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Leng K, Guo Z, Chen J, Fu Y, Ma R, Yu X, Wang L, Wang Q. PbS/CsPbBr 3 Heterojunction for Broadband Neuromorphic Vision Sensing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7470-7479. [PMID: 38299515 DOI: 10.1021/acsami.3c17935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
Neuromorphic light sensors with analogue-domain image processing capability hold promise for overcoming the energy efficiency limitations and latency of von Neumann architecture-based vision chips. Recently, metal halide perovskites, with strong light-matter interaction, long carrier diffusion length, and exceptional photoelectric conversion efficiencies, exhibit reconfigurable photoresponsivity due to their intrinsic ion migration effect, which is expected to advance the development of visual sensors. However, suffering from a large bandgap, it is challenging to achieve highly tunable responsivity simultaneously with a wide-spectrum response in perovskites, which will significantly enhance the image recognition accuracy through the machine learning algorithm. Herein, we demonstrate a broadband neuromorphic visual sensor from visible (Vis) to near-infrared (NIR) by coupling all-inorganic metal halide perovskites (CsPbBr3) with narrow-bandgap lead sulfide (PbS). The PbS/CsPbBr3 heterostructure is composed of high-quality single crystals of PbS and CsPbBr3. Interestingly, the ion migration of CsPbBr3 with the implementation of an electric field induces the energy band dynamic bending at the interface of the PbS/CsPbBr3 heterojunction, leading to reversible, multilevel, and linearly tunable photoresponsivity. Furthermore, the reconfigurable and broadband photoresponse in the PbS/CsPbBr3 heterojunction allows convolutional neuronal network processing for pattern recognition and edge enhancements from the Vis to the NIR waveband, suggesting the great potential of the PbS/CsPbBr3 heterostructure in artificial intelligent vision sensing.
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Affiliation(s)
- Kangmin Leng
- Department of Physics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Zhiqiang Guo
- Department of Physics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Junming Chen
- Department of Physics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Yao Fu
- Department of Materials, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Ruihua Ma
- Department of Physics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Xuechao Yu
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, Jiangsu, China
| | - Li Wang
- Department of Physics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
| | - Qisheng Wang
- Department of Physics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
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Sun L, Li J, Han J, Meng M, Li B, Jiang M. High-sensitivity self-powered photodetector based on an in-situ prepared CsPbBr 3 microwire/InGaN heterojunction. OPTICS EXPRESS 2023; 31:38744-38760. [PMID: 38017971 DOI: 10.1364/oe.505800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/23/2023] [Indexed: 11/30/2023]
Abstract
Low-dimensional CsPbBr3 perovskite materials have gained widespread attention, derived from their remarkable properties and potential for numerous optoelectronic applications. Herein, the sample of CsPbBr3 microwires were prepared horizontally onto n-type InGaN film substrate using an in-plane solution growth method. The resulting CsPbBr3 microwire/InGaN heterojunction allows for the achievement of a highly sensitive and broadband photodetector. Particularly for the implementation in a self-supplying manner, the best-performing photodetector can achieve a superior On/Off ratio of 4.6×105, the largest responsivity ∼ 800.0 mA/W, a maximum detectivity surpassing 4.6× 1012 Jones, and a high external quantum efficiency approaching 86.5% upon 405 nm light illumination. A rapid response time (∼ 4.48 ms/7.68 ms) was also achieved. The as-designed CsPbBr3 microwire/InGaN heterojunction device without any encapsulation exhibits superior comprehensive stability. Besides, the device featuring as a single pixel imaging unit can readily detect simple images under broadband light illumination with a high spatial resolution, acknowledging its outstanding imaging capability. The robust photodetection properties could be derived from the intense absorption of CsPbBr3 MWs and high-efficiency charge carriers transporting toward the in-situ formed CsPbBr3/InGaN heterointerface. The results may offer an available strategy for the in-situ construction of best-performing low-dimensional perovskite heterojunction optoelectronic devices.
