficiency and Emission-Tunable Inorganic Blue Perovskite Light-Emitting Diodes Based on Vacuum Deposition. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305379. [PMID: 37658512 DOI: 10.1002/smll.202305379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/31/2023] [Indexed: 09/03/2023]
Abstract
The fabrication of perovskite light-emitting diodes (PeLEDs) with vacuum deposition shows great potential and commercial value in realizing large-area display panel manufacturing. However, the electroluminescence (EL) performance of vacuum-deposited PeLEDs still lags behind the counterparts fabricated by solution process, especially in the field of blue PeLEDs. Here, the fabrication of high-quality CsPbBr3- x Clx film through tri-source co-evaporation is reported to achieve high photoluminescence quantum yield (PLQY). Compared with the conventional traditional dual-source co-evaporation, the tri-source co-evaporation method allows for freely adjustable elemental ratios, enabling the introduction of the lattice-matched Cs4 Pb(Br/Cl)6 phase with the quantum-limited effect into the inorganic CsPb(Br/Cl)3 emitter. By adjusting the phase distribution, the surface defects of the emitter can be effectively reduced, leading to better blue emission and film quality. Further, the effects of Cs/Pb ratio and Br/Cl ratio on the PLQY and carrier recombination dynamics of perovskite films are investigated. By optimizing the deposition rate of each precursor source, spectrally stable blue PeLEDs are achieved with tunable emission ranging from 468 to 488 nm. Particularly, the PeLEDs with an EL peak at 488 nm show an external quantum efficiency (EQE) of 4.56%, which is the highest EQE value for mixed-halide PeLEDs fabricated by vacuum deposition.
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Affiliation(s)
- Zhiyuan He
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Chencheng Peng
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Runda Guo
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Ben Chen
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Xin Li
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Xiangyu Zhu
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Jian Zhang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Wenxi Liang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Lei Wang
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
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10
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Zhou Y, van Laar SCW, Meggiolaro D, Gregori L, Martani S, Heng JY, Datta K, Jiménez-López J, Wang F, Wong EL, Poli I, Treglia A, Cortecchia D, Prato M, Kobera L, Gao F, Zhao N, Janssen RAJ, De Angelis F, Petrozza A. How Photogenerated I 2 Induces I-Rich Phase Formation in Lead Mixed Halide Perovskites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2305567. [PMID: 37722700 DOI: 10.1002/adma.202305567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/27/2023] [Indexed: 09/20/2023]
Abstract
Bandgap tunability of lead mixed halide perovskites (LMHPs) is a crucial characteristic for versatile optoelectronic applications. Nevertheless, LMHPs show the formation of iodide-rich (I-rich) phase under illumination, which destabilizes the semiconductor bandgap and impedes their exploitation. Here, it is shown that how I2 , photogenerated upon charge carrier trapping at iodine interstitials in LMHPs, can promote the formation of I-rich phase. I2 can react with bromide (Br- ) in the perovskite to form a trihalide ion I2 Br- (Iδ- -Iδ+ -Brδ- ), whose negatively charged iodide (Iδ- ) can further exchange with another lattice Br- to form the I-rich phase. Importantly, it is observed that the effectiveness of the process is dependent on the overall stability of the crystalline perovskite structure. Therefore, the bandgap instability in LMHPs is governed by two factors, i.e., the density of native defects leading to I2 production and the Br- binding strength within the crystalline unit. Eventually, this study provides rules for the design of chemical composition in LMHPs to reach their full potential for optoelectronic devices.
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Affiliation(s)
- Yang Zhou
- Center for Nano Science and Technology@Polimi, Istituto Italiano di Tecnologia, via Rubattino 81, Milano, 20134, Italy
| | - Simone C W van Laar
- Molecular Materials and Nanosystems, Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - Daniele Meggiolaro
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "'Giulio Natta"' (CNR-SCITEC), Via Elce di Sotto 8, Perugia, 06123, Italy
| | - Luca Gregori
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "'Giulio Natta"' (CNR-SCITEC), Via Elce di Sotto 8, Perugia, 06123, Italy
- Department of Chemistry, Biology and Biotechnology, University of Perugia and INSTM, Via Elce di Sotto 8, Perugia, 06123, Italy
| | - Samuele Martani
- Center for Nano Science and Technology@Polimi, Istituto Italiano di Tecnologia, via Rubattino 81, Milano, 20134, Italy
| | - Jia-Yong Heng
- Electronic Engineering Department, The Chinese University of Hong Kong, Shatin, NT, 999077, Hong Kong
| | - Kunal Datta
- Molecular Materials and Nanosystems, Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - Jesús Jiménez-López
- Center for Nano Science and Technology@Polimi, Istituto Italiano di Tecnologia, via Rubattino 81, Milano, 20134, Italy
| | - Feng Wang
- Department of Physics, Chemistry and Biology, Linköping University, Linköping, SE-581 83, Sweden
| | - E Laine Wong
- Center for Nano Science and Technology@Polimi, Istituto Italiano di Tecnologia, via Rubattino 81, Milano, 20134, Italy
| | - Isabella Poli
- Center for Nano Science and Technology@Polimi, Istituto Italiano di Tecnologia, via Rubattino 81, Milano, 20134, Italy
| | - Antonella Treglia
- Center for Nano Science and Technology@Polimi, Istituto Italiano di Tecnologia, via Rubattino 81, Milano, 20134, Italy
| | - Daniele Cortecchia
- Center for Nano Science and Technology@Polimi, Istituto Italiano di Tecnologia, via Rubattino 81, Milano, 20134, Italy
| | - Mirko Prato
- Materials Characterization Facility, Istituto Italiano di Tecnologia, Via Morego, Genova, 16163, Italy
| | - Libor Kobera
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, Prague 6, 162 06, Czech Republic
| | - Feng Gao
- Department of Physics, Chemistry and Biology, Linköping University, Linköping, SE-581 83, Sweden
| | - Ni Zhao
- Electronic Engineering Department, The Chinese University of Hong Kong, Shatin, NT, 999077, Hong Kong
| | - René A J Janssen
- Molecular Materials and Nanosystems, Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, Eindhoven, 5600 MB, The Netherlands
| | - Filippo De Angelis
- Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), Istituto CNR di Scienze e Tecnologie Chimiche "'Giulio Natta"' (CNR-SCITEC), Via Elce di Sotto 8, Perugia, 06123, Italy
- Department of Chemistry, Biology and Biotechnology, University of Perugia and INSTM, Via Elce di Sotto 8, Perugia, 06123, Italy
- SKKU Institute of Energy Science and Technology (SIEST) Sungkyunkwan University, Suwon, 440-746, South Korea
| | - Annamaria Petrozza
- Center for Nano Science and Technology@Polimi, Istituto Italiano di Tecnologia, via Rubattino 81, Milano, 20134, Italy
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11
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Guan J, Zheng Y, Cheng P, Han W, Han X, Wang P, Xin M, Shi R, Xu J, Bu XH. Free Halogen Substitution of Chiral Hybrid Metal Halides for Activating the Linear and Nonlinear Chiroptical Properties. J Am Chem Soc 2023. [PMID: 38039190 DOI: 10.1021/jacs.3c09395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Abstract
Halogen substitution has been proven as an effective approach to the band gap engineering and optoelectronic modulation of organic-inorganic hybrid metal halide (OIHMH) materials. Various high-performance mixed halide OIHMH film materials have been primarily obtained through the substitution of coordinated halogens in their inorganic octahedra. Herein, we propose a new strategy of substitution of free halogen outside the inorganic octahedra for constructing mixed halide OIHMH single crystals with chiral structures, resulting in a boost of their linear and nonlinear chiroptical properties. The substitution from DMA4[InCl6]Cl (DMA = dimethylammonium) to DMA4[InCl6]Br crystals through a facile antisolvent vaporization method produces centimeter-scale single crystals with high thermal stability along with high quantum yield photoluminescence, conspicuous circularly polarized luminescence, and greatly enhanced second harmonic generation (SHG). In particular, the obtained DMA4[InCl6]Br single crystal features an intrinsic chiral structure, exhibiting a significant SHG circular dichroism (SHG-CD) response with a highest reported anisotropy factor (gSHG-CD) of 1.56 among chiral OIHMH materials. The enhancements in both linear and nonlinear chiroptical properties are directly attributed to the modulation of octahedral distortion. The mixed halide OIHMH single crystals obtained by free halogen substitution confine the introduced halogens within free halogen sites of the lattice, thereby ensuring the stability of compositions and properties. The successful employment of such a free halogen substitution approach may broaden the horizon of the regulation of structures and the optoelectronic properties of the OIHMH materials.
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Affiliation(s)
- Junjie Guan
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Yongshen Zheng
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Puxin Cheng
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Wenqing Han
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Xiao Han
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Peihan Wang
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Mingyang Xin
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Rongchao Shi
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Jialiang Xu
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
| | - Xian-He Bu
- School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Frontiers Science Center for New Organic Matter, Nankai University, Tongyan Road 38, 300350 Tianjin, P. R. China
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12
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Roth AN, Chen Y, Santhiran A, Opare-Addo J, Gi E, Smith EA, Rossini AJ, Vela J. Designing complex Pb 3SBr xI 4-x chalcohalides: tunable emission semiconductors through halide-mixing. Chem Sci 2023; 14:12331-12338. [PMID: 37969605 PMCID: PMC10631247 DOI: 10.1039/d3sc02733c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 10/12/2023] [Indexed: 11/17/2023] Open
Abstract
Chalcohalides are desirable semiconducting materials due to their enhanced light-absorbing efficiency and stability compared to lead halide perovskites. However, unlike perovskites, tuning the optical properties of chalcohalides by mixing different halide ions into their structure remains to be explored. Here, we present an effective strategy for halide-alloying Pb3SBrxI4-x (1 ≤ x ≤ 3) using a solution-phase approach and study the effect of halide-mixing on structural and optical properties. We employ a combination of X-ray diffraction, electron microscopy, and solid-state NMR spectroscopy to probe the chemical structure of the chalcohalides and determine mixed-halide incorporation. The absorption onsets of the chalcohalides blue-shift to higher energies as bromide replaces iodide within the structure. The photoluminescence maxima of these materials mimics this trend at both the ensemble and single particle fluorescence levels, as observed by solution-phase and single particle fluorescence microscopy, respectively. These materials exhibit superior stability against moisture compared to traditional lead halide perovskites, and IR spectroscopy reveals that the chalcohalide surfaces are terminated by both amine and carboxylate ligands. Electronic structure calculations support the experimental band gap widening and volume reduction with increased bromide incorporation, and provide useful insight into the likely atomic coloring patterns of the different mixed-halide compositions. Ultimately, this study expands the range of tunability that is achievable with chalcohalides, which we anticipate will improve the suitability of these semiconducting materials for light absorbing and emission applications.
