1
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Marques N, Jana S, Mendes MJ, Águas H, Martins R, Panigrahi S. Surface modification of halide perovskite using EDTA-complexed SnO 2 as electron transport layer in high performance solar cells. RSC Adv 2024; 14:12397-12406. [PMID: 38633492 PMCID: PMC11022184 DOI: 10.1039/d3ra08900b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 04/08/2024] [Indexed: 04/19/2024] Open
Abstract
The long-term performance of metal halide perovskite solar cells (PSCs) can be significantly improved by tuning the surface characteristics of the perovskite layers. Herein, low-temperature-processed ethylenediaminetetraacetic acid (EDTA)-complexed SnO2 (E-SnO2) is successfully employed as an electron transport layer (ETL) in PSCs, enhancing the efficiency and stability of the devices. The effects of EDTA treatment on SnO2 are investigated for different concentrations: comparing the solar cells' response with 15%-2.5% SnO2 and E-SnO2 based ETLs, and it was found that 7.5% E-SnO2 provided the best results. The improved surface properties of the perovskite layer on E-SnO2 are attributed to the presence of small amount of PbI2 which contributes to passivate the defects at the grain boundaries and films' surface. However, for the excess PbI2 based devices, photocurrent dropped, which could be attributed to the generation of shallow traps due to excess PbI2. The better alignment between the Fermi level of E-SnO2 and the conduction band of perovskite is another favorable aspect that enables increased open-circuit potential (VOC), from 0.82 V to 1.015 V, yielding a stabilized power conversion efficiency of 15.51%. This complex ETL strategy presented here demonstrates the enormous potential of E-SnO2 as selective contact to enhance the perovskite layer properties and thereby allow stable and high-efficiency PSCs.
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Affiliation(s)
- Nuno Marques
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP/UNINOVA Campus de Caparica, Caparica 2829-516 Portugal
| | - Santanu Jana
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP/UNINOVA Campus de Caparica, Caparica 2829-516 Portugal
| | - Manuel J Mendes
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP/UNINOVA Campus de Caparica, Caparica 2829-516 Portugal
| | - Hugo Águas
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP/UNINOVA Campus de Caparica, Caparica 2829-516 Portugal
| | - Rodrigo Martins
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP/UNINOVA Campus de Caparica, Caparica 2829-516 Portugal
| | - Shrabani Panigrahi
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP/UNINOVA Campus de Caparica, Caparica 2829-516 Portugal
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2
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Li C, Li X, Liu X, Ma L, Yan H, Tong L, Yang Z, Liu J, Bao D, Yin J, Li X, Wang P, Li R, Huang L, Yu M, Jia S, Wang T. On-Substrate Fabrication of CsPbBr 3 Single-Crystal Microstructures via Nanoparticle Self-Assembly-Assisted Low-Temperature Sintering. ACS NANO 2024; 18:9128-9136. [PMID: 38492230 DOI: 10.1021/acsnano.4c00326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2024]
Abstract
The growth of all-inorganic perovskite single-crystal microstructures on substrates is a promising approach for constructing photonic and electronic microdevices. However, current preparation methods typically involve direct control of ions or atoms, which often depends on specific lattice-matched substrates for epitaxial growth and other stringent conditions that limit the mild preparation and flexibility of device integration. Herein, we present the on-substrate fabrication of CsPbBr3 single-crystal microstructures obtained via a nanoparticle self-assembly assisted low-temperature sintering (NSALS) method. Sintering guided by self-assembled atomically oriented superlattice embryos facilitated the formation of single-crystal microstructures under mild conditions without substrate dependence. The as-prepared on-substrate microstructures exhibited a consistent out-of-plane orientation with a carrier lifetime of up to 82.7 ns. Photodetectors fabricated by using these microstructures exhibited an excellent photoresponse of 9.15 A/W, and the dynamic optical response had a relative standard deviation as low as 0.1831%. The discrete photosensor microarray chip with 174000 pixels in a 100 mm2 area showed a response difference of less than 6%. This method of nanoscale particle-controlled single crystal growth on a substrate offers a perspective for mild-condition preparation and in situ repair of crystals of various types. This advancement can propel the flexible integration and widespread application of perovskite devices.
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Affiliation(s)
- Cancan Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100049, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xiao Li
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Xiang Liu
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Lindong Ma
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Hui Yan
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Lei Tong
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Zhibo Yang
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Jiaxing Liu
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Deyu Bao
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Jikun Yin
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Xiujun Li
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Peng Wang
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Rong Li
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Lei Huang
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Miao Yu
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Sitong Jia
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Tie Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing 100049, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Tianjin Key Laboratory of Life and Health Detection, Life and Health Intelligent Research Institute, Tianjin University of Technology, Tianjin 300384, P. R. China
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Panigrahi S, Jana S, Calmeiro T, Fortunato E, Mendes MJ, Martins R. MXene-Enhanced Nanoscale Photoconduction in Perovskite Solar Cells Revealed by Conductive Atomic Force Microscopy. ACS APPLIED MATERIALS & INTERFACES 2024; 16:1930-1940. [PMID: 38113449 DOI: 10.1021/acsami.3c16245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
The use of MXene materials in perovskite solar cells (PSCs) has received significant interest due to their distinct features that result from the termination of functional groups and the oxidation of MXene. Herein, we have used photoconductive atomic force microscopy (pcAFM) to map the local (nanoscale) photovoltaic performances of the Ti3C2Tx MXene nanosheet-integrated TiO2 (MXene@TiO2) electron transport layer-based PSCs to determine the influence of the treatment on the microscopic charge flow inside the devices. At different applied voltages, the morphology and current have been simultaneously measured with nanoscale resolution from the top surfaces of the solar cells without back contacts. The PSCs based on MXene@TiO2 exhibit more enhanced current flow across the grains than the only TiO2-based PSCs. At zero applied bias, the average local photocurrent for MXene-integrated PSCs is several times higher than the reference PSCs and decreases gradually when the positive bias is increased until the open circuit voltage. Considerable differences were also observed in the short circuit current among different locations that appear identical in AFM topography. Our findings reveal the potential of MXene-integrated ETLs to enhance the nanoscale photoconduction and inherent characteristics of the active layers, thereby improving the performance of the polycrystalline photovoltaic devices.
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Affiliation(s)
- Shrabani Panigrahi
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP/UNINOVA, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Santanu Jana
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP/UNINOVA, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Tomás Calmeiro
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP/UNINOVA, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Elvira Fortunato
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP/UNINOVA, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Manuel J Mendes
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP/UNINOVA, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Rodrigo Martins
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and CEMOP/UNINOVA, Campus de Caparica, 2829-516 Caparica, Portugal
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Wang Y, Li Y, Gao Z, Chen Q, Liu W, Fu Y, Liu Q, He D, Li J. Notable Performance Enhancement of CsPbI 2Br Solar Cells by a Dual-Function Strategy with CsPbBr 3 Nanocrystals. ACS APPLIED MATERIALS & INTERFACES 2023; 15:53558-53567. [PMID: 37939372 DOI: 10.1021/acsami.3c13868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Herein, a dual-function strategy, in which CsPbI2Br is treated by CsPbBr3 nanocrystals (NCs) via addition and surface modification to construct the "electron bridge" and gradient heterojunction, respectively, to notably improve the performance of the CsPbI2Br solar cells, is proposed. The "electron bridge" formed by the CsPbBr3 NCs provides an extra transport channel for the photogenerated electrons in the CsPbI2Br layer, thus facilitating electron transport. Meanwhile, surface modification of CsPbI2Br by the CsPbBr3 NCs forms a gradient heterojunction between the CsPbI2Br layer and the P3HT layer, enhancing hole extraction accordingly. In addition, the CsPbBr3 NC treatment passivates the defects at the bulk and surface of the CsPbI2Br layers, thus suppressing carrier recombination. Thanks to these positive effects of the CsPbBr3 NCs, the demonstration device with a simple configuration of ITO/SnO2/CsPbI2Br/P3HT/Ag achieves a notable power conversion efficiency of 17.03%, which is among the highest efficiencies reported for CsPbI2Br-based solar cells.