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Tian Y, Li Y, Hu C, Yang Y, Chen D, Shen G. Air-Stable Flexible Photodetector Based on MXene-Cs 3Bi 2I 9 Microplate Schottky Junctions for Weak-Light Detection. ACS APPLIED MATERIALS & INTERFACES 2023; 15:13332-13342. [PMID: 36859765 DOI: 10.1021/acsami.2c22691] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Weak-light detection technology is widely used in various fields, including industry, high-energy physics, precision analysis, and reflection imaging. Metal-semiconductor-metal (MSM) photodetectors demonstrate high detectivity and high response speed and are one of the suitable structures for the preparation of weak-light detectors. However, traditional MSM photodetectors tend to exhibit high dark currents, which are not conducive to performance improvement. Here, a MXene-Cs3Bi2I9-MXene weak-light detector is proposed. Based on the MXene-Cs3Bi2I9 Schottky junctions, the dark current is reduced by 2 orders of magnitude and the responsivity is significantly improved compared with the traditional Cr/Au-Cs3Bi2I9-Cr/Au MSM photodetector. The device demonstrates excellent photodetection capacity with a photoresponsivity of 6.45 A W-1, a specific detectivity of 9.45 × 1011 Jones, and a fast response speed of 0.27/2.32 ms. Especially, the device yielded a superior weak-light detectable limit of 10.66 nW cm-2 and demonstrated excellent optical communication capability. Moreover, such a flexible device shows little degradation in photodetection performance after extreme bending for 4500 cycles, proving remarkable bending endurance and flexibility. The obtained results highlight the great potential of such Cs3Bi2I9/MXene devices as a stable and environmentally friendly candidate for weak-light detection.
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Affiliation(s)
- Yue Tian
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
| | - Ying Li
- School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China
| | - Chuqiao Hu
- School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China
| | - Yaqian Yang
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
| | - Di Chen
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
- School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China
| | - Guozhen Shen
- School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China
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Song X, Jian Y, Wang X, Chen J, Shan Q, Zhang S, Chen Z, Chen X, Zeng H. Hybrid mixed-dimensional WTe 2/CsPbI 3perovskite heterojunction for high-performance photodetectors. NANOTECHNOLOGY 2023; 34:195201. [PMID: 36753757 DOI: 10.1088/1361-6528/acba1c] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Perovskites have showed significant potential for the application in photodetectors due to their outstanding electrical and optical properties. Integrating two-dimensional (2D) materials with perovskites can make full use of the high carrier mobility of 2D materials and strong light absorption of perovskite to realize excellent optoelectrical properties. Here, we demonstrate a photodetector based on the WTe2/CsPbI3heterostructure. The quenching and the shortened lifetime of photoluminescence (PL) for CsPbI3perovskite confirms the efficient charge transfer at the WTe2/CsPbI3heterojunction. After coupled with WTe2, the photoresponsivity of the CsPbI3photodetector is improved by almost two orders of magnitude due to the high-gain photogating effect. The WTe2/CsPbI3heterojunction photodetector reveals a large responsivity of 1157 A W-1and a high detectivity of 2.1 × 1013Jones. The results pave the way for the development of high-performance optoelectronic devices based on 2D materials/perovskite heterojunctions.