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Affiliation(s)
- Alison N Roth
- US DOE Ames National Laboratory Ames Iowa 50010 USA
- Department of Chemistry, Iowa State University Ames Iowa 50011 USA
| | - Yunhua Chen
- US DOE Ames National Laboratory Ames Iowa 50010 USA
- Department of Chemistry, Iowa State University Ames Iowa 50011 USA
| | - Anuluxan Santhiran
- US DOE Ames National Laboratory Ames Iowa 50010 USA
- Department of Chemistry, Iowa State University Ames Iowa 50011 USA
| | - Jemima Opare-Addo
- US DOE Ames National Laboratory Ames Iowa 50010 USA
- Department of Chemistry, Iowa State University Ames Iowa 50011 USA
| | - Eunbyeol Gi
- US DOE Ames National Laboratory Ames Iowa 50010 USA
- Department of Chemistry, Iowa State University Ames Iowa 50011 USA
| | - Emily A Smith
- US DOE Ames National Laboratory Ames Iowa 50010 USA
- Department of Chemistry, Iowa State University Ames Iowa 50011 USA
| | - Aaron J Rossini
- US DOE Ames National Laboratory Ames Iowa 50010 USA
- Department of Chemistry, Iowa State University Ames Iowa 50011 USA
| | - Javier Vela
- US DOE Ames National Laboratory Ames Iowa 50010 USA
- Department of Chemistry, Iowa State University Ames Iowa 50011 USA
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13
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Ghasemi M, Li X, Tang C, Li Q, Lu J, Du A, Lee J, Appadoo D, Tizei LHG, Pham ST, Wang L, Collins SM, Hou J, Jia B, Wen X. Effective Suppressing Phase Segregation of Mixed-Halide Perovskite by Glassy Metal-Organic Frameworks. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2304236. [PMID: 37616513 DOI: 10.1002/smll.202304236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/13/2023] [Indexed: 08/26/2023]
Abstract
Lead mixed-halide perovskites offer tunable bandgaps for optoelectronic applications, but illumination-induced phase segregation can quickly lead to changes in their crystal structure, bandgaps, and optoelectronic properties, especially for the Br-I mixed system because CsPbI3 tends to form a non-perovskite phase under ambient conditions. These behaviors can impact their performance in practical applications. By embedding such mixed-halide perovskites in a glassy metal-organic framework, a family of stable nanocomposites with tunable emission is created. Combining cathodoluminescence with elemental mapping under a transmission electron microscope, this research identifies a direct relationship between the halide composition and emission energy at the nanoscale. The composite effectively inhibits halide ion migration, and consequently, phase segregation even under high-energy illumination. The detailed mechanism, studied using a combination of spectroscopic characterizations and theoretical modeling, shows that the interfacial binding, instead of the nanoconfinement effect, is the main contributor to the inhibition of phase segregation. These findings pave the way to suppress the phase segregation in mixed-halide perovskites toward stable and high-performance optoelectronics.
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Affiliation(s)
- Mehri Ghasemi
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Xuemei Li
- School of Chemical Engineering, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Cheng Tang
- School of Chemistry and Physics, Centre for Materials Science, Queensland University of Technology, 2 George St, Brisbane City, QLD, 4001, Australia
| | - Qi Li
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Junlin Lu
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Aijun Du
- School of Chemistry and Physics, Centre for Materials Science, Queensland University of Technology, 2 George St, Brisbane City, QLD, 4001, Australia
| | - Jaeho Lee
- School of Chemical Engineering, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Dominique Appadoo
- Australian Synchrotron, 800 Blackburn Rd, Clayton, VIC, 3168, Australia
| | - Luiz H G Tizei
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405, Orsay, France
| | - Sang T Pham
- Bragg Centre for Materials Research, School of Chemical and Process Engineering and School of Chemistry, University of Leeds, LS2 9JT, Leeds, UK
| | - Lianzhou Wang
- School of Chemical Engineering, The University of Queensland, St. Lucia, QLD, 4072, Australia
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Sean M Collins
- Bragg Centre for Materials Research, School of Chemical and Process Engineering and School of Chemistry, University of Leeds, LS2 9JT, Leeds, UK
| | - Jingwei Hou
- School of Chemical Engineering, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Baohua Jia
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Xiaoming Wen
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
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14
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Pokryshkin NS, Mantsevich VN, Timoshenko VY. Anti-Stokes Photoluminescence in Halide Perovskite Nanocrystals: From Understanding the Mechanism towards Application in Fully Solid-State Optical Cooling. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1833. [PMID: 37368263 DOI: 10.3390/nano13121833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 06/28/2023]
Abstract
Anti-Stokes photoluminescence (ASPL) is an up-conversion phonon-assisted process of radiative recombination of photoexcited charge carriers when the ASPL photon energy is above the excitation one. This process can be very efficient in nanocrystals (NCs) of metalorganic and inorganic semiconductors with perovskite (Pe) crystal structure. In this review, we present an analysis of the basic mechanisms of ASPL and discuss its efficiency depending on the size distribution and surface passivation of Pe-NCs as well as the optical excitation energy and temperature. When the ASPL process is sufficiently efficient, it can result in an escape of most of the optical excitation together with the phonon energy from the Pe-NCs. It can be used in optical fully solid-state cooling or optical refrigeration.
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Affiliation(s)
- Nikolay S Pokryshkin
- Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
- Phys-Bio Institute, University "MEPhI", 115409 Moscow, Russia
| | | | - Victor Y Timoshenko
- Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
- Lebedev Physical Institute, Russian Academy of Sciences, 119991 Moscow, Russia
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15
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Li H, Xiong L, Li J, Lu Y, Shen Z, Song D, Zhao S, Xu Z, Liang Z, Qiao B. Stability and Degradation in Lead Halide Perovskite Nanocrystals via Regulation of Lattice Strain. J Phys Chem Lett 2023:5481-5488. [PMID: 37290033 DOI: 10.1021/acs.jpclett.3c01099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
It is still quite challenging to achieve high-performance and stable blue perovskite materials due to their instability and degradation. The lattice strain provides an important pathway to investigate the degradation process. In this article, the lattice strain in perovskite nanocrystals was regulated by the ratio of Cs+, EA+, and Rb+ cations with different sizes. Their electrical structure, formation energy, and ion migration activation energy were calculated with the density functional theory (DFT) method. The luminescence properties and stability of blue lead bromide perovskite nanocrystals were analyzed with spectra regulation from 516 to 472 nm. It was demonstrated that the lattice strain plays an important role in the luminescence performance and degradation process of perovskite materials. The study provides the positive correlation between lattice strain and degradation as well as luminescence properties in lead halide perovskite materials, which is of great importance in uncovering their degradation mechanism and developing stable and high-performance blue perovskite materials.
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Affiliation(s)
- Huitian Li
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing 100044, China
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Liuyi Xiong
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing 100044, China
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Jinwei Li
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing 100044, China
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Yao Lu
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing 100044, China
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Zhaohui Shen
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing 100044, China
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Dandan Song
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing 100044, China
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Suling Zhao
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing 100044, China
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Zheng Xu
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing 100044, China
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Zhiqin Liang
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing 100044, China
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Bo Qiao
- Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education, Beijing 100044, China
- Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China
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16
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Chen L, Mao D, Hu Y, Dong H, Zhong Y, Xie W, Mou N, Li X, Zhang L. Stable and Ultrafast Blue Cavity-Enhanced Superfluorescence in Mixed Halide Perovskites. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2301589. [PMID: 37127890 PMCID: PMC10375166 DOI: 10.1002/advs.202301589] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Indexed: 05/03/2023]
Abstract
Cavity-enhanced superfluorescence (CESF) in quantum dot (QD) system is an ultrafast and intense lasing generated by combination of quantum coupling effect and optically stimulated amplification effect, which can provide a new idea for realizing high quality blue light sources and address the limitation of conventional inefficient blue light sources. Modifying halide composition is a straightforward method to achieve blue emission in perovskite QD system. However, the spectral instability introduced by photoinduced halide phase segregation and low coupling efficiency between QDs and optical cavities make it challenging to achieve stable blue CESF in such halide-doped QD system. Herein, long-range-ordered, densely packed CsPbBr2 Cl QD-assembled superlattice microcavities in which the two core issues can be appropriately addressed are developed. The QD superlattice structure facilitates excitonic delocalization to decrease exciton-phonon coupling, thus alleviating photoinduced phase segregation. By combination of theoretical analysis and temperature-dependent photoluminescence (PL) measurements, the underlying photoinduced phase segregation mitigation mechanism in mixed halide superlattices is clarified. Based on the CsPbBr2 Cl QD superlattices with regularly geometrical structures, in which the gain medium can be strongly coupled to the naturally formed microcavity, stable and ultrafast (3 ps) blue CESF with excellent optical performance (threshold ≈33 µJ cm-2 , quality factor ≈1900) is realized.
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Affiliation(s)
- Linqi Chen
- Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Danqun Mao
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
| | - Yingjie Hu
- Key Laboratory of Advanced Functional Materials of Nanjing, Nanjing Xiaozhuang University, Nanjing, 211171, China
| | - Hongxing Dong
- Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, No.1, Sub-Lane Xiangshan, Hangzhou, Xihu, 310024, China
- CAS Center for Excellence in Ultra-intense Laser Science, Shanghai, 201800, China
| | - Yichi Zhong
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, No.1, Sub-Lane Xiangshan, Hangzhou, Xihu, 310024, China
| | - Wei Xie
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
| | - Nanli Mou
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, No.1, Sub-Lane Xiangshan, Hangzhou, Xihu, 310024, China
| | - Xinjie Li
- Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Long Zhang
- Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, No.1, Sub-Lane Xiangshan, Hangzhou, Xihu, 310024, China
- CAS Center for Excellence in Ultra-intense Laser Science, Shanghai, 201800, China
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17
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Sibiński M. Review of Luminescence-Based Light Spectrum Modifications Methods and Materials for Photovoltaics Applications. MATERIALS (BASEL, SWITZERLAND) 2023; 16:3112. [PMID: 37109948 PMCID: PMC10144223 DOI: 10.3390/ma16083112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/07/2023] [Accepted: 04/13/2023] [Indexed: 06/19/2023]
Abstract
The dynamic development of photovoltaic and photo-sensitive electronic devices is constantly stimulated by material and technological advances. One of the key concepts that is highly recommended for the enhancement of these device parameters is the modification of the insulation spectrum. Practical implementation of this idea, although difficult, may be highly beneficial for photoconversion efficiency, photosensitivity range extension, and their cost reduction. The article presents a wide range of practical experiments leading to the manufacturing of functional photoconverting layers, dedicated to low-cost and wide-scale deposition methods. Various active agents, based on different luminescence effects as well as the possible organic carrier matrixes, substrate preparation and treatment procedures, are presented. New innovative materials, based on their quantum effects, are examined. The obtained results are discussed in terms of the application in new generation photovoltaics and other optoelectronic elements.