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Affiliation(s)
- Yanzhou Wang
- LONGi Institute of Future Technology, and School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Yali Li
- LONGi Institute of Future Technology, and School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Zhe Gao
- LONGi Institute of Future Technology, and School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Qiulu Chen
- LONGi Institute of Future Technology, and School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Weining Liu
- LONGi Institute of Future Technology, and School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Yujun Fu
- LONGi Institute of Future Technology, and School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Qiming Liu
- LONGi Institute of Future Technology, and School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Deyan He
- LONGi Institute of Future Technology, and School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
| | - Junshuai Li
- LONGi Institute of Future Technology, and School of Materials & Energy, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
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5
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Fan Q, Liu D, Xie Z, Le Z, Zhu H, Song X. Visible-Light Photocatalytic Highly Selective Oxidation of Alcohols into Carbonyl Compounds by CsPbBr 3 Perovskite. J Org Chem 2023; 88:14559-14570. [PMID: 37774716 DOI: 10.1021/acs.joc.3c01573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
Conversion of alcohols into corresponding carbonyl compounds through an oxidation reaction with high conversion and selectivity simultaneously under mild conditions still remains a great challenge. Herein, a cost-effective and highly efficient photocatalytic protocol for selective oxidation of alcohols was developed using CsPbBr3 perovskite as a heterogeneous photocatalyst, which afforded aldehydes/ketones exclusively with a yield of 99% at ambient temperature under an air atmosphere. Moreover, the photocatalyst can be recycled at least 5 times without a significant decrease in catalytic activity. The detailed reaction mechanism was investigated by a series of quenching experiments, including Stern-Volmer experiments and electron paramagnetic resonance spectroscopy analysis as well as DFT calculations.
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Affiliation(s)
- Qiangwen Fan
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, China
| | - Dawei Liu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, China
| | - Zongbo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, China
| | - Zhanggao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, China
| | - Haibo Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang 330013, China
| | - Xiuqing Song
- Large-scale Instruments and Equipment Sharing Platform, Beijing University of Technology, Beijing 100124, China
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6
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Alosaimi G, Huang CY, Sharma P, Wu T, Seidel J. Morphology-Dependent Charge Carrier Dynamics and Ion Migration Behavior of CsPbBr 3 Halide Perovskite Quantum Dot Films. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207220. [PMID: 36807547 DOI: 10.1002/smll.202207220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 01/16/2023] [Indexed: 05/18/2023]
Abstract
Exceptional electronic, optoelectronic, and sensing properties of inorganic Cs-based perovskites are significantly influenced by the defect chemistry of the material. Although organic halide perovskites that have a polycrystalline structure are heavily studied, understanding of the defect properties at the grain boundaries (GB) of inorganic Cs-based perovskite quantum dots (QDs) is still limited. Here, morphology-dependent charge carrier dynamics of CsPbBr3 quantum dots at the nanoscale by performing scanning probe microscopy of thermally treated samples are investigated. The grain boundaries of defect-engineered samples show higher surface potential than the grain interiors under light illumination, suggesting an effective role of GBs as charge collection and transport channels. The lower density of crystallographic defects and lower trap density at GBs specifically of heat-treated samples cause insignificant dark current, lower local current hysteresis, and higher photocurrent, than the control samples. It is also shown that the decay rate of surface photovoltage of the heated sample is quicker than the control sample, which implies a considerable impact of ion migration on the relaxation dynamic of photogenerated charge carriers. These findings reveal that the annealing process is an effective strategy to control not only the morphology but also the optoelectrical properties of GB defects, and the dynamic of ion migration. Understanding the origin of photoelectric activity in this material allows for designing and engineering optoelectronic QD devices with enhanced functionality.
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Affiliation(s)
- Ghaida Alosaimi
- Department of Chemistry, Faculty of Science, Taif University, Taif, 21944, Saudi Arabia
| | - Chien-Yu Huang
- School of Materials Science and Engineering, UNSW Australia, Sydney, NSW, 2052, Australia
| | - Pankaj Sharma
- School of Materials Science and Engineering, UNSW Australia, Sydney, NSW, 2052, Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies (FLEET), UNSW Sydney, Sydney, 2052, Australia
- College of Science and Engineering, Flinders University, Bedford Park, Adelaide, SA, 5042, Australia
| | - Tom Wu
- School of Materials Science and Engineering, UNSW Australia, Sydney, NSW, 2052, Australia
| | - Jan Seidel
- School of Materials Science and Engineering, UNSW Australia, Sydney, NSW, 2052, Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies (FLEET), UNSW Sydney, Sydney, 2052, Australia
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Yerezhep D, Omarova Z, Aldiyarov A, Shinbayeva A, Tokmoldin N. IR Spectroscopic Degradation Study of Thin Organometal Halide Perovskite Films. Molecules 2023; 28:molecules28031288. [PMID: 36770955 PMCID: PMC9919043 DOI: 10.3390/molecules28031288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
The advantages of IR spectroscopy include relatively fast analysis and sensitivity, which facilitate its wide application in the pharmaceutical, chemical and polymer sectors. Thus, IR spectroscopy provides an excellent opportunity to monitor the degradation and concomitant evolution of the molecular structure within a perovskite layer. As is well-known, one of the main limitations preventing the industrialization of perovskite solar cells is the relatively low resistance to various degradation factors. The aim of this work was to study the degradation of the surface of a perovskite thin film CH3NH3PbI3-xClx caused by atmosphere and light. To study the surface of CH3NH3PbI3-xClx, a scanning electron microscope, infrared (IR) spectroscopy and optical absorption were used. It is shown that the degradation of the functional layer of perovskite proceeds differently depending on the acting factor present in the surrounding atmosphere, whilst the chemical bonds are maintained within the perovskite crystal structure under nitrogen. However, when exposed to an ambient atmosphere, an expansion of the NH3+ band is observed, which is accompanied by a shift in the N-H stretching mode toward higher frequencies; this can be explained by the degradation of the perovskite surface due to hydration. This paper shows that the dissociation of H2O molecules under the influence of sunlight can adversely affect the efficiency and stability of the absorbing layer. This work presents an approach to the study of perovskite structural stability with the aim of developing alternative concepts to the fabrication of stable and sustainable perovskite solar cells.
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Affiliation(s)
- Darkhan Yerezhep
- Faculty of Physics and Technology, Al Farabi Kazakh National University, 71 Al-Farabi Ave., Almaty 050040, Kazakhstan
- Correspondence: (D.Y.); (Z.O.)
| | - Zhansaya Omarova
- Faculty of Physics and Technology, Al Farabi Kazakh National University, 71 Al-Farabi Ave., Almaty 050040, Kazakhstan
- Correspondence: (D.Y.); (Z.O.)
| | - Abdurakhman Aldiyarov
- Faculty of Physics and Technology, Al Farabi Kazakh National University, 71 Al-Farabi Ave., Almaty 050040, Kazakhstan
| | - Ainura Shinbayeva
- Faculty of Physics and Technology, Al Farabi Kazakh National University, 71 Al-Farabi Ave., Almaty 050040, Kazakhstan
| | - Nurlan Tokmoldin
- Optoelectronics of Disordered Semiconductors, Institute of Physics and Astronomy, University of Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam-Golm, Germany
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Zhou Y, Yang J, Luo X, Li Y, Qiu Q, Xie T. Selection, Preparation and Application of Quantum Dots in Perovskite Solar Cells. Int J Mol Sci 2022; 23:ijms23169482. [PMID: 36012746 PMCID: PMC9409050 DOI: 10.3390/ijms23169482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/13/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
As the third generation of new thin-film solar cells, perovskite solar cells (PSCs) have attracted much attention for their excellent photovoltaic performance. Today, PSCs have reported the highest photovoltaic conversion efficiency (PCE) of 25.5%, which is an encouraging value, very close to the highest PCE of the most widely used silicon-based solar cells. However, scholars have found that PSCs have problems of being easily decomposed under ultraviolet (UV) light, poor stability, energy level mismatch and severe hysteresis, which greatly limit their industrialization. As unique materials, quantum dots (QDs) have many excellent properties and have been widely used in PSCs to address the issues mentioned above. In this article, we describe the application of various QDs as additives in different layers of PSCs, as luminescent down-shifting materials, and directly as electron transport layers (ETL), light-absorbing layers and hole transport layers (HTL). The addition of QDs optimizes the energy level arrangement within the device, expands the range of light utilization, passivates defects on the surface of the perovskite film and promotes electron and hole transport, resulting in significant improvements in both PCE and stability. We summarize in detail the role of QDs in PSCs, analyze the perspective and associated issues of QDs in PSCs, and finally offer our insights into the future direction of development.