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Affiliation(s)
- Xiufeng Song
- MIIT Key Laboratory of Advanced Display Materials and Devices, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Yuxuan Jian
- MIIT Key Laboratory of Advanced Display Materials and Devices, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Xusheng Wang
- MIIT Key Laboratory of Advanced Display Materials and Devices, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Jiawei Chen
- MIIT Key Laboratory of Advanced Display Materials and Devices, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Qingsong Shan
- MIIT Key Laboratory of Advanced Display Materials and Devices, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Shengli Zhang
- MIIT Key Laboratory of Advanced Display Materials and Devices, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Zhanyang Chen
- Shangdong Gemei Tungsten & Molybdenum Material Co. LTD, Weihai 265222, People's Republic of China
| | - Xiang Chen
- MIIT Key Laboratory of Advanced Display Materials and Devices, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
| | - Haibo Zeng
- MIIT Key Laboratory of Advanced Display Materials and Devices, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China
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Huang CY, Li H, Wu Y, Lin CH, Guan X, Hu L, Kim J, Zhu X, Zeng H, Wu T. Inorganic Halide Perovskite Quantum Dots: A Versatile Nanomaterial Platform for Electronic Applications. NANO-MICRO LETTERS 2022; 15:16. [PMID: 36580150 PMCID: PMC9800676 DOI: 10.1007/s40820-022-00983-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 10/31/2022] [Indexed: 05/19/2023]
Abstract
Metal halide perovskites have generated significant attention in recent years because of their extraordinary physical properties and photovoltaic performance. Among these, inorganic perovskite quantum dots (QDs) stand out for their prominent merits, such as quantum confinement effects, high photoluminescence quantum yield, and defect-tolerant structures. Additionally, ligand engineering and an all-inorganic composition lead to a robust platform for ambient-stable QD devices. This review presents the state-of-the-art research progress on inorganic perovskite QDs, emphasizing their electronic applications. In detail, the physical properties of inorganic perovskite QDs will be introduced first, followed by a discussion of synthesis methods and growth control. Afterwards, the emerging applications of inorganic perovskite QDs in electronics, including transistors and memories, will be presented. Finally, this review will provide an outlook on potential strategies for advancing inorganic perovskite QD technologies.
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Affiliation(s)
- Chien-Yu Huang
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Hanchen Li
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Ye Wu
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics and Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China
| | - Chun-Ho Lin
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Xinwei Guan
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Long Hu
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Jiyun Kim
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Xiaoming Zhu
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Haibo Zeng
- MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics and Nanomaterials, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, People's Republic of China.
| | - Tom Wu
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia.
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Chen Y, Xing F, Li W, Sheng Y, Di Y, Gan Z, Liu C. Snapshot multi-frame parallel spectral holographic microscopy based on a reconfigurable optical comb. OPTICS LETTERS 2022; 47:6468-6471. [PMID: 36538464 DOI: 10.1364/ol.479993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/20/2022] [Indexed: 06/17/2023]
Abstract
We present a snapshot multi-frame parallel holographic microscopy system through a reconfigurable optical comb source, which consists of a digital micromirror device (DMD) based spectrum filter system and a spectroscopic Michelson interferometric system. The proposed system allows arbitrarily tuning comb spacing and comb number, and the capturing of multi-frame images without overlap in one exposure. As a result, high-quality spectral holograms can be obtained with less acquisition time. The performance of the system is detailed in the experiment and 45-wavelengths holographic imaging for perovskite micro-platelets is conducted, which proves the system has the ability to realize high-performance four-dimensional (4D) imaging.
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Xing R, Shi P, Wang D, Wu Z, Ge Y, Xing Y, Wei L, Yan S, Tian Y, Bai L, Chen Y. Flexible Self-Powered Weak Light Detectors Based on ZnO/CsPbBr 3/γ-CuI Heterojunctions. ACS APPLIED MATERIALS & INTERFACES 2022; 14:40093-40101. [PMID: 35833831 DOI: 10.1021/acsami.2c05422] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Halide perovskites (HPs) with marvelous optical and electrical properties are regarded as one of the competitive candidates for building next-generation photodetectors (PDs). However, combining their excellent properties with satisfactory long-term robustness is still challenging, ultimately limiting the practical applications of HP-based PDs. Herein, a high vacuum deposition system is employed to fabricate flexible self-powered PDs with a ZnO/CsPbBr3/γ-CuI structure, which shows excellent stability and outstanding performance in weak light detection. Benefiting from the improved crystallinity and optimized device structure, a high detectivity of 8.1 × 1013 Jones and a rapid response speed (rise/decay time of 3.9/1.8 μs) are obtained in this self-powered device. Furthermore, the unencapsulated device exhibits intriguing environmental stability and mechanical flexibility. The photocurrent remains unchanged after 7000 s of continuous operation or 100 bending cycles. Furthermore, a 15 × 15 PD array is fabricated as an image sensor. A high contrast image of the target object can be obtained owing to the high sensitivity and uniformity of the self-powered PDs. These results demonstrate the feasibility and practicality of the ZnO/CsPbBr3/γ-CuI heterojunction for applications in weak light detection and image formation.