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Affiliation(s)
- Maciej Sibiński
- Department of Semiconductor and Optoelectronic Devices, Lodz University of Technology, al. Politechniki 10, 93-590 Lodz, Poland
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18
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Chen M, Tang Y, Qin R, Su Z, Yang F, Qin C, Yang J, Tang X, Li M, Liu H. Perylene Monoimide Phosphorus Salt Interfacial Modified Crystallization for Highly Efficient and Stable Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2023; 15:5556-5565. [PMID: 36689684 DOI: 10.1021/acsami.2c20088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Reducing the interfacial defects of perovskite films is key to improving the performance of perovskite solar cells (PSCs). In this study, two kinds of perylene monoimide (PMI) derivative phosphonium bromide salts were designed and used as a multifunctional interface-modified layer in PSCs. These two molecules are inserted between SnO2 and perovskite to produce a bidirectional passivation effect. The interaction with SnO2 reduces the oxygen vacancy on the surface of SnO2 and tunes the energy level of the electron transport layer, making more matches with the perovskite layer. The modified layer can promote the growth of perovskite crystals and reduce the interfacial defects of the perovskite film. Furthermore, the power conversion efficiency (PCE) of PSCs increased from 19.49 to 22.85%, and the open-circuit voltage (VOC) increased from 1.06 to 1.14 V. At the same time, the PCE of the SnO2/PMI-TPP-based device remained 88% of the initial PCE after 240 h of continuous illumination. In addition, these two PMI derivatives with a quasi-planar structure can improve the flexibility of flexible PSCs. This study provided a new strategy for the interfacial modification of PSCs and a new insight into the application of flexible PSCs.
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Affiliation(s)
- Mengmeng Chen
- School of Materials Science and Engineering, Henan Normal University, Xinxiang 453007, China
| | - Ying Tang
- School of Physics, Henan Normal University, Xinxiang 453007, China
| | - Ruiping Qin
- School of Materials Science and Engineering, Henan Normal University, Xinxiang 453007, China
| | - Zhenhuang Su
- Shanghai Synchrotron Radiation Facility (SSRF), Shanghai Advanced Research Institute, Shanghai Institute of Applied Physics Chinese Academy of Sciences, 239 Zhangheng Road, Shanghai 201204, China
| | - Feng Yang
- School of Physics, Henan Normal University, Xinxiang 453007, China
| | - Chaochao Qin
- School of Physics, Henan Normal University, Xinxiang 453007, China
| | - Jien Yang
- School of Materials Science and Engineering, Henan Normal University, Xinxiang 453007, China
| | - Xiaodan Tang
- School of Materials Science and Engineering, Henan Normal University, Xinxiang 453007, China
| | - Miao Li
- School of Materials Science and Engineering, Henan Normal University, Xinxiang 453007, China
| | - Hairui Liu
- School of Materials Science and Engineering, Henan Normal University, Xinxiang 453007, China
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19
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Lye YE, Chan KY, Ng ZN. A Review on the Progress, Challenges, and Performances of Tin-Based Perovskite Solar Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:585. [PMID: 36770546 PMCID: PMC9920041 DOI: 10.3390/nano13030585] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/19/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
In this twenty-first century, energy shortages have become a global issue as energy demand is growing at an astounding rate while the energy supply from fossil fuels is depleting. Thus, the urge to develop sustainable renewable energy to replace fossil fuels is significant to prevent energy shortages. Solar energy is the most promising, accessible, renewable, clean, and sustainable substitute for fossil fuels. Third-generation (3G) emerging solar cell technologies have been popular in the research field as there are many possibilities to be explored. Among the 3G solar cell technologies, perovskite solar cells (PSCs) are the most rapidly developing technology, making them suitable for generating electricity efficiently with low production costs. However, the toxicity of Pb in organic-inorganic metal halide PSCs has inherent shortcomings, which will lead to environmental contamination and public health problems. Therefore, developing a lead-free perovskite solar cell is necessary to ensure human health and a pollution-free environment. This review paper summarized numerous types of Sn-based perovskites with important achievements in experimental-based studies to date.
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Affiliation(s)
- Yuen-Ean Lye
- School of Electrical Engineering and Artificial Intelligence, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, Sepang 43900, Selangor, Malaysia
| | - Kah-Yoong Chan
- Centre for Advanced Devices and Systems, Faculty of Engineering, Multimedia University, Persiaran Multimedia, Cyberjaya 63100, Selangor, Malaysia
| | - Zi-Neng Ng
- School of Electrical Engineering and Artificial Intelligence, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, Sepang 43900, Selangor, Malaysia
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20
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de Souza Carvalho TA, Magalhaes LF, do Livramento Santos CI, de Freitas TAZ, Carvalho Vale BR, Vale da Fonseca AF, Schiavon MA. Lead-Free Metal Halide Perovskite Nanocrystals: From Fundamentals to Applications. Chemistry 2023; 29:e202202518. [PMID: 36206198 DOI: 10.1002/chem.202202518] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Indexed: 11/22/2022]
Abstract
Lead (Pb) halide perovskite nanocrystals, with the general formula APbX3 , where A=CH3 NH3+ , CH(NH2 )2+ , or Cs+ and X=Cl- , Br- , or I- , have emerged as a class of materials with promising properties due to their remarkable optical properties and solar cell performance. However, important issues still need to be addressed to enable practical applications of these materials, such as instability, mass production, and Pb toxicity. Recent studies have carried out the replacement of Pb by various less-toxic cations as Sn, Ge, Sb, and Bi. This variety of chemical compositions provide Pb-free perovskite and metal halide nanostructures with a wide spectral range, in addition to being considered less toxic, therefore having greater practical applicability. Highlighting the necessity to address and solve the toxicity problems related to Pb-containing perovskite, this review considers the prospects of the Pb-free perovskite, involving synthesis methods, and properties of them, including advantages, disadvantages, and applications.
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Affiliation(s)
- Thaís Adriany de Souza Carvalho
- Departamento de Ciências Naturais (DCNat), Universidade Federal de São João del-Rei (UFSJ), São João del-Rei, MG, 36301-160, Brasil
| | - Leticia Ferreira Magalhaes
- Departamento de Ciências Naturais (DCNat), Universidade Federal de São João del-Rei (UFSJ), São João del-Rei, MG, 36301-160, Brasil
| | | | - Thiago Alvares Zamaro de Freitas
- Departamento de Ciências Naturais (DCNat), Universidade Federal de São João del-Rei (UFSJ), São João del-Rei, MG, 36301-160, Brasil
| | - Brener Rodrigo Carvalho Vale
- Departamento de Ciências Naturais (DCNat), Universidade Federal de São João del-Rei (UFSJ), São João del-Rei, MG, 36301-160, Brasil.,Instituto de Física "Gleb Wataghin", Universidade Estadual de Campinas, Unicamp, Campinas, São Paulo, 13083-859, Brasil
| | - André Felipe Vale da Fonseca
- Departamento de Ciências Naturais (DCNat), Universidade Federal de São João del-Rei (UFSJ), São João del-Rei, MG, 36301-160, Brasil
| | - Marco Antônio Schiavon
- Departamento de Ciências Naturais (DCNat), Universidade Federal de São João del-Rei (UFSJ), São João del-Rei, MG, 36301-160, Brasil
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21
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Xiao Z, Tao T, Shu J, Pan R, Dang W, Zhao N, Pan S, Zhang W. Charge Carrier Recombination Dynamics in MAPb(Br xCl 1-x) 3 Single Crystals. J Phys Chem Lett 2023; 14:245-252. [PMID: 36594895 DOI: 10.1021/acs.jpclett.2c03606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Understanding carrier recombination processes in MAPb(BrxCl1-x)3 crystals is essential for their photoelectrical applications. In this work, carrier recombination dynamics in MAPb(BrxCl1-x)3 single crystals were studied by steady-state photoluminescence (PL), time-resolved photoluminescence (TRPL), and time-resolved microwave photoconductivity (TRMC). By comparing TRPL and TRMC, we find TRPL of MAPb(BrxCl1-x)3 (x < 0.98) single crystals is dominated by a hole trapping process while the long-lived component of TRMC is dominated by an electron trapping process. We also find both electron and hole trapping rates of MAPb(BrxCl1-x)3 (x < 0.98) crystals decrease with an increase in Br content. A temperature-dependent PL study shows there are shallow trap states besides the deep level trap states in the MAPb(Br0.82Cl0.18)3 crystal. The activation energy for holes in shallow trap states detrapped into the valence band is ∼0.1 eV, while the activation energy for free holes to be trapped into deep trap states is ∼0.4 eV. This work provides insight into carrier recombination processes in MAPb(BrxCl1-x)3 single crystals.
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Affiliation(s)
- Zijie Xiao
- School of Physics and Materials Science, Guangzhou University, Guangzhou510006, China
| | - Tingting Tao
- Hebei Key Lab of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding071002, China
| | - Jingting Shu
- Hebei Key Lab of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding071002, China
| | - Runhui Pan
- School of Physics and Materials Science, Guangzhou University, Guangzhou510006, China
| | - Wei Dang
- Hebei Key Lab of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding071002, China
| | - Ningjiu Zhao
- Songshan Lake Materials Laboratory, Dongguan523808, China
| | - Shusheng Pan
- School of Physics and Materials Science, Guangzhou University, Guangzhou510006, China
- Research Center for Advanced Information Materials (CAIM), Huangpu Research and Graduate School of Guangzhou University, Guangzhou510006, China
| | - Wei Zhang
- School of Physics and Materials Science, Guangzhou University, Guangzhou510006, China
- Research Center for Advanced Information Materials (CAIM), Huangpu Research and Graduate School of Guangzhou University, Guangzhou510006, China
- Guangzhou University-Linköping University Research Center on Urban Sustainable Development, Guangzhou University, Guangzhou510006, China
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22
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Gushchina I, Trepalin V, Zaitsev E, Ruth A, Kuno M. Excitation Intensity- and Size-Dependent Halide Photosegregation in CsPb(I 0.5Br 0.5) 3 Perovskite Nanocrystals. ACS NANO 2022; 16:21636-21644. [PMID: 36468911 DOI: 10.1021/acsnano.2c10781] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Although broad consensus exists that photoirradiation of mixed-halide lead perovskites leads to anion segregation, no model today fully rationalizes all aspects of this near ubiquitous phenomenon. Here, we quantitatively compare experimental, CsPb(I0.5Br0.5)3 nanocrystal (NC) terminal anion photosegregation stoichiometries and excitation intensity thresholds to a band gap-based, thermodynamic model of mixed-halide perovskite photosegregation. Mixed-halide NCs offer strict tests of theory given physical sizes, which dictate local photogenerated carrier densities. We observe that mixed-anion perovskite NCs exhibit significant robustness to photosegregation, with photosegregation propensity decreasing with decreasing NC size. Observed size- and excitation intensity-dependent photosegregation data agree with model predicted size- and excitation intensity-dependent terminal halide stoichiometries. Established correspondence between experiment and theory, in turn, suggests that mixed-halide perovskite photostabilities can be predicted a priori using local gradients of (empirical) Vegard's law expressions of composition-dependent band gaps.