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Affiliation(s)
- Yankai Zhou
- Engineering Research Center for Hydrogen Energy Materials and Devices, College of Rare Earths, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou 341000, China
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou 341000, China
| | - Jiayan Yang
- Engineering Research Center for Hydrogen Energy Materials and Devices, College of Rare Earths, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou 341000, China
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou 341000, China
| | - Xingrui Luo
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou 341000, China
| | - Yingying Li
- Engineering Research Center for Hydrogen Energy Materials and Devices, College of Rare Earths, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou 341000, China
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou 341000, China
| | - Qingqing Qiu
- Engineering Research Center for Hydrogen Energy Materials and Devices, College of Rare Earths, Jiangxi University of Science and Technology, 86 Hong Qi Road, Ganzhou 341000, China
- Correspondence:
| | - Tengfeng Xie
- College of Chemistry, Jilin University, Changchun 130012, China
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Garcia-Arellano G, Trippé-Allard G, Campos T, Bernardot F, Legrand L, Garrot D, Deleporte E, Testelin C, Chamarro M. Unexpected Anisotropy of the Electron and Hole Landé g-Factors in Perovskite CH 3NH 3PbI 3 Polycrystalline Films. NANOMATERIALS 2022; 12:nano12091399. [PMID: 35564108 PMCID: PMC9105229 DOI: 10.3390/nano12091399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/15/2022] [Accepted: 04/15/2022] [Indexed: 12/10/2022]
Abstract
In this work, we studied, at low temperature, the coherent evolution of the localized electron and hole spins in a polycrystalline film of CH3NH3PbI3 (MAPI) by using a picosecond-photo-induced Faraday rotation technique in an oblique magnetic field. We observed an unexpected anisotropy for the electron and hole spin. We determined the electron and hole Landé factors when the magnetic field was applied in the plane of the film and perpendicular to the exciting light, denoted as transverse ⟂ factors, and when the magnetic field was applied perpendicular to the film and parallel to the exciting light, denoted as parallel ∥ factors. We obtained |ge,⟂|=2.600 ± 0.004, |ge,∥|=1.604 ± 0.033 for the electron and |gh,⟂|=0.406 ± 0.002, |gh,∥|=0.299 ± 0.007 for the hole. Possible origins of this anisotropy are discussed herein.
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Affiliation(s)
- Guadalupe Garcia-Arellano
- Institut des NanoSciences de Paris, CNRS, Sorbonne Université, F-75005 Paris, France; (G.G.-A.); (F.B.); (C.T.); (M.C.)
| | - Gaëlle Trippé-Allard
- LuMIn (Laboratoire Lumière, Matière et Interfaces), CentraleSupélec, CNRS, ENS Paris-Saclay, Université Paris-Saclay, F-91190 Gif-sur-Yvette, France; (G.T.-A.); (T.C.); (E.D.)
| | - Thomas Campos
- LuMIn (Laboratoire Lumière, Matière et Interfaces), CentraleSupélec, CNRS, ENS Paris-Saclay, Université Paris-Saclay, F-91190 Gif-sur-Yvette, France; (G.T.-A.); (T.C.); (E.D.)
- Institut Photovoltaïque d’Île-de-France (IPVF), F-91120 Palaiseau, France
| | - Frédérick Bernardot
- Institut des NanoSciences de Paris, CNRS, Sorbonne Université, F-75005 Paris, France; (G.G.-A.); (F.B.); (C.T.); (M.C.)
| | - Laurent Legrand
- Institut des NanoSciences de Paris, CNRS, Sorbonne Université, F-75005 Paris, France; (G.G.-A.); (F.B.); (C.T.); (M.C.)
- Correspondence:
| | - Damien Garrot
- GEMaC (Groupe d’Etude de la Matière Condensée), CNRS, UVSQ, Université Paris-Saclay, F-78000 Versailles, France;
| | - Emmanuelle Deleporte
- LuMIn (Laboratoire Lumière, Matière et Interfaces), CentraleSupélec, CNRS, ENS Paris-Saclay, Université Paris-Saclay, F-91190 Gif-sur-Yvette, France; (G.T.-A.); (T.C.); (E.D.)
| | - Christophe Testelin
- Institut des NanoSciences de Paris, CNRS, Sorbonne Université, F-75005 Paris, France; (G.G.-A.); (F.B.); (C.T.); (M.C.)
| | - Maria Chamarro
- Institut des NanoSciences de Paris, CNRS, Sorbonne Université, F-75005 Paris, France; (G.G.-A.); (F.B.); (C.T.); (M.C.)
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10
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Zhao Q, Han R, Marshall AR, Wang S, Wieliczka BM, Ni J, Zhang J, Yuan J, Luther JM, Hazarika A, Li GR. Colloidal Quantum Dot Solar Cells: Progressive Deposition Techniques and Future Prospects on Large-Area Fabrication. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2107888. [PMID: 35023606 DOI: 10.1002/adma.202107888] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 12/18/2021] [Indexed: 06/14/2023]
Abstract
Colloidally grown nanosized semiconductors yield extremely high-quality optoelectronic materials. Many examples have pointed to near perfect photoluminescence quantum yields, allowing for technology-leading materials such as high purity color centers in display technology. Furthermore, because of high chemical yield, and improved understanding of the surfaces, these materials, particularly colloidal quantum dots (QDs) can also be ideal candidates for other optoelectronic applications. Given the urgent necessity toward carbon neutrality, electricity from solar photovoltaics will play a large role in the power generation sector. QDs are developed and shown dramatic improvements over the past 15 years as photoactive materials in photovoltaics with various innovative deposition properties which can lead to exceptionally low-cost and high-performance devices. Once the key issues related to charge transport in optically thick arrays are addressed, QD-based photovoltaic technology can become a better candidate for practical application. In this article, the authors show how the possibilities of different deposition techniques can bring QD-based solar cells to the industrial level and discuss the challenges for perovskite QD solar cells in particular, to achieve large-area fabrication for further advancing technology to solve pivotal energy and environmental issues.
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Affiliation(s)
- Qian Zhao
- School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Rui Han
- College of Electronic Information and Optical Engineering, Nankai University, Tianjin, 300350, China
| | - Ashley R Marshall
- Condensed Matter Physics Department of Physics, University of Oxford, Parks Road, Oxford, OX13PU, UK
| | - Shuo Wang
- School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | | | - Jian Ni
- College of Electronic Information and Optical Engineering, Nankai University, Tianjin, 300350, China
| | - Jianjun Zhang
- College of Electronic Information and Optical Engineering, Nankai University, Tianjin, 300350, China
| | - Jianyu Yuan
- Institute of Functional Nano and Soft Materials Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Joseph M Luther
- National Renewable Energy Laboratory, Golden, CO, 80401, USA
| | - Abhijit Hazarika
- Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad, 500007, India
| | - Guo-Ran Li
- School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
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11
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Chi W, Banerjee SK. Application of Perovskite Quantum Dots as an Absorber in Perovskite Solar Cells. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112412] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Weiguang Chi
- Microelectronics Research Center Department of Electrical and Computer Engineering The University of Texas at Austin Austin Texas 78758 USA
| | - Sanjay K. Banerjee
- Microelectronics Research Center Department of Electrical and Computer Engineering The University of Texas at Austin Austin Texas 78758 USA
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12
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Yang B, Mei S, He H, Zhu Y, Hu R, Zou J, Xing G, Guo R. Lead oxide enables lead volatilization pollution inhibition and phase purity modulation in perovskite quantum dots embedded borosilicate glass. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2021.09.052] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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13
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Chi W, Banerjee S. Application of Perovskite Quantum Dots as Absorber for Perovskite Solar Cell. Angew Chem Int Ed Engl 2021; 61:e202112412. [PMID: 34729885 DOI: 10.1002/anie.202112412] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Indexed: 11/08/2022]
Abstract
Perovskite quantum dots (QDs) preserve the attractive properties of perovskite bulk materials and present additional advantages, owing to their quantum confinement effect, leading to their applicability as an absorber in perovskite solar cells. In this article, the issues and advantages of perovskite QDs are analyzed in terms of purification, device fabrication with perovskite QDs, light absorption, charge transport and stability. In addition, promising strategies to enhance perovskite QDs and QD-based solar cells are elucidated based on exchange chemistry (ion and ligand exchange), passivation engineering (ion and ligand passivation) and structure engineering (conventional/inverted, planar/mesoscopic and dimensionally graded structures). All these discussions will give a clue to the further development of perovskite QDs and thus the advancement of QD-based solar cells.