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Affiliation(s)
- Ruofei Xing
- School of Physics, and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Peng Shi
- School of Physics, and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Dong Wang
- School of Physics, and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Zhenfa Wu
- School of Physics, and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Yufeng Ge
- School of Physics, and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Yuzhi Xing
- School of Physics, and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Lin Wei
- School of Microelectronics, and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250101, China
| | - Shishen Yan
- School of Physics, and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Yufeng Tian
- School of Physics, and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Lihui Bai
- School of Physics, and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Yanxue Chen
- School of Physics, and State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
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Wang L, Saji SE, Wu L, Wang Z, Chen Z, Du Y, Yu XF, Zhao H, Yin Z. Emerging Synthesis Strategies of 2D MOFs for Electrical Devices and Integrated Circuits. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2201642. [PMID: 35843870 DOI: 10.1002/smll.202201642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Indexed: 06/15/2023]
Abstract
The development of advanced electronic devices is boosting many aspects of modern technology and industry. The ever-increasing demand for advanced electrical devices and integrated circuits calls for the design of novel materials, with superior properties for the improvement of working performance. In this review, a detailed overview of the synthesis strategies of 2D metal organic frameworks (MOFs) acquiring growing attention is presented, as a basis for expansion of novel key materials in electrical devices and integrated circuits. A framework of controllable synthesis routes to be implanted in the synthesis strategies of 2D materials and MOFs is described. In short, the synthesis methods of 2D MOFs are summarized and discussed in depth followed by the illustrations of promising applications relating to various electrical devices and integrated circuits. It is concluded by outlining how 2D MOFs can be synthesized in a simpler, highly efficient, low-cost, and more environmentally friendly way which can open up their applicable opportunities as key materials in advanced electrical devices and integrated circuits, enabling their use in broad aspects of the society.
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Affiliation(s)
- Linjuan Wang
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China
| | - Sandra Elizabeth Saji
- Research School of Chemistry, Australian National University, Acton, ACT, 2601, Australia
| | - Lingjun Wu
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China
| | - Zixuan Wang
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China
| | - Zijian Chen
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China
| | - Yaping Du
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin, 300350, P. R. China
| | - Xue-Feng Yu
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China
| | - Haitao Zhao
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China
| | - Zongyou Yin
- Research School of Chemistry, Australian National University, Acton, ACT, 2601, Australia
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Sheng Y, Chen W, Hu F, Liu C, Di Y, Sheng C, Chen Z, Jia B, Wen X, Gan Z. Mechanism of Photoinduced Phase Segregation in Mixed-Halide Perovskite Microplatelets and Its Application in Micropatterning. ACS APPLIED MATERIALS & INTERFACES 2022; 14:12412-12422. [PMID: 35234446 DOI: 10.1021/acsami.2c00590] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Photoinduced phase segregation (PPS) is considered as a dominant factor that greatly deteriorates the performances of mixed-halide perovskite devices. However, the mechanism of PPS is still under fierce debate. Herein, CsPb(Brx/Cl1-x)3 microplatelets (MPs) with homogeneous and heterogeneous surfaces are obtained by controlling the growth conditions. Under continuous irradiation, a new photoluminescence (PL) band at 516 nm gradually appears in the heterogeneous MPs, accompanied with the decreased emission of the mixed phase at 480 nm, revealing the occurrence of PPS, while the photoirradiation only leads to slight PL dimming without PPS in the homogeneous MPs. The direct correlation between PPS and the structural heterogeneity indicates that the localized electric field-induced drift (LEFD) of halide ions/carriers is responsible for the PPS. In situ microfluorescence images evidence that the migration of halide ions is directed by the structural heterogeneity-induced localized electric field. Our refined model not only consolidates that PPS can be suppressed by eliminating the defects but also reveals that PPS can be directed by the distribution of defects. Therefore, a fluorescence micropatterning technique is developed based on PPS.