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Affiliation(s)
- Irina Gushchina
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana46556, United States
| | - Vadim Trepalin
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana46556, United States
| | - Evgenii Zaitsev
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana46556, United States
| | - Anthony Ruth
- CubicPV, 1807 Ross Avenue, STE 333, Dallas, Texas75201, United States
| | - Masaru Kuno
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana46556, United States
- Department of Physics, University of Notre Dame, Notre Dame, Indiana46556, United States
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23
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Yu Z, Wang J, Chen B, Uddin MA, Ni Z, Yang G, Huang J. Solution-Processed Ternary Tin (II) Alloy as Hole-Transport Layer of Sn-Pb Perovskite Solar Cells for Enhanced Efficiency and Stability. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2205769. [PMID: 36177689 DOI: 10.1002/adma.202205769] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Tin-lead (Sn-Pb) narrow-bandgap (NBG) perovskites show great potential in both single-junction and all-perovskite tandem solar cells. Sn-Pb perovskite solar cells (PSCs) are still limited by low charge collection efficiency and poor stability. Here, a ternary Sn (II) alloy of SnOCl is reported as the hole-transport material (HTM) with a work function of 4.95 eV for Sn-Pb PSCs. The solution-processed SnOCl layer has a texture structure that not only reduces the optical loss of the devices, but also changes grain growth of Sn-Pb perovskites and boosts the carrier diffusion length to 3.63 µm. The formation of small perovskite grains at the HTM/perovskite interface is suppressed. These result in an almost constant internal quantum efficiency (IQE) of 96 ± 2% across the absorption spectrum of Sn-Pb perovskites. The SnOCl HTM significantly enhances the stability of Sn-Pb PSCs with 87% of its initial efficiency retained after 1-sun illumination for 1200 h, and keeps 85% efficiency under 85 °C thermal stress for 1500 h. The hybrid HTM further improves the stabilized efficiencies of single-junction Sn-Pb PSCs and all-perovskite tandem solar cells to 23.2% and 25.9%, respectively. This discovery opens an avenue to the multicomponent metal alloys as HTM in PSCs.
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Affiliation(s)
- Zhenhua Yu
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Jiantao Wang
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Bo Chen
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Md Aslam Uddin
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Zhenyi Ni
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Guang Yang
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Jinsong Huang
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC, 27599, USA
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
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24
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Ryu HJ, Shin M, Park M, Lee JS. In Situ Tetraalkylammonium Ligand Engineering of Organic-Inorganic Hybrid Perovskite Nanoparticles for Enhancing Long-Term Stability and Optical Tunability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:13448-13455. [PMID: 36288550 DOI: 10.1021/acs.langmuir.2c01888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Organic-inorganic hybrid perovskite nanoparticles (OIHP NPs) have attracted scientific attention owing to their efficient photoluminescence with optical tunability, which is highly advantageous for optoelectronic applications. However, the limited long-term stability of OIHP NPs has significantly hindered their practical application. Despite several synthetic strategies and encapsulation methods to stabilize OIHP NPs, complicated multi-step procedures are often required. In this study, we introduce an in situ ligand engineering method for stabilizing and controlling the optical properties of OIHP NPs using tetraalkylammonium (TAA) halides with various molecular structures at different concentrations. Our one-pot ligand engineering substantially enhanced the stability of the OIHP NPs without post-synthetic processes. Moreover, in certain cases, approximately 90% of the initial photoluminescence (PL) intensity was preserved even after a month under ambient conditions (room temperature, 20-50% relative humidity). To determine the role of ligand engineering in stabilizing the OIHP NPs, the surface binding properties of the TAA ligands were thoroughly analyzed using Raman spectroscopy. Specifically, the permanent positive charge of the TAA cations and consequent effective electrostatic interactions with the surfaces of the OIHP NPs are pivotal for preserving the initial PL intensity. Our investigation is beneficial for developing OIHP nanomaterials with improved stability and controlled photoluminescence for various optoelectronic applications, such as light-emitting devices, photosensitizers, photodetectors, photocatalysis, and solar cells.
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Affiliation(s)
- Han-Jung Ryu
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Mingyeong Shin
- Department of Chemistry, Dong-A University, 37 Nakdong-daero 550beon-gil, Saha-gu, Busan 49315, Republic of Korea
- Department of Chemistry, College of Natural Science, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Myeongkee Park
- Department of Chemistry, College of Natural Science, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Jae-Seung Lee
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
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25
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Dong J, Lu F, Han D, Wang J, Zang Z, Kong L, Zhang Y, Ma X, Zhou J, Ji H, Yang X, Wang N. Deep‐Blue Electroluminescence of Perovskites with Reduced Dimensionality Achieved by Manipulating Adsorption‐Energy Differences. Angew Chem Int Ed Engl 2022; 61:e202210322. [DOI: 10.1002/anie.202210322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Jianchao Dong
- Key Laboratory of Physics and Technology for Advanced Batteries of Ministry of Education College of Physics Jilin University Changchun 130012 P. R. China
| | - Feifei Lu
- Key Laboratory of Physics and Technology for Advanced Batteries of Ministry of Education College of Physics Jilin University Changchun 130012 P. R. China
| | - Dongyuan Han
- Key Laboratory of Physics and Technology for Advanced Batteries of Ministry of Education College of Physics Jilin University Changchun 130012 P. R. China
| | - Jie Wang
- Key Laboratory of Physics and Technology for Advanced Batteries of Ministry of Education College of Physics Jilin University Changchun 130012 P. R. China
| | - Ziang Zang
- Key Laboratory of Physics and Technology for Advanced Batteries of Ministry of Education College of Physics Jilin University Changchun 130012 P. R. China
| | - Lingmei Kong
- Key Laboratory of Advanced Display and System Applications of Ministry of Education Shanghai University 149 Yanchang Road Shanghai 200072 P. R. China
| | - Yu Zhang
- Key Laboratory of Physics and Technology for Advanced Batteries of Ministry of Education College of Physics Jilin University Changchun 130012 P. R. China
| | - Xue Ma
- Key Laboratory of Physics and Technology for Advanced Batteries of Ministry of Education College of Physics Jilin University Changchun 130012 P. R. China
| | - Jianheng Zhou
- Key Laboratory of Physics and Technology for Advanced Batteries of Ministry of Education College of Physics Jilin University Changchun 130012 P. R. China
| | - Huiyu Ji
- Key Laboratory of Physics and Technology for Advanced Batteries of Ministry of Education College of Physics Jilin University Changchun 130012 P. R. China
| | - Xuyong Yang
- Key Laboratory of Advanced Display and System Applications of Ministry of Education Shanghai University 149 Yanchang Road Shanghai 200072 P. R. China
| | - Ning Wang
- Key Laboratory of Physics and Technology for Advanced Batteries of Ministry of Education College of Physics Jilin University Changchun 130012 P. R. China
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26
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Bhatia H, Ghosh B, Debroye E. Colloidal FAPbBr 3 perovskite nanocrystals for light emission: what's going on? JOURNAL OF MATERIALS CHEMISTRY. C 2022; 10:13437-13461. [PMID: 36324302 PMCID: PMC9521414 DOI: 10.1039/d2tc01373h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/06/2022] [Indexed: 06/16/2023]
Abstract
Semiconducting nanomaterials have been widely explored in diverse optoelectronic applications. Colloidal lead halide perovskite nanocrystals (NCs) have recently been an excellent addition to the field of nanomaterials, promising an enticing building block in the field of light emission. In addition to the notable optoelectronic properties of perovskites, the colloidal NCs exhibit unique size-dependent optical properties due to the quantum size effect, which makes them highly attractive for light-emitting diodes (LEDs). In the past few years, perovskite-based LEDs (PeLEDs) have demonstrated a meteoritic rise in their external quantum efficiency (EQE) values, reaching over 20% so far. Among various halide perovskite compositions, FAPbBr3 and its variants remain one of the most interesting and sought-after compounds for green light emission. This review focuses on recent progress in the design and synthesis protocols of colloidal FAPbBr3 NCs and the emerging concepts in tailoring their surface chemistry. The structural and physicochemical features of lead halide perovskites along with a comprehensive discussion on their defect-tolerant properties are briefly outlined. Later, the prevalent synthesis, ligand, and compositional engineering strategies to boost the stability and photoluminescence quantum yield (PLQY) of FAPbBr3 NCs are extensively discussed. Finally, the fundamental concepts and recent progress on FAPbBr3-based LEDs, followed by a discussion of the challenges and prospects that are on the table for this enticing class of perovskites, are reviewed.
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Affiliation(s)
- Harshita Bhatia
- Department of Chemistry, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Biplab Ghosh
- cMACS, Department of Microbial and Molecular Systems, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Elke Debroye
- Department of Chemistry, KU Leuven Celestijnenlaan 200F B-3001 Leuven Belgium
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27
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Ugur E, Ledinský M, Allen TG, Holovský J, Vlk A, De Wolf S. Life on the Urbach Edge. J Phys Chem Lett 2022; 13:7702-7711. [PMID: 35960888 DOI: 10.1021/acs.jpclett.2c01812] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The Urbach energy is an expression of the static and dynamic disorder in a semiconductor and is directly accessible via optical characterization techniques. The strength of this metric is that it elegantly captures the optoelectronic performance potential of a semiconductor in a single number. For solar cells, the Urbach energy is found to be predictive of a material's minimal open-circuit-voltage deficit. Performance calculations considering the Urbach energy give more realistic power conversion efficiency limits than from classical Shockley-Queisser considerations. The Urbach energy is often also found to correlate well with the Stokes shift and (inversely) with the carrier mobility of a semiconductor. Here, we discuss key features, underlying physics, measurement techniques, and implications for device fabrication, underlining the utility of this metric.