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Affiliation(s)
- Weiguang Chi
- The University of Texas at Austin, Microelectronics Research Center, Department of Electrical and Computer Engineering, 78758, Austin, UNITED STATES
| | - Sanjay Banerjee
- The University of Texas at Austin, Department of Electrical and Computer Engineering, Microelectronics Research Center, 78758, Austin, UNITED STATES
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14
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Zhao Y, Xu Y, Shi L, Fan Y. Perovskite Nanomaterial-Engineered Multiplex-Mode Fluorescence Sensing of Edible Oil Quality. Anal Chem 2021; 93:11033-11042. [PMID: 34320808 DOI: 10.1021/acs.analchem.1c02425] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Water-soluble fluorescence nanomaterials are widely applied for water-phase food safety monitoring. However, there is still a challenge for the development of oil-soluble fluorescence nanomaterials for oil-phase food safety detection. Particularly, the edible oil quality has a huge impact on human health, in which excessive acid number (AN), 3-chloro-1,2-propanediol (3-MCPD), and moisture content (MC) are critical monitoring factors. Herein, orange-emitting oil-soluble CsPbBr1.5I1.5 quantum dots (QDs) were prepared and applied for AN and 3-MCPD detection depending on fluorescence quenching and wavelength shifts. A "turn-off" fluorescence sensor and "wavelength-shift" fluorescence colorimetric sensor were fabricated for AN and 3-MCPD detection. Water-sensitive mesoporous silica-coated CsPbBr1.5I1.5 QDs were employed for the establishment of ratiometric fluorescence sensors for MC monitoring by introducing water-stable green-emitting CsPbBr3 nanosheets (NSs) as reference probes. Perovskite nanomaterial-engineered multiplex-mode fluorescence sensors were proposed for the detection of AN, 3-MCPD, and MC in edible oil, with the limits of detection (LODs) of 0.71 mg KOH/g, 39.8 μg/mL 3-MCPD, and 0.45% MC, respectively. This work not only expands the application of perovskite nanomaterials in the bioanalysis field but also provides new materials and novel approaches for the multiplex-mode oil-phase food safety monitoring.
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Affiliation(s)
- Yuan Zhao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yinjuan Xu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Lixia Shi
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Ying Fan
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
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15
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Hysteresis Analysis of Hole-Transport-Material-Free Monolithic Perovskite Solar Cells with Carbon Counter Electrode by Current Density-Voltage and Impedance Spectra Measurements. NANOMATERIALS 2020; 11:nano11010048. [PMID: 33375498 PMCID: PMC7824037 DOI: 10.3390/nano11010048] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 12/23/2020] [Indexed: 11/16/2022]
Abstract
Due to the tremendous increase in power conversion efficiency (PCE) of organic–inorganic perovskite solar cells (PSCs), this technology has attracted much attention. Despite being the fastest-growing photovoltaic technology to date, bottlenecks such as current density–voltage (J–V) hysteresis have significantly limited further development. Current density measurements performed with different sweep scan speeds exhibit hysteresis and the photovoltaic parameters extracted from the current density–voltage measurements for both scan directions become questionable. A current density–voltage measurement protocol needs to be established which can be used to achieve reproducible results and to compare devices made in different laboratories. In this work, we report a hysteresis analysis of a hole-transport-material-free (HTM-free) carbon-counter-electrode-based PSC conducted by current density–voltage and impedance spectra measurements. The effect of sweep scan direction and time delay was examined on the J–V characteristics of the device. The hysteresis was observed to be strongly sweep scan direction and time delay dependent and decreased as the delay increased. The J–V analysis conducted in the reverse sweep scan direction at a lower sweep time delay of 0.2 s revealed very large increases in the short circuit current density and the power conversion efficiency of 57.7% and 56.1%, respectively, compared with the values obtained during the forward scan under the same conditions. Impedance spectroscopy (IS) investigations were carried out and the effects of sweep scan speed, time delay, and frequency were analyzed. The hysteresis was observed to be strongly sweep scan direction, sweep time delay, and frequency dependent. The correlation between J–V and IS data is provided. The wealth of photovoltaic and impendence spectroscopic data reported in this work on the hysteresis study of the HTM-free PSC may help in establishing a current density–voltage measurement protocol, identifying components and interfaces causing the hysteresis, and modeling of PSCs, eventually benefiting device performance and long-term stability.
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16
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Zhang W, Liu X, He B, Zhu J, Li X, Shen K, Chen H, Duan Y, Tang Q. Enhanced Efficiency of Air-Stable CsPbBr 3 Perovskite Solar Cells by Defect Dual Passivation and Grain Size Enlargement with a Multifunctional Additive. ACS APPLIED MATERIALS & INTERFACES 2020; 12:36092-36101. [PMID: 32663398 DOI: 10.1021/acsami.0c08827] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The perovskite solar cells (PSCs) based on cesium lead bromide (CsPbBr3) with outstanding environmental stability and low preparation cost are regarded as one of the most promising photovoltaic devices for commercial applications. However, the performance of CsPbBr3 PSCs can be badly deteriorated by the intense charge recombination arising from the ionic defects at the grain boundaries of perovskite film. To cope with this issue, we adopt an amino acid of l-lysine with two amino and one carboxyl groups as a chemical additive to incorporate into perovskite film to simultaneously anchor the uncoordinated Pb2+ (Cs+) and halogen ion defects. Further, the grain size of CsPbBr3 perovskite is boosted from 688 to over 1000 nm after l-lysine incorporation as a result of the decreased nucleation rate and the sufficient growth of perovskite, which effectively reduce the grain boundaries for load defects. As expected, the optimized device achieves a best power conversion efficiency of 9.69% attributed to the remarkably reduced charge recombination and enhanced charge extraction arising from the efficient defects dual-passivation and enlarged grain size of perovskite film as well as the improved energy level alignment at the device interface after the introduction of l-lysine, which is elevated by 61.23% in comparison to 6.01% efficiency of the pristine one. Moreover, the unencapsulated device with l-lysine incorporation exhibits remarkable long-term stability in air with 80% RH at 25 °C and 0% RH at 80 °C as well as under continuous illumination conditions. This work provides an effective multifunctional additive for imperfection passivation and grain size enlargement of perovskite to build PSCs with high efficiency and stability.
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Affiliation(s)
- Wenyu Zhang
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, P.R. China
| | - Xiaojie Liu
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, P.R. China
| | - Benlin He
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, P.R. China
| | - Jingwei Zhu
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, P.R. China
| | - Xueke Li
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, P.R. China
| | - Kaixiang Shen
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, P.R. China
| | - Haiyan Chen
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, P.R. China
| | - Yanyan Duan
- State Centre for International Cooperation on Designer Low-Carbon and Environmental Material (SCICDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, P.R. China
| | - Qunwei Tang
- College of Information Science and Technology, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, P.R. China
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17
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Xu D, Wan Q, Wu S, Zhao Y, Xu X, Li L, He G. Enhancing the performance of LARP-synthesized CsPbBr 3 nanocrystal LEDs by employing a dual hole injection layer. RSC Adv 2020; 10:17653-17659. [PMID: 35515615 PMCID: PMC9053605 DOI: 10.1039/d0ra02622k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 04/29/2020] [Indexed: 11/21/2022] Open
Abstract
Lead halide perovskites have been considered promising materials for optoelectronic applications owing to their superior properties. CsPbBr3 nanocrystals (NCs) with a narrow particle size distribution and a narrow emission spectrum are synthesized by ligand-assisted re-precipitation (LARP), a low-cost and facile process. In inverted CsPbBr3 NC LEDs, a dual hole injection layer (HIL) of 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile (HAT-CN)/MoO3 is introduced to enhance hole injection and transport, because HAT-CN can extract electrons easily from the hole transport layer and leave a large number of holes there. The current and power efficiencies of the optimized device with a dual HIL are 1.5- and 1.8-fold higher than those of the single HIL device. It is believed that the dual HAT-CN/MoO3 HIL effectively promotes hole injection and has promise for application in many other devices.
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Affiliation(s)
- Dingyan Xu
- National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University Shanghai 200240 People's Republic of China
| | - Qun Wan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University Shanghai 200240 People's Republic of China
| | - Siyao Wu
- National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University Shanghai 200240 People's Republic of China
| | - Yu Zhao
- National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University Shanghai 200240 People's Republic of China
| | - Xinglei Xu
- National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University Shanghai 200240 People's Republic of China
| | - Liang Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University Shanghai 200240 People's Republic of China
| | - Gufeng He
- National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University Shanghai 200240 People's Republic of China
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18
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Jung S, Kim JH, Choi JW, Kang JW, Jin SH, Kang Y, Song M. Enhancement of Photoluminescence Quantum Yield and Stability in CsPbBr 3 Perovskite Quantum Dots by Trivalent Doping. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E710. [PMID: 32283620 PMCID: PMC7221998 DOI: 10.3390/nano10040710] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/03/2020] [Accepted: 04/04/2020] [Indexed: 12/03/2022]
Abstract
We determine the influence of substitutional defects on perovskite quantum dots through experimental and theoretical investigations. Substitutional defects were introduced by trivalent dopants (In, Sb, and Bi) in CsPbBr3 by ligand-assisted reprecipitation. We show that the photoluminescence (PL) emission peak shifts toward shorter wavelengths when doping concentrations are increased. Trivalent metal-doped CsPbBr3 enhanced the PL quantum yield (~10%) and air stability (over 10 days). Our findings provide new insights into the influence of substitutional defects on substituted CsPbBr3 that underpin their physical properties.