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Affiliation(s)
- Yuhang Sheng
- Center for Future Optoelectronic Functional Materials, School of Computer and Electronic Information/School of Artificial Intelligence, Nanjing Normal University, Nanjing 210023, China
| | - Weijian Chen
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
| | - Fengrui Hu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Cihui Liu
- Center for Future Optoelectronic Functional Materials, School of Computer and Electronic Information/School of Artificial Intelligence, Nanjing Normal University, Nanjing 210023, China
| | - Yunsong Di
- Center for Future Optoelectronic Functional Materials, School of Computer and Electronic Information/School of Artificial Intelligence, Nanjing Normal University, Nanjing 210023, China
| | - Chong Sheng
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Zhihui Chen
- Key Laboratory of Advanced Transducers and Intelligent Control Systems, Ministry of Education and Shanxi Province, College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China
| | - Baohua Jia
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Xiaoming Wen
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Zhixing Gan
- Center for Future Optoelectronic Functional Materials, School of Computer and Electronic Information/School of Artificial Intelligence, Nanjing Normal University, Nanjing 210023, China
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Cesaria M, Mazzeo M, Quarta G, Aziz MR, Nobile C, Carallo S, Martino M, Calcagnile L, Caricato AP. Pulsed Laser Deposition of CsPbBr 3 Films: Impact of the Composition of the Target and Mass Distribution in the Plasma Plume. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3210. [PMID: 34947561 PMCID: PMC8708087 DOI: 10.3390/nano11123210] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 11/19/2021] [Accepted: 11/20/2021] [Indexed: 11/18/2022]
Abstract
All-inorganic cesium lead bromine (CsPbBr3) perovskites have gained a tremendous potential in optoelectronics due to interesting photophysical properties and much better stability than the hybrid counterparts. Although pulsed laser deposition (PLD) is a promising alternative to solvent-based and/or thermal deposition approaches due to its versatility in depositing multi-elemental materials, deep understanding of the implications of both target composition and PLD mechanisms on the properties of CsPbBr3 films is still missing. In this paper, we deal with thermally assisted preparation of mechano-chemically synthesized CsPbBr3 ablation targets to grow CsPbBr3 films by PLD at the fluence 2 J/cm2. We study both Cs rich- and stoichiometric PbBr2-CsBr mixture-based ablation targets and point out compositional deviations of the associated films resulting from the mass distribution of the PLD-generated plasma plume. Contrary to the conventional meaning that PLD guarantees congruent elemental transfer from the target to the substrate, our study demonstrates cation off-stoichiometry of PLD-grown CsPbBr3 films depending on composition and thermal treatment of the ablation target. The implications of the observed enrichment in the heavier element (Pb) and deficiency in the lighter element (Br) of the PLD-grown films are discussed in terms of optical response and with the perspective of providing operative guidelines and future PLD-deposition strategies of inorganic perovskites.
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Affiliation(s)
- Maura Cesaria
- Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, 73100 Lecce, Italy; (M.M.); (M.R.A.); (M.M.); (A.P.C.)
| | - Marco Mazzeo
- Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, 73100 Lecce, Italy; (M.M.); (M.R.A.); (M.M.); (A.P.C.)
- CNR NANOTEC-Institute of Nanotechnology, c/o Campus Ecotekne, via Monteroni, 73100 Lecce, Italy; (C.N.); (S.C.)
| | - Gianluca Quarta
- National Institute of Nuclear Physics (INFN), 73100 Lecce, Italy; (G.Q.); (L.C.)
- CEDAD (Center of Applied Physics, Dating and Diagnostics), University of Salento-Cittadella della Ricerca SS.7, Km 7300, 72100 Brindisi, Italy
| | - Muhammad Rizwan Aziz
- Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, 73100 Lecce, Italy; (M.M.); (M.R.A.); (M.M.); (A.P.C.)
| | - Concetta Nobile
- CNR NANOTEC-Institute of Nanotechnology, c/o Campus Ecotekne, via Monteroni, 73100 Lecce, Italy; (C.N.); (S.C.)
| | - Sonia Carallo
- CNR NANOTEC-Institute of Nanotechnology, c/o Campus Ecotekne, via Monteroni, 73100 Lecce, Italy; (C.N.); (S.C.)
| | - Maurizio Martino
- Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, 73100 Lecce, Italy; (M.M.); (M.R.A.); (M.M.); (A.P.C.)
| | - Lucio Calcagnile
- National Institute of Nuclear Physics (INFN), 73100 Lecce, Italy; (G.Q.); (L.C.)