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Affiliation(s)
- Esma Ugur
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Martin Ledinský
- Laboratory of Nanostructures and Nanomaterials, Institute of Physics, Academy of Sciences of the Czech Republic, v. v. i., Cukrovarnická 10, Prague, 162 00, Czech Republic
| | - Thomas G Allen
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Jakub Holovský
- Centre for Advanced Photovoltaics, Czech Technical University in Prague, Faculty of Electrical Engineering, Technická 2, Prague, 166 27, Czech Republic
| | - Aleš Vlk
- Laboratory of Nanostructures and Nanomaterials, Institute of Physics, Academy of Sciences of the Czech Republic, v. v. i., Cukrovarnická 10, Prague, 162 00, Czech Republic
| | - Stefaan De Wolf
- King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), Thuwal, 23955-6900, Kingdom of Saudi Arabia
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28
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Lu Z, Wang S, Li GL, Zhuo Z, Zhu H, Wang W, Huang YG, Hong M. Ultrastable Photoluminescence Enabled by 1D Rare-Earth Metal-Organic Frameworks Based on Double Thiacalix[4]arene-Capped Nodes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:37894-37903. [PMID: 35965482 DOI: 10.1021/acsami.2c07910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Luminescent stability is a vital factor that dictates the application of lanthanide luminescent materials. Designing luminescent lanthanide cluster nodes that form an extended framework with predictable linking patterns may help enhance the structural stability of the lanthanide complexes and hence lead to improved luminescent stability. Herein, we report a series of one-dimensional (1D) rare-earth metal-organic framework compounds, {Ln4(μ4-OH)(TC4A)2(H2O)2(CH3O)(HCOO)2(HCOOH)}·xCH3OH (Ln = Sm (1), Eu (2), Tb (3), Dy (4); x = 1-5), based on double thiacalix[4]arene-capped Ln4(μ4-OH)(TC4A)2 nodes. The axially capped Ln4(μ4-OH)(TC4A)2 nodes are connected equatorially by formate bridges to form zigzag 1D-metal-organic framework (MOF) chains, which further assemble into a quasi-two-dimensional (2D) structure via hydrogen bonding. These unique features result in a stable structure and therefore superior luminescent stability. For example, the Tb-based 1D-MOF (3) exhibits intensive green photoluminescence with a quantum yield of 53% and an average decay time of 1.33 × 106 ns. It maintains its integrated emission intensity at 96.5, 94.5, and 89.4% of the original value after being exposed to moisture (soaking in water for 10 days), elevated temperature (150 °C), and UV (15 days of continuous radiation), respectively, demonstrating excellent luminescent stability. We adopt the Tb-based 1D-MOF (3) as the green phosphor and successfully fabricate a prototype white-light-emitting diode (LED) with stable emission under long-term operation. Our synthetic strategy allows control over the linking pattern of lanthanide nodes, providing a predictive route to obtain lanthanide MOFs with improved luminescent stability.
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Affiliation(s)
- Zixiu Lu
- School of Rare Earth, University of Science and Technology of China, Ganzhou 341119, China
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, China
| | - Shujian Wang
- School of Rare Earth, University of Science and Technology of China, Ganzhou 341119, China
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, China
| | - Guo-Ling Li
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
| | - Zhu Zhuo
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
| | - Haomiao Zhu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
| | - Wei Wang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
| | - You-Gui Huang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
| | - Maochun Hong
- School of Rare Earth, University of Science and Technology of China, Ganzhou 341119, China
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
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29
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Muscarella L, Cordaro A, Krause G, Pal D, Grimaldi G, Antony LSD, Langhorst D, Callies A, Bläsi B, Höhn O, Koenderink AF, Polman A, Ehrler B. Nanopatterning of Perovskite Thin Films for Enhanced and Directional Light Emission. ACS APPLIED MATERIALS & INTERFACES 2022; 14:38067-38076. [PMID: 35943781 PMCID: PMC9412957 DOI: 10.1021/acsami.2c09643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
Lead-halide perovskites offer excellent properties for lighting and display applications. Nanopatterning perovskite films could enable perovskite-based devices with designer properties, increasing their performance and adding novel functionalities. We demonstrate the potential of nanopatterning for achieving light emission of a perovskite film into a specific angular range by introducing periodic sol-gel structures between the injection and emissive layer by using substrate conformal imprint lithography (SCIL). Structural and optical characterization reveals that the emission is funnelled into a well-defined angular range by optical resonances, while the emission wavelength and the structural properties of the perovskite film are preserved. The results demonstrate a flexible and scalable approach to the patterning of perovskite layers, paving the way toward perovskite LEDs with designer angular emission patterns.
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Affiliation(s)
- Loreta
A. Muscarella
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
- Department
of Chemistry, Utrecht University, Princetonlaan 8, 3584 CB Utrecht, The Netherlands
| | - Andrea Cordaro
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Georg Krause
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Debapriya Pal
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Gianluca Grimaldi
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
- Cavendish
Laboratory, Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | | | - David Langhorst
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Adrian Callies
- Fraunhofer
Institute for Solar Energy Systems ISE, Heidenhofstraße 2, 79110 Freiburg, Germany
| | - Benedikt Bläsi
- Fraunhofer
Institute for Solar Energy Systems ISE, Heidenhofstraße 2, 79110 Freiburg, Germany
| | - Oliver Höhn
- Fraunhofer
Institute for Solar Energy Systems ISE, Heidenhofstraße 2, 79110 Freiburg, Germany
| | - A. Femius Koenderink
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
- Institute
of Physics, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Albert Polman
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Bruno Ehrler
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
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30
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Dong J, Lu F, Han D, Wang J, Zang Z, Kong L, Zhang Y, Ma X, Zhou J, Ji H, Yang X, Wang N. Deep‐Blue Electroluminescence of Perovskites with Reduced Dimensionality Achieved by Manipulating Adsorption‐Energy Differences. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | | | | | | | | | | | - Xue Ma
- Jilin University Physics CHINA
| | | | | | | | - Ning Wang
- Jilin University College of physics Qianjin Street 130022 Changchun CHINA
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31
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Elmestekawy K, Wright AD, Lohmann KB, Borchert J, Johnston MB, Herz LM. Controlling Intrinsic Quantum Confinement in Formamidinium Lead Triiodide Perovskite through Cs Substitution. ACS NANO 2022; 16:9640-9650. [PMID: 35609245 PMCID: PMC9245356 DOI: 10.1021/acsnano.2c02970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
Lead halide perovskites are leading candidates for photovoltaic and light-emitting devices, owing to their excellent and widely tunable optoelectronic properties. Nanostructure control has been central to their development, allowing for improvements in efficiency and stability, and changes in electronic dimensionality. Recently, formamidinium lead triiodide (FAPbI3) has been shown to exhibit intrinsic quantum confinement effects in nominally bulk thin films, apparent through above-bandgap absorption peaks. Here, we show that such nanoscale electronic effects can be controlled through partial replacement of the FA cation with Cs. We find that Cs-cation exchange causes a weakening of quantum confinement in the perovskite, arising from changes in the bandstructure, the length scale of confinement, or the presence of δH-phase electronic barriers. We further observe photon emission from quantum-confined regions, highlighting their potential usefulness to light-emitting devices and single-photon sources. Overall, controlling this intriguing quantum phenomenon will allow for its suppression or enhancement according to need.
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Affiliation(s)
- Karim
A. Elmestekawy
- Department
of Physics, Clarendon Laboratory, University
of Oxford, Parks Road, Oxford OX1
3PU, United Kingdom
| | - Adam D. Wright
- Department
of Physics, Clarendon Laboratory, University
of Oxford, Parks Road, Oxford OX1
3PU, United Kingdom
| | - Kilian B. Lohmann
- Department
of Physics, Clarendon Laboratory, University
of Oxford, Parks Road, Oxford OX1
3PU, United Kingdom
| | - Juliane Borchert
- Department
of Physics, Clarendon Laboratory, University
of Oxford, Parks Road, Oxford OX1
3PU, United Kingdom
| | - Michael B. Johnston
- Department
of Physics, Clarendon Laboratory, University
of Oxford, Parks Road, Oxford OX1
3PU, United Kingdom
| | - Laura M. Herz
- Department
of Physics, Clarendon Laboratory, University
of Oxford, Parks Road, Oxford OX1
3PU, United Kingdom
- Institute
for Advanced Study, Technical University
of Munich, Lichtenbergstrasse
2a, D-85748 Garching, Germany
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32
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Kang C, Zhou Z, Halpert JE, Srivastava AK. Inkjet printed patterned bank structure with encapsulated perovskite colour filters for modern display. NANOSCALE 2022; 14:8060-8068. [PMID: 35608246 DOI: 10.1039/d2nr00849a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Inorganic multicolour perovskite nanocrystals (NCs) of CsPbX3 (X = Cl, Br, I) with high photoluminescence (PL) quantum yield (QY) and saturated colours are considered promising candidates for a high-performance colour conversion layer. However, integration of these materials into industrial applications still faces a significant challenge due to their tendency for aggregation and quenching of the emission during deposition and processing. In this work, we explore a new ink composition with oleylamine (OLA) and hexylphosphonic acid (HPA) ligands in combination with a liquid crystal monomer (LCM) composing a superior solution for an inkjet-printed colour conversion layer. This work provides a simple technique for preparing high-quality perovskite pixels for high-performance displays.
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Affiliation(s)
- Chengbin Kang
- State Key Laboratory of Advanced Displays and Optoelectronics Technologies and Centre for Display Research, Department of Electronics and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong SAR, China.
| | - Zhicong Zhou
- Department of Chemistry, Hong Kong University of Science and Technology, Hong Kong SAR, China.
| | - Jonathan E Halpert
- Department of Chemistry, Hong Kong University of Science and Technology, Hong Kong SAR, China.
| | - Abhishek K Srivastava
- State Key Laboratory of Advanced Displays and Optoelectronics Technologies and Centre for Display Research, Department of Electronics and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong SAR, China.
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33
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Scharf E, Krieg F, Elimelech O, Oded M, Levi A, Dirin DN, Kovalenko MV, Banin U. Ligands Mediate Anion Exchange between Colloidal Lead-Halide Perovskite Nanocrystals. NANO LETTERS 2022; 22:4340-4346. [PMID: 35605286 PMCID: PMC9185745 DOI: 10.1021/acs.nanolett.2c00611] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 05/05/2022] [Indexed: 05/31/2023]
Abstract
The soft lattice of lead-halide perovskite nanocrystals (NCs) allows tuning their optoelectronic characteristics via anion exchange by introducing halide salts to a solution of perovskite NCs. Similarly, cross-anion exchange can occur upon mixing NCs of different perovskite halides. This process, though, is detrimental for applications requiring perovskite NCs with different halides in close proximity. We study the effects of various stabilizing surface ligands on the kinetics of the cross-anion exchange reaction, comparing zwitterionic and ionic ligands. The kinetic analysis, inspired by the "cage effect" for solution reactions, showcases a mechanism where the surface capping ligands act as anion carriers that diffuse to the NC surface, forming an encounter pair enclosed by the surrounding ligands that initiates the anion exchange process. The zwitterionic ligands considerably slow down the cross-anion exchange process, and while they do not fully inhibit it, they confer improved stability alongside enhanced solubility relevant for various applications.