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Affiliation(s)
- Sujeong Jung
- Surface Technology Division, Korea Institute of Materials Science (KIMS), 797 Changwondae-ro, Sungsan-Gu, Gyeongsangnam-do, Changwon 51508, Korea; (S.J.); (J.H.K.); (J.W.C.)
| | - Jae Ho Kim
- Surface Technology Division, Korea Institute of Materials Science (KIMS), 797 Changwondae-ro, Sungsan-Gu, Gyeongsangnam-do, Changwon 51508, Korea; (S.J.); (J.H.K.); (J.W.C.)
| | - Jin Woo Choi
- Surface Technology Division, Korea Institute of Materials Science (KIMS), 797 Changwondae-ro, Sungsan-Gu, Gyeongsangnam-do, Changwon 51508, Korea; (S.J.); (J.H.K.); (J.W.C.)
| | - Jae-Wook Kang
- Department of Flexible and Printable Electronics, Polymer Materials Fusion Research Center, Chonbuk National University, Jeonju 54896, Korea;
| | - Sung-Ho Jin
- Department of Chemistry Education Graduate Department of Chemical Materials Institute for Plastic Information and Energy Materials, Pusan National University, Busan 46241, Korea
| | - Youngho Kang
- Materials Data Center, Korea Institute of Materials Science (KIMS), 797 Changwondae-ro, Sungsan-Gu, Gyeongsangnam-do, Changwon 51508, Korea
- Department of Materials Science and Engineering, Incheon National University, Incheon 22012, Korea
| | - Myungkwan Song
- Surface Technology Division, Korea Institute of Materials Science (KIMS), 797 Changwondae-ro, Sungsan-Gu, Gyeongsangnam-do, Changwon 51508, Korea; (S.J.); (J.H.K.); (J.W.C.)
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19
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Zhang W, Liu X, He B, Gong Z, Zhu J, Ding Y, Chen H, Tang Q. Interface Engineering of Imidazolium Ionic Liquids toward Efficient and Stable CsPbBr 3 Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4540-4548. [PMID: 31904210 DOI: 10.1021/acsami.9b20831] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The defect passivation of perovskite films is an efficacious way to further boost the power conversion efficiency (PCE) and long-term stability of perovskite solar cells (PSCs). In this work, ionic liquids (ILs) of 1-butyl-2,3-dimethylimidazolium chloride ([BMMIm]Cl) are used as a modification layer in perovskite films in carbon-based CsPbBr3 PSCs without a hole-transporting material (HTM) for passivating the surface defects. The preliminary results demonstrate that the [BMMIm]Cl modifier passivates the surface defects of the perovskite film and reduces the valence band of perovskite close to the work function of the carbon electrode, which causes a remarkably inhibited nonradiative and radiative charge recombination, improved energy-level matching, and decreased energy loss. After optimization, a champion efficiency of 9.92% with a Voc as high as 1.61 V is achieved for the [BMMIm]Cl tailored carbon-based CsPbBr3 PSC without HTM, which is improved by 61.3% in comparison with 6.15% for the control device. Furthermore, the encapsulation-free PSC presents good long-term stability after storage in an air atmosphere with 70% RH at 20 °C or 0% RH at 80 °C as well as under continuous illumination conditions for 30 days. The significantly improved PCE and stability in high humidity or temperature suggest that the perovskite passivation by ILs is an effective strategy for fabricating high-PCE and stable PSCs.
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Affiliation(s)
- Wenyu Zhang
- School of Materials Science and Engineering , Ocean University of China , 238 Songling Road , Qingdao 266100 , P. R. China
| | - Xiaojie Liu
- School of Materials Science and Engineering , Ocean University of China , 238 Songling Road , Qingdao 266100 , P. R. China
| | - Benlin He
- School of Materials Science and Engineering , Ocean University of China , 238 Songling Road , Qingdao 266100 , P. R. China
| | - Zekun Gong
- School of Materials Science and Engineering , Ocean University of China , 238 Songling Road , Qingdao 266100 , P. R. China
| | - Jingwei Zhu
- School of Materials Science and Engineering , Ocean University of China , 238 Songling Road , Qingdao 266100 , P. R. China
| | - Yang Ding
- School of Materials Science and Engineering , Ocean University of China , 238 Songling Road , Qingdao 266100 , P. R. China
| | - Haiyan Chen
- School of Materials Science and Engineering , Ocean University of China , 238 Songling Road , Qingdao 266100 , P. R. China
| | - Qunwei Tang
- Institute of New Energy Technology, College of Information Science and Technology , Jinan University , 601 Huangpu Avenue West , Guangzhou 510632 , P. R. China
- Joint Laboratory for Deep Blue Fishery Engineering , Qingdao National Laboratory for Marine Science and Technology , Qingdao 266237 , P. R. China
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20
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Yoshimura H, Yamauchi M, Masuo S. In Situ Observation of Emission Behavior during Anion-Exchange Reaction of a Cesium Lead Halide Perovskite Nanocrystal at the Single-Nanocrystal Level. J Phys Chem Lett 2020; 11:530-535. [PMID: 31814415 DOI: 10.1021/acs.jpclett.9b03204] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Postsynthesis anion-exchange reaction of cesium lead halide (CsPbX3; X = Cl, Br, and I) perovskite nanocrystals (NCs) has emerged as a unique strategy to control band gap. Recently, the partially anion-exchanged CsPb(Br/I)3 NC was reported to form an inhomogeneously alloyed heterostructure, which could possibly form some emission sites depending on the halide composition in the single NC. In this work, we observed the in situ emission behavior of single CsPb(Br/I)3 NCs during the anion-exchange reaction. Photon-correlation measurements of the single NCs revealed that the mixed halide CsPb(Br/I)3 NC exhibited single-photon emission. Even when irradiated with an intense excitation laser, the single NC exhibited single-photon emission with a photoluminescence spectrum of a single peak. These results suggested that the heterohalide compositions of the CsPb(Br/I)3 NC do not form any emission sites with different band gap energies; instead, the NC forms emission sites with uniform band gap energy as a whole NC via quantum confinement.
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Affiliation(s)
- Hiroyuki Yoshimura
- Department of Applied Chemistry for Environment , Kwansei Gakuin University , 2-1 Gakuen , Sanda , Hyogo 669-1337 , Japan
| | - Mitsuaki Yamauchi
- Department of Applied Chemistry for Environment , Kwansei Gakuin University , 2-1 Gakuen , Sanda , Hyogo 669-1337 , Japan
| | - Sadahiro Masuo
- Department of Applied Chemistry for Environment , Kwansei Gakuin University , 2-1 Gakuen , Sanda , Hyogo 669-1337 , Japan
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21
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Yao Y, Hang P, Wang P, Xu L, Cui C, Xie J, Xiao K, Li G, Lin P, Liu S, Xie D, Che S, Yang D, Yu X. CsPbBr 3 quantum dots assisted crystallization of solution-processed perovskite films with preferential orientation for high performance perovskite solar cells. NANOTECHNOLOGY 2019; 31:085401. [PMID: 31703224 DOI: 10.1088/1361-6528/ab55a1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The performance of hybrid perovskite solar cells (PSCs) is significantly influenced by the crystallization and morphology of perovskite films. Herein, a novel method of CsPbBr3 quantum dots (QDs) assisted nucleation is applied to prepare high quality solution-processed methylammonium lead iodide (MAPbI3) films by employing CsPbBr3 QDs as an additive into diethyl ether anti-solvent. The appropriate amount of CsPbBr3 QDs can act as effective heterogeneous nucleation centers, leading to the formation of smooth and pinhole-free perovskite films with increased grain size. Furthermore, the growth direction of MAPbI3 grains is regulated by CsPbBr3 QDs, exhibiting preferential orientation of (110) plane. Therefore, the MAPbI3 films with CsPbBr3 QDs modification show reduced defects and increased carrier lifetime. As a result, the champion PSC with a maximum power conversion efficiency (PCE) up to 20.17% is achieved and 85% of its initial PCE is maintained after aging 1000 h at room temperature under a relative humidity of 50%. This work demonstrates a feasible way to prepare high quality perovskite films for optoelectronic applications.