- CEDAD (Center of Applied Physics, Dating and Diagnostics), University of Salento-Cittadella della Ricerca SS.7, Km 7300, 72100 Brindisi, Italy
| | - Anna Paola Caricato
- Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, 73100 Lecce, Italy; (M.M.); (M.R.A.); (M.M.); (A.P.C.)
- National Institute of Nuclear Physics (INFN), 73100 Lecce, Italy; (G.Q.); (L.C.)
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Mandal A, Ghosh A, Ghosh D, Bhattacharyya S. Photodetectors with High Responsivity by Thickness Tunable Mixed Halide Perovskite Nanosheets. ACS APPLIED MATERIALS & INTERFACES 2021; 13:43104-43114. [PMID: 34482693 DOI: 10.1021/acsami.1c13452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Chemical transformation of typically "nonlayered" phases into two-dimensional structures remains a formidable task. Among the thickness tunable CsPbX3 (X = Br, Br/I, I) nanosheets (NSs), CsPbBr1.5I1.5 NSs with a thickness of ∼4.9 nm have structural stability superior to ∼6.8 nm CsPbI3 NSs and better hole mobility than ∼3.7 nm CsPbBr3 NSs. Moving beyond the much-explored CsPbBr3 photodetectors, we demonstrate a sharp improvement of the photodetection of CsPbBr1.5I1.5 NS devices by thickening the NSs to ∼6.1 nm through combining 8-carbon and 18-carbon ligand surfactants. Thereby, the responsivity increases up to one of the highest values of 3313 A W-1 at 1.5 V (and 3946 A W-1 at 2 V) with detectivity of 1.6 × 1011 Jones at 1.5 V, due to the increase in carrier mobility up to 7.9 × 10-4 cm2 V-1 s-1. The better device performance of the NSs than 8.6-13.9 nm nanocubes (NCs) is due to their planarity which facilitates in-plane mobilization of the charge carriers.
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Affiliation(s)
- Arnab Mandal
- Department of Chemical Sciences, and Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur-741246, India
| | - Anima Ghosh
- Department of Chemical Sciences, and Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur-741246, India
| | - Dibyendu Ghosh
- Department of Chemical Sciences, and Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur-741246, India
| | - Sayan Bhattacharyya
- Department of Chemical Sciences, and Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur-741246, India
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Sachith BM, Okamoto T, Ghimire S, Umeyama T, Takano Y, Imahori H, Biju V. Long-Range Interfacial Charge Carrier Trapping in Halide Perovskite-C 60 and Halide Perovskite-TiO 2 Donor-Acceptor Films. J Phys Chem Lett 2021; 12:8644-8651. [PMID: 34472862 DOI: 10.1021/acs.jpclett.1c01909] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Interfacial electron transfer across perovskite-electron acceptor heterojunctions plays a significant role in the power-conversion efficiency of perovskite solar cells. Thus, electron donor-acceptor thin films of halide perovskite nanocrystals receive considerable attention. Nevertheless, understanding and optimizing distance- and thickness-dependent electron transfer in perovskite-electron acceptor heterojunctions are important. We reveal the distance-dependent and diffusion-controlled interfacial electron transfer across donor-acceptor heterojunction films formed by formamidinium or cesium lead bromide (FAPbBr3/CsPbBr3) perovskite nanocrystals with TiO2/C60. Self-assembled nanocrystal films prepared from FAPbBr3 show a longer photoluminescence lifetime than a solution, showing a long-range carrier migration. The acceptors quench the photoluminescence intensity but not the lifetime in a solution, revealing a static electron transfer. Conversely, the electron transfer in the films changes from dynamic to static by moving toward the donor-acceptor interface. While radiative recombination dominates the electron transfer at 800 μm or farther, the acceptors scavenge the photogenerated carriers within 100 μm. This research highlights the significance of interfacial electron transfer in perovskite films.