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Affiliation(s)
- Einav Scharf
- The
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Franziska Krieg
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, Dübendorf CH-8600, Switzerland
| | - Orian Elimelech
- The
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Meirav Oded
- The
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Adar Levi
- The
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Dmitry N. Dirin
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, Dübendorf CH-8600, Switzerland
| | - Maksym V. Kovalenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 1, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa −
Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, Dübendorf CH-8600, Switzerland
| | - Uri Banin
- The
Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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34
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Tang X, Chen M, Jiang L, Li M, Tang G, Liu H. Improvements in Efficiency and Stability of Perovskite Solar Cells Using a Cesium Chloride Additive. ACS APPLIED MATERIALS & INTERFACES 2022; 14:26866-26872. [PMID: 35658419 DOI: 10.1021/acsami.2c07425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Perovskite films with few defects play a key role in preparing high-performance perovskite solar cells (PSCs). Here, cesium chloride (CsCl) was introduced as a modulator into a perovskite precursor for manipulating the crystallization of perovskite films. By introducing CsCl, dense homogeneous perovskite films with high crystallinity, preferential orientation, and a pure black perovskite phase were prepared. In addition, the carrier lifetime of perovskite films was significantly increased because of the suppressed nonradiative recombination. Correspondingly, the power conversion efficiency (PCE) of small-area devices using CsCl regulation was increased from 20.56 to 22.86%. The 1 cm2 PSCs present a PCE of 21.53%, demonstrating their reliability for mass production. Furthermore, the device showed excellent stability maintaining 93.8% of its initial PCE after 500 h of continuous irradiation. Also, 95.3% of its PCE was kept after storage in ambient air for 2100 h. This study demonstrates that CsCl doping is a reliable way to prepare PSCs for practical applications.
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Affiliation(s)
- Xiaodan Tang
- School of Materials Science and Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Mengmeng Chen
- School of Materials Science and Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Lulu Jiang
- School of Materials Science and Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Miao Li
- School of Materials Science and Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Guanqi Tang
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong
| | - Hairui Liu
- School of Materials Science and Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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35
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Anwar H, Johnston A, Mahesh S, Singh K, Wang Z, Kuntz DA, Tamblyn I, Voznyy O, Privé GG, Sargent EH. High-Throughput Evaluation of Emission and Structure in Reduced-Dimensional Perovskites. ACS CENTRAL SCIENCE 2022; 8:571-580. [PMID: 35647281 PMCID: PMC9136976 DOI: 10.1021/acscentsci.2c00041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Indexed: 06/15/2023]
Abstract
High-throughput experimentation (HTE) seeks to accelerate the exploration of materials space by uniting robotics, combinatorial methods, and parallel processing. HTE is particularly relevant to metal halide perovskites (MHPs), a diverse class of optoelectronic materials with a large chemical space. Here we develop an HTE workflow to synthesize and characterize light-emitting MHP single crystals, allowing us to generate the first reported data set of experimentally derived photoluminescence spectra for low-dimensional MHPs. We leverage the accelerated workflow to optimize the synthesis and emission of a new MHP, methoxy-phenethylammonium lead iodide ((4-MeO-PEAI)2-PbI2). We then synthesize 16 000 MHP single crystals and measure their photoluminescence to study the effects of synthesis parameters and compositional engineering on the emission intensity of 54 distinct MHPs: we achieve an acceleration factor of more than 100 times over previously reported HTE MHP synthesis and characterization methods. Using insights derived from this analysis, we screen an existing database for new, potentially emissive MHPs. On the basis of the Tanimoto similarity of the bright available emitters, we present our top candidates for future exploration. As a proof of concept, we use one of these (3,4-difluorophenylmethanamine) to synthesize an MHP which we find has a photoluminescence quantum yield of 10%.
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Affiliation(s)
- Husna Anwar
- The
Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G4
| | - Andrew Johnston
- The
Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G4
| | - Suhas Mahesh
- The
Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G4
| | - Kamalpreet Singh
- Department
of Physical and Environmental Sciences, University of Toronto Scarborough, Scarborough, Ontario, Canada M1C 1A4
| | - Zhibo Wang
- Department
of Physical and Environmental Sciences, University of Toronto Scarborough, Scarborough, Ontario, Canada M1C 1A4
| | - Douglas A. Kuntz
- Princess
Margaret Cancer Centre, University Health
Network, Toronto, Ontario, Canada M5G 1L7
| | - Isaac Tamblyn
- Department
of Physics, University of Ottawa, Vector
Institute for Artificial Intelligence, Ottawa, Ontario, Canada K1N 6N5
| | - Oleksandr Voznyy
- Department
of Physical and Environmental Sciences, University of Toronto Scarborough, Scarborough, Ontario, Canada M1C 1A4
| | - Gilbert G. Privé
- Princess
Margaret Cancer Centre, University Health
Network, Toronto, Ontario, Canada M5G 1L7
- Department
of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada M5G 1L7
- Department
of Biochemistry, University of Toronto, Toronto, Ontario, Canada M5S 1A8
| | - Edward H. Sargent
- The
Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G4
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36
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Photoluminescence Sensing of Chloride Ions in Sea Sand Using Alcohol-Dispersed CsPbBr3@SiO2 Perovskite Nanocrystal Composites. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10050170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this study, CsPbBr3@SiO2 perovskite nanocrystal composites (CsPbBr3@SiO2 PNCCs) were synthesized by a benzyl bromide nucleophilic substitution strategy. Homogeneous halide exchange between CsPbBr3@SiO2 PNCCs and Cl− solution (aqueous phase) was applied to the determination of Cl− in sea sand samples. Fast halide exchange with Cl− in the aqueous phase without any magnetic stirring or pH regulation resulted in the blue shift of the photoluminescence (PL) wavelength and vivid PL color changes from green to blue. The results show that the PL sensing of Cl− in aqueous samples could be implemented by using the halide exchange of CsPbBr3@SiO2 PNCCs. A linear relationship between the PL wavelength shift and the Cl− concentration in the range of 0 to 3.0% was found, which was applied to the determination of Cl− concentration in sea sand samples. This method greatly simplifies the detection process and provides a new idea for further broadening PL sensing using the CsPbBr3 PNC halide.
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37
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Hu L, Zhao W, Duan W, Chen G, Fan B, Zhang X. Temperature-Dependent Optical Properties of Perovskite Quantum Dots with Mixed-A-Cations. MICROMACHINES 2022; 13:mi13030457. [PMID: 35334748 PMCID: PMC8955971 DOI: 10.3390/mi13030457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 03/07/2022] [Accepted: 03/14/2022] [Indexed: 02/03/2023]
Abstract
In this work, metal halide perovskite quantum dots (QDs) with Formamidinium (FA) and Cs mixed cations were fabricated using a solution-processed method at room temperature. By controlling Cs doping ratios in a precursor, the optical properties of mixed-cation perovskite QDs were systematically studied. With the increase in Cs ion doping, the photoluminescence (PL) spectra of perovskite QDs were blueshifted, which was mainly due to the smaller radius of Cs ions than those of FA. Temperature-dependent PL spectra were conducted on mixed-cation perovskite QDs. As the temperature gradually increased from 4 K to 300 K, PL peaks were blue shifted, and full-width at half maximum (FWHM) was widened, which was directly related to lattice thermal expansion and the carrier-photon coupling effect under temperature variation. At the same time, excess Cs ion doping had a prominent influence on optical properties at low temperatures, which was mainly due to the introduction of detrimental defects in perovskite crystals. Therefore, it is particularly important to control doping concentration in the preparation of high-quality perovskite QDs and efficient photoelectric devices.
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Affiliation(s)
- Lei Hu
- Guangdong Provincial Key Laboratory of Information Photonics Technology, Guangdong University of Technology, Guangzhou 510006, China; (L.H.); (W.D.)
| | - Weiren Zhao
- Guangdong Provincial Key Laboratory of Information Photonics Technology, Guangdong University of Technology, Guangzhou 510006, China; (L.H.); (W.D.)
- Correspondence: (W.Z.); (B.F.); (X.Z.); Tel.: +86-15602234414 (X.Z.)
| | - Weijia Duan
- Guangdong Provincial Key Laboratory of Information Photonics Technology, Guangdong University of Technology, Guangzhou 510006, China; (L.H.); (W.D.)
| | - Guojie Chen
- Guangdong-Hongkong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of Physics and Optoelectronic Engineering, Foshan University, Foshan 528225, China;
| | - Bingfeng Fan
- Guangdong-Hongkong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of Physics and Optoelectronic Engineering, Foshan University, Foshan 528225, China;
- Correspondence: (W.Z.); (B.F.); (X.Z.); Tel.: +86-15602234414 (X.Z.)
| | - Xiaoli Zhang
- Guangdong Provincial Key Laboratory of Information Photonics Technology, Guangdong University of Technology, Guangzhou 510006, China; (L.H.); (W.D.)
- Correspondence: (W.Z.); (B.F.); (X.Z.); Tel.: +86-15602234414 (X.Z.)
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38
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Xiao H, Xiong H, Li P, Jiang L, Yang A, Lin L, Kang Z, Yan Q, Qiu Y. Tunable deep-blue luminescence from ball-milled chlorine-rich Cs x(NH 4) 1-xPbCl 2Br nanocrystals by ammonium modulation. Chem Commun (Camb) 2022; 58:3827-3830. [PMID: 35234752 DOI: 10.1039/d1cc07125d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For the first time, a novel class of deep-blue (DB)-emitting Csx(NH4)1-xPbCl2Br (0.3 ≤ x ≤ 1) perovskite nanocrystals (PNCs) were prepared by a facile ligand-assisted one-step ball milling method. The resulted PNCs are characterized by high chlorine content (66.7%) and excellent color purity. Their photoluminescence position can be finely modulated from 434 nm to 447 nm, which extends notably beyond the current Rec. 2020 color standard, by the NH4+ content. Among them, Cs0.3(NH4)0.7PbCl2Br shows the highest quantum yield close to 40%. The PNCs exhibit high phase and optical stability under ambient conditions and UV light according to the NH4+ content. This work offers a new avenue to produce DB perovskites for future full-color displays and optoelectronics.