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Affiliation(s)
- Yuxin Yao
- Center for Optoelectronics Materials and Devices, Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
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22
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Chang C, Zou X, Cheng J, Ling T, Yao Y, Chen D. Applied Trace Alkali Metal Elements for Semiconductor Property Modulation of Perovskite Thin Films. Molecules 2019; 24:E4039. [PMID: 31703433 PMCID: PMC6891620 DOI: 10.3390/molecules24224039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/27/2019] [Accepted: 11/02/2019] [Indexed: 11/16/2022] Open
Abstract
With the rapid consumption of energy, clean solar energy has become a key study and development subject, especially the when new renewable energy perovskite solar cells (PSCs) are involved. The doping method is a common means to modulate the properties of perovskite film. The main work of this paper is to incorporate trace amounts of alkali metal elements into the perovskite layer and observe the effects on the properties of the perovskite device and the majority carrier type of the perovskite film. Comparative analysis was performed by doping with Na+, K+, and Rb+ or using undoped devices in the perovskite layer. The results show that the incorporation of alkali metal ions into the perovskite layer has an important effect on the majority carrier type of the perovskite film. The majority carrier type of the undoped perovskite layer is N-type, and the majority carrier type of the perovskite layer doped with the alkali metal element is P-type. The carrier concentration of perovskite films is increased by at least two orders of magnitude after doping. That is to say, we can control the majority of the carrier type of the perovskite layer by controlling the doping subjectively. This will provide strong support for the development of future homojunction perovskite solar cells. This is of great help to improve the performance of PSC devices.
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Affiliation(s)
- Chuangchuang Chang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Research Center for Sensor Technology, Beijing Key Laboratory for Sensor, MOE Key Laboratory for Modern Measurement and Control Technology, School of Applied Sciences, Beijing Information Science and Technology University, Jianxiangqiao Campus, Beijing 100101, China; (C.C.); (J.C.); (T.L.); (Y.Y.)
| | - Xiaoping Zou
- Beijing Advanced Innovation Center for Materials Genome Engineering, Research Center for Sensor Technology, Beijing Key Laboratory for Sensor, MOE Key Laboratory for Modern Measurement and Control Technology, School of Applied Sciences, Beijing Information Science and Technology University, Jianxiangqiao Campus, Beijing 100101, China; (C.C.); (J.C.); (T.L.); (Y.Y.)
| | - Jin Cheng
- Beijing Advanced Innovation Center for Materials Genome Engineering, Research Center for Sensor Technology, Beijing Key Laboratory for Sensor, MOE Key Laboratory for Modern Measurement and Control Technology, School of Applied Sciences, Beijing Information Science and Technology University, Jianxiangqiao Campus, Beijing 100101, China; (C.C.); (J.C.); (T.L.); (Y.Y.)
| | - Tao Ling
- Beijing Advanced Innovation Center for Materials Genome Engineering, Research Center for Sensor Technology, Beijing Key Laboratory for Sensor, MOE Key Laboratory for Modern Measurement and Control Technology, School of Applied Sciences, Beijing Information Science and Technology University, Jianxiangqiao Campus, Beijing 100101, China; (C.C.); (J.C.); (T.L.); (Y.Y.)
| | - Yujun Yao
- Beijing Advanced Innovation Center for Materials Genome Engineering, Research Center for Sensor Technology, Beijing Key Laboratory for Sensor, MOE Key Laboratory for Modern Measurement and Control Technology, School of Applied Sciences, Beijing Information Science and Technology University, Jianxiangqiao Campus, Beijing 100101, China; (C.C.); (J.C.); (T.L.); (Y.Y.)
| | - Dan Chen
- State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100864, China;
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23
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Kazuma E, Kim Y. Scanning probe microscopy for real-space observations of local chemical reactions induced by a localized surface plasmon. Phys Chem Chem Phys 2019; 21:19720-19731. [PMID: 31332407 DOI: 10.1039/c9cp02100k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Localised surface plasmon (LSP) resonance has attracted considerable attention in recent years as an efficient driving force for chemical reactions. The chemical reactions induced by LSP are classified into two types, namely, redox reactions based on plasmon-induced charge separation (PICS) and chemical reactions induced by the direct interaction between LSP and molecules (plasmon-induced chemical reactions). Although both types of reactions have been extensively studied, the mechanisms of PICS and plasmon-induced chemical reactions remain unexplained and controversial because conventional macroscopic methods can hardly grasp the local chemical reactions induced by LSP. In order to obtain mechanistic insights, nanoscale observations and investigations are necessary. Scanning probe microscopy (SPM) is a powerful experimental tool to investigate not only the surface morphology but also the physical and chemical properties of samples at a high spatial resolution. In this perspective review, we first explain SPM combined with optical excitation, and then, review the recent studies using SPM techniques for real-space observations of the chemical reactions induced by LSP.
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Affiliation(s)
- Emiko Kazuma
- Surface and Interface Science Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
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24
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Zhang J, Hodes G, Jin Z, Liu S(F. All‐Inorganic CsPbX
3
Perovskite Solar Cells: Progress and Prospects. Angew Chem Int Ed Engl 2019; 58:15596-15618. [DOI: 10.1002/anie.201901081] [Citation(s) in RCA: 314] [Impact Index Per Article: 62.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Jingru Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy Technology School of Materials Science & Engineering Shaanxi Normal University Xi'an 710119 P. R. China
| | - Gary Hodes
- Department of Materials and Interfaces Weizmann Institute of Science Rehovot 76100 Israel
| | - Zhiwen Jin
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou University Lanzhou 730000 P. R. China
| | - Shengzhong (Frank) Liu
- Dalian National Laboratory for Clean Energy, iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
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25
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Zhang J, Hodes G, Jin Z, Liu S(F. Anorganische CsPbX
3
‐Perowskit‐Solarzellen: Fortschritte und Perspektiven. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901081] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Jingru Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy Technology School of Materials Science & Engineering Shaanxi Normal University Xi'an 710119 P. R. China
| | - Gary Hodes
- Department of Materials and Interfaces Weizmann Institute of Science Rehovot 76100 Israel
| | - Zhiwen Jin
- School of Physical Science and Technology & Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou University Lanzhou 730000 P. R. China
| | - Shengzhong (Frank) Liu
- Dalian National Laboratory for Clean Energy, iChEM Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
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26
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Li F, Wei J, Liao G, Guo C, Huang Y, Zhang Q, Jin X, Jiang S, Tang Q, Li Q. Quaternary quantum dots with gradient valence band for all-inorganic perovskite solar cells. J Colloid Interface Sci 2019; 549:33-41. [PMID: 31015054 DOI: 10.1016/j.jcis.2019.04.052] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 04/03/2019] [Accepted: 04/17/2019] [Indexed: 11/30/2022]
Abstract
The severe interface charge recombination caused by the large energy difference between perovskite material and carbon electrode significantly limits the further performance improvement of the all-inorganic perovskite solar cells (PSCs). We apply innovatively multilayer of quaternary Ag-In-Ga-S (AIGS) quantum dots (QDs) with cascade-like valence bands as hole-transport materials to assemble all-inorganic PSCs, and the resultant all-inorganic PSCs exhibit a power conversion efficiency (PCE) of 8.46%, which is enhanced by 20.9% in comparison with 7% for the pristine device. The high performance of the PSCs indicates that sequential layers of AIGS QDs with cascade-like energy levels can facilitate the charge separation, reduce the barrier the holes crossing and suppress the charge recombination. Stack of QDs with cascade-like energy levels provide solution-processed PSCs with a new method to enhance device performance.
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Affiliation(s)
- Feng Li
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Jiahu Wei
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Guoqing Liao
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, PR China
| | - Chenyang Guo
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Yan Huang
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Qin Zhang
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Xiao Jin
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China; School of Physics Science and Technology, Lingnan Normal University, Zhanjiang 524048, PR China
| | - Shuiqing Jiang
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Qunwei Tang
- Institute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou 510632, PR China.
| | - Qinghua Li
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang 330063, PR China; School of Physics Science and Technology, Lingnan Normal University, Zhanjiang 524048, PR China.