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Affiliation(s)
- Hongfei Xiao
- College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China.,Key Laboratory of Green Perovskites Application of Fujian Provincial Universities, College of Electronics and Information Science, Fujian Jiangxia University, Fuzhou 350108, China.
| | - Hao Xiong
- Key Laboratory of Green Perovskites Application of Fujian Provincial Universities, College of Electronics and Information Science, Fujian Jiangxia University, Fuzhou 350108, China.
| | - Ping Li
- Key Laboratory of Green Perovskites Application of Fujian Provincial Universities, College of Electronics and Information Science, Fujian Jiangxia University, Fuzhou 350108, China.
| | - Linqin Jiang
- Key Laboratory of Green Perovskites Application of Fujian Provincial Universities, College of Electronics and Information Science, Fujian Jiangxia University, Fuzhou 350108, China.
| | - Aijun Yang
- PV Metrology Institute, Fujian Metrology Institute, Fuzhou 350003, China
| | - Lingyan Lin
- Key Laboratory of Green Perovskites Application of Fujian Provincial Universities, College of Electronics and Information Science, Fujian Jiangxia University, Fuzhou 350108, China.
| | - Zhenjing Kang
- Key Laboratory of Green Perovskites Application of Fujian Provincial Universities, College of Electronics and Information Science, Fujian Jiangxia University, Fuzhou 350108, China.
| | - Qiong Yan
- College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China.,Key Laboratory of Green Perovskites Application of Fujian Provincial Universities, College of Electronics and Information Science, Fujian Jiangxia University, Fuzhou 350108, China.
| | - Yu Qiu
- Key Laboratory of Green Perovskites Application of Fujian Provincial Universities, College of Electronics and Information Science, Fujian Jiangxia University, Fuzhou 350108, China.
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39
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Yadav R, Roy M, Banappanavar G, Aslam M. Growth of Hybrid Perovskite Films via Single‐Source Perovskite Nanoparticle Evaporation. Chem Asian J 2022; 17:e202200087. [DOI: 10.1002/asia.202200087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Rekha Yadav
- Indian Institute of Technology Bombay Department of Physics INDIA
| | - Mrinmoy Roy
- Indian Institute of Technology Bombay Department of Physics INDIA
| | | | - M. Aslam
- Indian Institute of Technology Bombay Physics Department of PhysicsIIT Bombay Mumbai INDIA
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40
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Ruddlesden-Popper 2D perovskites of type (C 6H 9C 2H 4NH 3) 2(CH 3NH 3) n-1Pb nI 3n+1 (n = 1-4) for optoelectronic applications. Sci Rep 2022; 12:2176. [PMID: 35140250 PMCID: PMC8828857 DOI: 10.1038/s41598-022-06108-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 01/19/2022] [Indexed: 11/17/2022] Open
Abstract
Ruddlesden–Popper (RP) phase metal halide organo perovskites are being extensively studied due to their quasi-two dimensional (2D) nature which makes them an excellent material for several optoelectronic device applications such as solar cells, photo-detectors, light emitting diodes (LEDs), lasers etc. While most of reports show use of linear carbon chain based organic moiety, such as n-Butylamine, as organic spacer in RP perovskite crystal structure, here we report a new series of quasi 2D perovskites with a ring type cyclic carbon group as organic spacer forming RP perovskite of type (CH)2(MA)n−1PbnI3n+1; CH = 2-(1-Cyclohexenyl)ethylamine; MA = Methylamine). This work highlights the synthesis, structural, thermal, optical and optoelectronic characterizations for the new RP perovskite series n = 1–4. The demonstrated RP perovskite of type for n = 1–4 have shown formation of highly crystalline thin films with alternate stacking of organic and inorganic layers, where the order of PbI6 octahedron layering are controlled by n-value, and shown uniform direct bandgap tunable from 2.51 eV (n = 1) to 1.92 eV (n = 4). The PL lifetime measurements supported the fact that lifetime of charge carriers increase with n-value of RP perovskites [154 ps (n = 1) to 336 ps (n = 4)]. Thermogravimetric analysis (TGA) showed highly stable nature of reported RP perovskites with linear increase in phase transition temperatures from 257 °C (n = 1) to 270 °C (n = 4). Scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX) are used to investigate the surface morphology and elemental compositions of thin films. In addition, the photodetectors fabricated for the series using (CH)2(MA)n−1PbnI3n+1 RP perovskite as active absorbing layer and without any charge transport layers, shown sharp photocurrent response from 17 nA/cm2 for n = 1 to 70 nA/cm2 for n = 4, under zero bias and low power illumination conditions (470 nm LED, 1.5 mW/cm2). Furthermore, for lowest bandgap RP perovskite n = 4, (CH)2MA3Pb4I13 the photodetector showed maximum photocurrent density of ~ 508 nA/cm2 at 3 V under similar illumination condition, thus giving fairly large responsivity (46.65 mA/W). Our investigations show that 2-(1-Cyclohexenyl)ethylamine based RP perovskites can be potential solution processed semiconducting materials for optoelectronic applications such as photo-detectors, solar cells, LEDs, photobatteries etc.
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41
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Shen W, Yu Y, Zhang W, Chen Y, Zhang J, Yang L, Feng J, Cheng G, Liu L, Chen S. Efficient Pure Blue Light-Emitting Diodes Based on CsPbBr 3 Quantum-Confined Nanoplates. ACS APPLIED MATERIALS & INTERFACES 2022; 14:5682-5691. [PMID: 35073477 DOI: 10.1021/acsami.1c24662] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Exploitation of next-generation blue light-emitting diodes (LEDs) is the foundation of the revolution in lighting and display devices. Development of high-performance blue perovskite LEDs is still challenging. Herein, 4-aminobenzenesulfonic acid (SA) is introduced to passivate blue CsPbBr3 nanoplates (NPLs), reducing the ionic migration via a more stable Pb2+-SO3-- formation, and the trap state density of films shows a 50% reduction. The inevitable Br- vacancy defects after the multistep washing process can be suppressed by a suitable MABr treatment, which can boost the external quantum efficiency (EQE) performance. It should be noted that the coverage of NPL films is another key factor to realize reproducible pure blue electroluminescence (EL). Therefore, we proposed an alternate droplet/spin coating method to improve the coverage and thickness of NPL layer to prevent hole transport layer emission and increase the reproducibility of LED performance and spectra. Furthermore, we designed hole transport layers to decrease the hole transport barrier and improve the energy-level alignment. According to SA passivation, MABr treatment, alternate droplet/spin coating method, and device structure optimization, a CsPbBr3 NPL-based pure blue (0.138, 0.046) LED with 3.18% maximum EQE can be achieved, and the half-lifetime of EL can be enhanced 1.71 times as compared to that of the counterpart LED without SA. Both performance and stability of pure blue NPL LEDs can be greatly improved via ligand passivation, alternate droplet/spin coating method, and device structure optimization, which is a trend to promote the development of pure blue perovskite LEDs in future.
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Affiliation(s)
- Wei Shen
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Ye Yu
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Wenzhu Zhang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Yanfeng Chen
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Jianbin Zhang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Liu Yang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Jingting Feng
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Gang Cheng
- Hong Kong Quantum AI Lab Limited, Pak Shek Kok 999077, Hong Kong SAR, China
- HKU Shenzhen Institute of Research and Innovation, Shenzhen 518053, China
| | - Lihui Liu
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Shufen Chen
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210023, P. R. China
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He H, Mei S, Wen Z, Yang D, Yang B, Zhang W, Xie F, Xing G, Guo R. Recent Advances in Blue Perovskite Quantum Dots for Light-Emitting Diodes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2103527. [PMID: 34713966 DOI: 10.1002/smll.202103527] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/22/2021] [Indexed: 06/13/2023]
Abstract
Metal halide perovskite nanostructures have sparked intense research interest due to their excellent optical properties. In recent years, although the green and red perovskite light-emitting diodes (PeLEDs) have achieved a significant breakthrough with the external quantum efficiency exceeding 20%, the blue PeLEDs still suffer from inferior performance. Previous reviews about blue PeLEDs focus more on 2D/quasi-2D or 3D perovskite materials. To develop more stable and efficient blue PeLEDs, a systematic review of blue perovskite quantum dots (PQDs) is urgently demanded to clarify how PQDs evolve. In this review, the recent advances in blue PQDs involving mixed-halide, quantum-confined all-bromide, metal-doped and lead-free PQDs as well as their applications in PeLEDs are highlighted. Although several excellent PeLEDs based on these PQDs have been demonstrated, there are still many problems to be solved. A deep insight into the advantages and disadvantages of these four types of blue-emitting PQDs is provided. Then, their respective potential and issues for blue PeLEDs have been discussed. Finally, the challenges and outlook for efficient and stable blue PeLEDs based on PQDs are addressed.
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Affiliation(s)
- Haiyang He
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China
| | - Shiliang Mei
- Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau, 999078, China
| | - Zhuoqi Wen
- Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
| | - Dan Yang
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China
| | - Bobo Yang
- Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
| | - Wanlu Zhang
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China
| | - Fengxian Xie
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China
| | - Guichuan Xing
- Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau, 999078, China
| | - Ruiqian Guo
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, 200433, China
- Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai, 200433, China
- Zhongshan-Fudan Joint Innovation Center, Zhongshan, 528437, China
- Yiwu Research Institute of Fudan University, Chengbei Road, Yiwu City, Zhejiang, 322000, China
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Kim K, Shin Y, Lee C, Jeon H, Yoon SJ, Han D. Role of electrochemical reactions in the degradation of formamidinium lead halide hybrid perovskite quantum dots. Analyst 2022; 147:841-850. [DOI: 10.1039/d1an01924d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present in situ spectroelectrochemical analysis of perovskite quantum dots (PQDs) for the understanding of dynamic interactions in between photophysical properties and electrochemical reactions.
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Affiliation(s)
- Kyoungsoo Kim
- Department of Chemistry, The Catholic University of Korea, Bucheon, Gyeonggi-do 14662, Republic of Korea
| | - YeJi Shin
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk-do, 38541, Republic of Korea
| | - ChaeHyun Lee
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk-do, 38541, Republic of Korea
| | - Hyeri Jeon
- Department of Chemistry, The Catholic University of Korea, Bucheon, Gyeonggi-do 14662, Republic of Korea
| | - Seog Joon Yoon
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk-do, 38541, Republic of Korea
| | - Donghoon Han
- Department of Chemistry, The Catholic University of Korea, Bucheon, Gyeonggi-do 14662, Republic of Korea
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Shao DS, Sang L, Kong YR, Deng ZR, Luo HB, Tian ZF, Ren XM. Tunable thermotropic phase transition triggering large dielectric response and superionic conduction in lead halide perovskites. Inorg Chem Front 2022. [DOI: 10.1039/d2qi01650h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lead halide perovskites show tunable structural phase transition, accompanied by large dielectric response and superionic conduction.
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Affiliation(s)
- Dong-Sheng Shao
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Lei Sang
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Ya-Ru Kong
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Zheng-Rong Deng
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Hong-Bin Luo
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Zheng-Fang Tian
- Hubei Key Laboratory for Processing and Application of Catalytic Materials, Huanggang Normal University, Huanggang 438000, P. R. China
| | - Xiao-Ming Ren
- State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P. R. China
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Zhu X, Dai SW, Lai YL, Dou Y, Wang M, Ho JS, Chang YA, Chuang YT, Lin HW, Hu B. Packing-Shape Effects of Optical Properties in Amplified Spontaneous Emission through Dynamics of Orbit-Orbit Polarization Interaction in Hybrid Perovskite Quantum Dots Based on Self-Assembly. J Phys Chem Lett 2021; 12:11894-11901. [PMID: 34878274 DOI: 10.1021/acs.jpclett.1c02978] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This paper reports packing-shape effects of amplified spontaneous emission (ASE) through orbital polarization dynamics between light-emitting excitons by stacking perovskite (MAPbBr3) quantum dots (QDs sized between 10 nm and 14 nm) into rod-like and diamond-like aggregates. The rod-like packing shows a prolonged photoluminescence (PL) lifetime (184 ns) with 3 nm red-shifted peak (525 nm) as compared to the diamond-like packing (PL peak, 522 nm; lifetime, 19 ns). This indicates that the rod-like packing forms a stronger interaction between QDs with reduced surface-charged defects, leading to surface-to-inside property-tuning capability with an ASE. Interestingly, the ASE enabled by rod-like packing shows an orbit-orbit polarization interaction between light-emitting excitons, identified by linearly/circularly polarized pumping conditions. More importantly, the polarization dynamics is extended to the order of nanoseconds in the rod-like assembly, determined by the observation that within the ASE lifetime (2.54 ns) the rotating pumping beam polarization direction largely affects the coherent interaction between light-emitting excitons.
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Affiliation(s)
- Xixiang Zhu
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Shu-Wen Dai
- Department of Materials Science and Engineering, National Tsing Hua University, No. 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, No. 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Ying-Lin Lai
- Department of Materials Science and Engineering, National Tsing Hua University, No. 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, No. 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Yixuan Dou
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Miaosheng Wang
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Jian-Syun Ho
- Department of Materials Science and Engineering, National Tsing Hua University, No. 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, No. 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Yi-An Chang
- Department of Materials Science and Engineering, National Tsing Hua University, No. 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, No. 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Yung-Tang Chuang
- Department of Materials Science and Engineering, National Tsing Hua University, No. 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, No. 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Hao-Wu Lin
- Department of Materials Science and Engineering, National Tsing Hua University, No. 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
- Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, No. 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Bin Hu
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
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Zhao J, Lo LW, Wan H, Mao P, Yu Z, Wang C. High-Speed Fabrication of All-Inkjet-Printed Organometallic Halide Perovskite Light-Emitting Diodes on Elastic Substrates. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2102095. [PMID: 34623708 DOI: 10.1002/adma.202102095] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 08/20/2021] [Indexed: 06/13/2023]
Abstract
Halide perovskites have great potential for use in high-performance light-emitting diodes (LEDs) and displays. Here, a perovskite LEDs (PeLEDs) fabricated directly on an elastomer substrate, in which every single layer in the device from bottom anode to top cathode is patterned solely using a highly scalable inkjet printing process, is reported. Compared to PeLEDs made using conventional microfabrication processes, the printing process significantly shortens the fabrication time by at least tenfold (from over 5 h to less than 25 min). The all-printed PeLEDs have a novel 4-layer structure (bottom electrode, perovskite emissive layer, buffer layer, top electrode) without separate electron or hole transporting layers. For flexible PeLEDs printed directly in ambient conditions, a turn-on voltage, maximum luminance intensity, and maximum current efficiency of 3.46 V, 10227 cd m-2 , and 2.01 cd A-1 , respectively, is achieved. The devices also exhibit excellent robustness and stability even when bent to a curvature radius of 2.5 mm. The reported device structure and fabrication processes can enable high-performance flexible PeLEDs to be manufactured over a larger area at extremely low cost and fast speed, which can facilitate the adoption of the promising PeLED technology in the emerging foldable displays, smart wearables, and many other applications.
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Affiliation(s)
- Junyi Zhao
- Department of Electrical & Systems Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA
| | - Li-Wei Lo
- Department of Electrical & Systems Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA
- Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA
| | - Haochuan Wan
- Department of Electrical & Systems Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA
| | - Pengsu Mao
- Department of Industrial and Manufacturing Engineering, Florida State University, Tallahassee, FL, 32310, USA
| | - Zhibin Yu
- Department of Industrial and Manufacturing Engineering, Florida State University, Tallahassee, FL, 32310, USA
| | - Chuan Wang
- Department of Electrical & Systems Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA
- Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, 63130, USA
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Liang FX, Fan RY, Li JY, Fu C, Jiang JJ, Fang T, Wu D, Luo LB. Highly Sensitive Ultraviolet and Visible Wavelength Sensor Composed of Two Identical Perovskite Nanofilm Photodetectors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102987. [PMID: 34431627 DOI: 10.1002/smll.202102987] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/28/2021] [Indexed: 06/13/2023]
Abstract
This work reports the design of a wavelength sensor composed of two identical perovskite (FA0.85 Cs0.15 PbI3 ) photodetectors (PDs) that are capable of discriminating incident wavelength in a quantitative way. Due to strong wavelength-dependent absorption coefficient, the penetration depth of the photons in the FA0.85 Cs0.15 PbI3 nanofilms increases with the increasing wavelength, leading to a gradual decrease of photo-generated current for PD1, but an increase of photocurrent in PD2, according to the theoretical simulation of Technology Computer Aided Design. This special evolution of photo-generated current as a function of wavelength facilitates the quantitative determination of the wavelength since the current ratio of both PDs monotonously decreases with the increase of wavelength from 265 to 810 nm. The average absolute error and the average relative error are estimated to be 7.6 nm and 1.68%, respectively, which are much better than other semiconductors materials-based wavelength sensors previously reported. It is believed that the present perovskite film-based wavelength sensor will have potential application in the future color/spectrum optoelectronic devices.
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Affiliation(s)
- Feng-Xia Liang
- School of Materials Science and Engineering and Anhui Provincial Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei, 230009, China
| | - Rong-Yu Fan
- School of Materials Science and Engineering and Anhui Provincial Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei, 230009, China
| | - Jing-Yue Li
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, 230009, China
| | - Can Fu
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, 230009, China
| | - Jing-Jing Jiang
- School of Materials Science and Engineering and Anhui Provincial Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei, 230009, China
| | - Ting Fang
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, 230009, China
| | - Di Wu
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Lin-Bao Luo
- School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei, 230009, China
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Fan B, Hu L, Chen G, Zhang J, Zhang X. Properties of mesoporous hybrid perovskite nanocrystals and its application in light-emitting diodes. NANOTECHNOLOGY 2021; 32:485708. [PMID: 34348247 DOI: 10.1088/1361-6528/ac1a92] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
We fabricated mesoporous perovskite nanocrystal for the first time, and investigated its optical properties and application in light-emitting diodes (LEDs). The transformation of mesoporous structure can be ascribed to the decomposition of nanocrystals under dilution condition, which results in the blueshift of luminescence. The mesoporous nanocrystals under proper dilution may achieve improved perovskite LEDs, with maximum luminance and current efficiency of 23370 cd m-2and 6.7 cd A-1, respectively. This work provide an avenue to the optical engineering of perovskite nanocrystals, and demonstrate that perovskite concentration is one of key factors for realizing efficient LEDs.
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Affiliation(s)
- Bingfeng Fan
- Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of physics and Optoelectronic Engineering, Foshan University, Foshan 528225, People's Republic of China
| | - Lei Hu
- Guangdong Provincial Key Laboratory of Information Photonics Technology, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Guojie Chen
- Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology, School of physics and Optoelectronic Engineering, Foshan University, Foshan 528225, People's Republic of China
| | - Jinbao Zhang
- Fujian Provincial Key Laboratory of Advanced Materials, School of Materials, Xiamen University, Xiamen, 361005, People's Republic of China
| | - Xiaoli Zhang
- Guangdong Provincial Key Laboratory of Information Photonics Technology, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
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Wang X, Cai L, Zou Y, Liang D, Wang L, Li Y, Zang J, Bai G, Gao X, Song T, Sun B. Unveiling the critical role of ammonium bromide in blue emissive perovskite films. NANOSCALE 2021; 13:13497-13505. [PMID: 34477754 DOI: 10.1039/d1nr02633j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Implementation of ammonium halides to trigger low-dimensional perovskite formation has been intensively investigated to achieve blue perovskite light-emitting diodes (PeLEDs). However, the general roles of the incorporated ammonium cations on the quality of the perovskite films, as well as device performance, are still unclear. It is indispensable to build a guideline to rationalize ammonium halides for decent blue emissive films. Here, by thoroughly investigating a series of ammonium cations containing the different number of ammonium groups and ionic radius, we reveal that the mechanism beyond the tunable emission wavelength, crystallization kinetics, and spectral stability of the obtained blue perovskite films is highly relevant to the molecular structure of the ammonium cations. In parallel with reducing the dimensionality to form normal Ruddlesden-Popper phases, the incorporated ammonium cations also likely modulate the Pb-Br orbit coupling through A-site engineering and generate either Dion-Jacobson or "hollow" perovskites, providing alternative routes to achieve efficient and stable blue emissive films. Our work paves a way to rationalize ammonium halides to develop prevailing active layers for further improving the performance of blue PeLEDs.
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Affiliation(s)
- Xuechun Wang
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, China.
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Kim N, Shin M, Jun S, Choi B, Kim J, Park J, Kim H, Jung W, Lee JY, Cho YH, Shin B. Highly Efficient Vacuum-Evaporated CsPbBr 3 Perovskite Light-Emitting Diodes with an Electrical Conductivity Enhanced Polymer-Assisted Passivation Layer. ACS APPLIED MATERIALS & INTERFACES 2021; 13:37323-37330. [PMID: 34337932 DOI: 10.1021/acsami.1c05447] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Highly efficient vacuum-deposited CsPbBr3 perovskite light-emitting diodes (PeLEDs) are demonstrated by introducing a separate polyethylene oxide (PEO) passivation layer. A CsPbBr3 film deposited on the PEO layer via thermal co-evaporation of CsBr and PbBr2 exhibits an almost 50-fold increase in photoluminescence quantum yield intensity compared to a reference sample without PEO. This enhancement is attributed to the passivation of interfacial defects of the perovskite, as evidenced by temperature-dependent photoluminescence measurements. However, direct application of PEO to an LED device is challenging because of the electrically insulating nature of PEO. This issue is solved by doping PEO layers with MgCl2. This strategy results in an enhanced luminance and external quantum efficiency (EQE) of up to 6887 cd m-2 and 7.6%, respectively. To the best of our knowledge, this is the highest EQE reported to date among vacuum-deposited PeLEDs.
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Affiliation(s)
- Nakyung Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Mingue Shin
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Seongmoon Jun
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Bongjun Choi
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Joonyun Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jinu Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hyunseung Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Woochul Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jung-Yong Lee
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Yong-Hoon Cho
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Byungha Shin
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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