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27
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Wei X, Liu J, Liu H, Lei X, Qian H, Zeng H, Meng F, Deng W. Large-Scale Ligand-Free Synthesis of Homogeneous Core–Shell Quantum-Dot-Modified Cs4PbBr6 Microcrystals. Inorg Chem 2019; 58:10620-10624. [DOI: 10.1021/acs.inorgchem.9b01980] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiangfeng Wei
- Future Energy Laboratory, School of Materials Science and Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Jiehua Liu
- Future Energy Laboratory, School of Materials Science and Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
- Key Laboratory of Advanced Functional Materials and Devices of Anhui Province, Hefei 230009, China
| | - Han Liu
- Future Energy Laboratory, School of Materials Science and Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xunyong Lei
- Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Haisheng Qian
- Future Energy Laboratory, School of Materials Science and Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Hualing Zeng
- Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Fancheng Meng
- Future Energy Laboratory, School of Materials Science and Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Weiqiao Deng
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023 China
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28
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Xu Z, Tang X, Liu Y, Zhang Z, Chen W, Liu K, Yuan Z. CsPbBr 3 Quantum Dot Films with High Luminescence Efficiency and Irradiation Stability for Radioluminescent Nuclear Battery Application. ACS APPLIED MATERIALS & INTERFACES 2019; 11:14191-14199. [PMID: 30919617 DOI: 10.1021/acsami.9b02425] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Highly luminescent CsPbBr3 perovskite quantum dots (QDs) are very attractive for applications in power-generating devices. The CsPbBr3 QD solution and its corresponding solid films were satisfactorily prepared. The obtained QDs were characterized by various techniques such as transmission electron microscopy, X-ray diffraction, ultraviolet-visible spectrophotometry, and photoluminescence and radioluminescence spectroscopy. The performance of the CsPbBr3 QD films as an energy conversion material in radioluminescent nuclear batteries was analyzed and discussed. The output performance of different nuclear batteries based on CsPbBr3 QD films was compared and the feasibility and advantages of using them as radioluminescent layers were investigated. On this basis, a long-term equivalent service behavior study was conducted to evaluate the irradiation stability of the CsPbBr3 radioluminescent layer and predict the service life of this type of nuclear battery. The distribution state and penetration depth of hydrogen ions in the films were analyzed and evaluated using physics simulation software. Optical and electrical characteristics confirmed that this perovskite material could offer an efficient, stable, and scalable solution for energy conversion and photoelectric detection in the future.
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Affiliation(s)
- Zhiheng Xu
- Department of Nuclear Science and Engineering , Nanjing University of Aeronautics and Astronautics , Nanjing 211106 , China
| | - Xiaobin Tang
- Department of Nuclear Science and Engineering , Nanjing University of Aeronautics and Astronautics , Nanjing 211106 , China
| | - Yunpeng Liu
- Department of Nuclear Science and Engineering , Nanjing University of Aeronautics and Astronautics , Nanjing 211106 , China
| | - Zhengrong Zhang
- Department of Nuclear Science and Engineering , Nanjing University of Aeronautics and Astronautics , Nanjing 211106 , China
| | - Wang Chen
- Department of Nuclear Science and Engineering , Nanjing University of Aeronautics and Astronautics , Nanjing 211106 , China
| | - Kai Liu
- Department of Nuclear Science and Engineering , Nanjing University of Aeronautics and Astronautics , Nanjing 211106 , China
| | - Zicheng Yuan
- Department of Nuclear Science and Engineering , Nanjing University of Aeronautics and Astronautics , Nanjing 211106 , China
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29
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Wang Y, Chen K, Hao H, Yu G, Zeng B, Wang H, Zhang F, Wu L, Li J, Xiao S, He J, Zhang Y, Zhang H. Engineering ultrafast charge transfer in a bismuthene/perovskite nanohybrid. NANOSCALE 2019; 11:2637-2643. [PMID: 30698602 DOI: 10.1039/c9nr00058e] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
In this work, 0-dimensional (0D) CsPbBr3 QDs were integrated with 2D bismuthene having ultrafast carrier mobility, to obtain a 0D/2D nanohybrid. Moreover, an excellent charge transfer efficiency (0.53) and an appreciable quenching constant of 2.3 × 105 M-1 were observed. Tuning the ratio of bismuthene in the Bi/perovskite nanohybrid achieved the quantified control of charge transfer efficiency and quenching performance at the interface.
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Affiliation(s)
- Yingwei Wang
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Electronic Science and Technology and college of optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China.
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30
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An efficient guanidinium isothiocyanate additive for improving the photovoltaic performances and thermal stability of perovskite solar cells. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.08.117] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Hermes IM, Hou Y, Bergmann VW, Brabec CJ, Weber SAL. The Interplay of Contact Layers: How the Electron Transport Layer Influences Interfacial Recombination and Hole Extraction in Perovskite Solar Cells. J Phys Chem Lett 2018; 9:6249-6256. [PMID: 30256640 DOI: 10.1021/acs.jpclett.8b02824] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Charge-selective contact layers in perovskite solar cells influence the current density-voltage hysteresis, an effect related to ion migration in the perovskite. As such, fullerene-based electron transport layers (ETLs) suppress hysteresis by reducing the mobile ion concentration. However, the impact of different ETLs on the electronic properties of other constituent device layers remains unclear. In this Kelvin probe force microscopy study, we compared potential distributions of methylammonium lead iodide-based solar cells with two ETLs (planar TiO2 and C60-functionalized self-assembled monolayer) with different hysteretic behavior. We found significant changes in the potential distribution of the organic hole transport layer spiroMeOTAD, suggesting the formation of a neutral spiroMeOTAD/iodide interface due to a reaction between iodide with p-doped spiroMeOTAD in the TiO2 cell. Our results show that the ETL affects not only the mobile ion concentration and the recombination at the perovskite/ETL interface but also the resistance and capacitance of the spiroMeOTAD.
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Affiliation(s)
- Ilka M Hermes
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - Yi Hou
- Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET) , Friedrich-Alexander University Erlangen-Nürnberg , Martensstrasse 7 , 91058 Erlangen , Germany
| | - Victor W Bergmann
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - Christoph J Brabec
- Department of Materials Science and Engineering, Institute of Materials for Electronics and Energy Technology (i-MEET) , Friedrich-Alexander University Erlangen-Nürnberg , Martensstrasse 7 , 91058 Erlangen , Germany
| | - Stefan A L Weber
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
- Institute of Physics , Johannes Gutenberg University Mainz , Duesbergweg 10-14 , 55128 Mainz , Germany
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32
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Chen X, Lai J, Shen Y, Chen Q, Chen L. Functional Scanning Force Microscopy for Energy Nanodevices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1802490. [PMID: 30133000 DOI: 10.1002/adma.201802490] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 06/29/2018] [Indexed: 06/08/2023]
Abstract
Energy nanodevices, including energy conversion and energy storage devices, have become a major cross-disciplinary field in recent years. These devices feature long-range electron and ion transport coupled with chemical transformation, which call for novel characterization tools to understand device operation mechanisms. In this context, recent developments in functional scanning force microscopy techniques and their application in thin-film photovoltaic devices and lithium batteries are reviewed. The advantages of scanning force microscopy, such as high spatial resolution, multimodal imaging, and the possibility of in situ and in operando imaging, are emphasized. The survey indicates that functional scanning force microscopy is making significant contributions in understanding materials and interfaces in energy nanodevices.
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Affiliation(s)
- Xi Chen
- i-Lab, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P. R. China
| | - Junqi Lai
- i-Lab, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P. R. China
| | - Yanbin Shen
- i-Lab, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P. R. China
- School of Nano Technology and Nano Bionics, University of Science and Technology of China (USTC), Hefei, 230026, China
| | - Qi Chen
- i-Lab, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P. R. China
- School of Nano Technology and Nano Bionics, University of Science and Technology of China (USTC), Hefei, 230026, China
| | - Liwei Chen
- i-Lab, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P. R. China
- School of Nano Technology and Nano Bionics, University of Science and Technology of China (USTC), Hefei, 230026, China
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33
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He J, Fang WH, Long R. Unravelling the Effects of A-Site Cations on Nonradiative Electron-Hole Recombination in Lead Bromide Perovskites: Time-Domain ab Initio Analysis. J Phys Chem Lett 2018; 9:4834-4840. [PMID: 30095268 DOI: 10.1021/acs.jpclett.8b02115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Lead bromide perovskites APbBr3 (A = Cs, MA, FA) hold great promise in optoelectronics and photovoltaics. Because the band gaps of the three materials are similar, and also because the A-site cation does not contribute to band edges, one would expect a minor influence of A-site cation on the excited-state lifetime of the perovskites. Experiments defy that expectation. By performing ab initio nonadiabatic (NA) molecular dynamics combined with time-domain density functional simulations, we demonstrate that the nonradiative electron-hole recombination times are in the order FAPbBr3 > MAPbBr3 > CsPbBr3, which are determined by the NA electron-phonon coupling because decoherence times are similar. The simulations show that the larger A-site cation and the smaller NA coupling because larger A-site cation suppresses the Pb-Br cages' motion. The electron-hole recombination is slow, ranging from subnanosecond to nanoseconds, because the NA coupling is small, less than 3 meV, and because decoherence time is slow, less than 7 fs. Both the trend of recombination and the time scales show excellent agreement with experiments. The time-domain atomistic simulations rationalize the experimental observations and advance our understanding of the cations' influence on perovskite excited-state lifetimes.
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Affiliation(s)
- Jinlu He
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education , Beijing Normal University , Beijing 100875 , PR China
| | - Wei-Hai Fang
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education , Beijing Normal University , Beijing 100875 , PR China
| | - Run Long
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education , Beijing Normal University , Beijing 100875 , PR China
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34
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Bella F, Renzi P, Cavallo C, Gerbaldi C. Caesium for Perovskite Solar Cells: An Overview. Chemistry 2018; 24:12183-12205. [DOI: 10.1002/chem.201801096] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Federico Bella
- GAME Lab; Department of Applied Science and Technology (DISAT); Politecnico di Torino; Corso Duca degli Abruzzi 24 10129 Torino Italy
| | - Polyssena Renzi
- Dipartimento di Chimica; Università degli Studi “La Sapienza”; P.le A. Moro 5 00185 Rome Italy
| | - Carmen Cavallo
- Department of Physics (Condensed Matter Physics); Chalmers University of Technology; Chalmersplatsen 1 41296 Gothenburg Sweden
| | - Claudio Gerbaldi
- GAME Lab; Department of Applied Science and Technology (DISAT); Politecnico di Torino; Corso Duca degli Abruzzi 24 10129 Torino Italy
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35
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Axt A, Hermes IM, Bergmann VW, Tausendpfund N, Weber SAL. Know your full potential: Quantitative Kelvin probe force microscopy on nanoscale electrical devices. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:1809-1819. [PMID: 29977714 PMCID: PMC6009372 DOI: 10.3762/bjnano.9.172] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 04/30/2018] [Indexed: 05/26/2023]
Abstract
In this study we investigate the influence of the operation method in Kelvin probe force microscopy (KPFM) on the measured potential distribution. KPFM is widely used to map the nanoscale potential distribution in operating devices, e.g., in thin film transistors or on cross sections of functional solar cells. Quantitative surface potential measurements are crucial for understanding the operation principles of functional nanostructures in these electronic devices. Nevertheless, KPFM is prone to certain imaging artifacts, such as crosstalk from topography or stray electric fields. Here, we compare different amplitude modulation (AM) and frequency modulation (FM) KPFM methods on a reference structure consisting of an interdigitated electrode array. This structure mimics the sample geometry in device measurements, e.g., on thin film transistors or on solar cell cross sections. In particular, we investigate how quantitative different KPFM methods can measure a predefined externally applied voltage difference between the electrodes. We found that generally, FM-KPFM methods provide more quantitative results that are less affected by the presence of stray electric fields compared to AM-KPFM methods.
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Affiliation(s)
- Amelie Axt
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Institute of Physics, Johannes Gutenberg University Mainz, 55099 Mainz, Germany
| | - Ilka M Hermes
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Victor W Bergmann
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Niklas Tausendpfund
- Institute of Physics, Johannes Gutenberg University Mainz, 55099 Mainz, Germany
| | - Stefan A L Weber
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Institute of Physics, Johannes Gutenberg University Mainz, 55099 Mainz, Germany
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36
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He J, Guo M, Long R. Photoinduced Localized Hole Delays Nonradiative Electron-Hole Recombination in Cesium-Lead Halide Perovskites: A Time-Domain Ab Initio Analysis. J Phys Chem Lett 2018; 9:3021-3028. [PMID: 29779376 DOI: 10.1021/acs.jpclett.8b01266] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
All-inorganic perovskites have attracted intense interest as promising photovoltaic materials due to their excellent performance. Using time domain density functional theory combined with nonadiabatic (NA) molecular dynamics, we demonstrate that a photoinduced localized polaron-like hole greatly delays the nonradiative electron-hole recombination relative to the structure with delocalized free charge of the CsPbBr3. This is because localized charge carriers diminish overlap between electron and hole wave functions and decrease the NA coupling by a factor of 6. In addition, polaron formation increases the band gap of CsPbBr3, slowing down recombination further. The smaller NA coupling and larger band gap compete successfully with the longer decoherence time, extending the recombination to tens of nanoseconds. The calculated recombination times show excellent agreement with experiment. Our study reveals the atomistic mechanisms underlying the suppression of recombination upon formation of localized polaron-like holes and advances our understanding of the excited-state dynamics of all-inorganic perovskite solar cells.
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Affiliation(s)
- Jinlu He
- College of Chemistry , Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University , Beijing 100875 , People's Republic of China
| | - Meng Guo
- Shandong Computer Science Center (National Supercomputer Center in Jinan) , Jinan , Shandong Province 250101 , People's Republic of China
| | - Run Long
- College of Chemistry , Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University , Beijing 100875 , People's Republic of China
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37
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Scheidt R, Samu GF, Janáky C, Kamat PV. Modulation of Charge Recombination in CsPbBr 3 Perovskite Films with Electrochemical Bias. J Am Chem Soc 2018; 140:86-89. [PMID: 29129051 PMCID: PMC5765538 DOI: 10.1021/jacs.7b10958] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Indexed: 12/20/2022]
Abstract
The charging of a mesoscopic TiO2 layer in a metal halide perovskite solar cell can influence the overall power conversion efficiency. By employing CsPbBr3 films deposited on a mesoscopic TiO2 film, we have succeeded in probing the influence of electrochemical bias on the charge carrier recombination process. The transient absorption spectroscopy experiments conducted at different applied potentials indicate a decrease in the charge carrier lifetimes of CsPbBr3 as we increase the potential from -0.6 to +0.6 V vs Ag/AgCl. The charge carrier lifetime increased upon reversing the applied bias, thus indicating the reversibility of the photoresponse to charging effects. The ultrafast spectroelectrochemical experiments described here offer a convenient approach to probe the charging effects in perovskite solar cells.
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Affiliation(s)
- Rebecca
A. Scheidt
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Gergely F. Samu
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Physical Chemistry and Materials Science, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary
| | - Csaba Janáky
- Department
of Physical Chemistry and Materials Science, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary
- ELI-ALPS
Research Institute, Dugonics
sq. 13, Szeged H-6720, Hungary
| | - Prashant V. Kamat
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre Dame, Indiana 46556, United States
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Fang S, Li G, Lu Y, Li L. Highly Luminescent CsPbX 3 (X=Cl, Br, I) Nanocrystals Achieved by a Rapid Anion Exchange at Room Temperature. Chemistry 2018; 24:1898-1904. [PMID: 29210127 DOI: 10.1002/chem.201704495] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Indexed: 11/06/2022]
Abstract
Cesium lead halide perovskite (CsPbX3 ) nanocrystals (NCs) exhibit an excellent photoelectric performance, which is directly governed by fine-tuning of the composition and preparation of materials with a special phase structure and morphology. However, it is still facing challenges to achieve highly stable and luminescent CsPbX3 NCs at room temperature. Herein, we report on a novel exchange reaction, in which metal halides MX2 (M=Zn, Mg, Cu, or Ca; X=Cl, Br, or I) solids act as anion source to directly prepare CsPbX3 NCs at room temperature without any pretreatment. Introducing small amount of oleic acid or oleylamine speed up the exchange reaction through different promotion mechanisms. Oleic acid coordinates to the surface of the NCs, which increases the reaction activity, and oleylamine greatly enhances the dissolution of ZnCl2 . XRD and TEM tests demonstrate that the cubic phase structure and the morphology of the parent CsPbX3 were well preserved. Moreover, the band-gap energies and photoluminescence (PL) spectra were readily tunable over the entire visible spectral region of λ=406-685 nm. Our findings could open up the possibilities of using metal halide solids as new anion sources to prepare high-quality CsPbX3 NCs at room temperature.
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Affiliation(s)
- Shaofan Fang
- Fujian Institute of Research in Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P.R. China
| | - Guangshe Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Yantong Lu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P.R. China
| | - Liping Li
- Fujian Institute of Research in Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P.R. China
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