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Affiliation(s)
| | - Takuya Okamoto
- Research Institute for Electronic Science, Hokkaido University, N20W10, Sapporo, Hokkaido 001-0020, Japan
| | - Sushant Ghimire
- Institute of Physics, University of Rostock, Albert-Einstein-Straβe 23, 18059 Rostock, Germany
| | - Tomokazu Umeyama
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2201, Japan
| | - Yuta Takano
- Graduate School of Environmental Science, Hokkaido University, N10W5, Sapporo, Hokkaido 060-810, Japan
- Institute of Physics, University of Rostock, Albert-Einstein-Straβe 23, 18059 Rostock, Germany
| | - Hiroshi Imahori
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku Kyoto 615-8510, Japan
| | - Vasudevanpillai Biju
- Graduate School of Environmental Science, Hokkaido University, N10W5, Sapporo, Hokkaido 060-810, Japan
- Institute of Physics, University of Rostock, Albert-Einstein-Straβe 23, 18059 Rostock, Germany
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Wang HP, Li S, Liu X, Shi Z, Fang X, He JH. Low-Dimensional Metal Halide Perovskite Photodetectors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2003309. [PMID: 33346383 DOI: 10.1002/adma.202003309] [Citation(s) in RCA: 140] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/21/2020] [Indexed: 05/24/2023]
Abstract
Metal halide perovskites (MHPs) have been a hot research topic due to their facile synthesis, excellent optical and optoelectronic properties, and record-breaking efficiency of corresponding optoelectronic devices. Nowadays, the development of miniaturized high-performance photodetectors (PDs) has been fueling the demand for novel photoactive materials, among which low-dimensional MHPs have attracted burgeoning research interest. In this report, the synthesis, properties, photodetection performance, and stability of low-dimensional MHPs, including 0D, 1D, 2D layered and nonlayered nanostructures, as well as their heterostructures are reviewed. Recent advances in the synthesis approaches of low-dimensional MHPs are summarized and the key concepts for understanding the optical and optoelectronic properties related to the PD applications of low-dimensional MHPs are introduced. More importantly, recent progress in novel PDs based on low-dimensional MHPs is presented, and strategies for improving the performance and stability of perovskite PDs are highlighted. By discussing recent advances, strategies, and existing challenges, this progress report provides perspectives on low-dimensional MHP-based PDs in the future.
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Affiliation(s)
- Hsin-Ping Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - Siyuan Li
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Xinya Liu
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Zhifeng Shi
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou, 450052, P. R. China
| | - Xiaosheng Fang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
| | - Jr-Hau He
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
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Chang J, Jiang L, Wang G, Zhao W, Huang Y, Chen H. Lead-free perovskite compounds CsSn 1-xGe xI 3-yBr y explored for superior visible-light absorption. Phys Chem Chem Phys 2021; 23:14449-14456. [PMID: 34180927 DOI: 10.1039/d1cp00024a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hybrid perovskites are favoured over other numerous optoelectronic materials, thanks to their rapidly enhanced power conversion efficiency (PCE) and facile processing. At present, future developments are seriously hampered by the high toxicity of heavy metals and poor stability. Inorganic lead-free perovskites, CsSn1-xGexI3-yBry, are herein explored for superior optical performance by first-principles calculations based on density functional theory (DFT). It is unveiled that the valence band maximum (VBM) is mainly occupied by the p-orbit of halide ions, while the conduction band minimum (CBM) is composed of the p-orbit of the metal ion. Moreover, Bader charge analysis shows that CsSn0.5Ge0.5I3 corresponds to the most obvious charge transfer compared to the others. The defect formation energy indicates that perovskite compounds CsSn1-xGexI3-yBry, are more easily synthesized than the series CsSn1-xGexI3, and the physically accessible area is also determined in the coordinate system defined by the chemical potential change of the host atoms, ΔμSn and ΔμI. Additionally, the absorption spectra show that among the doped compounds of the form CsSn0.5Ge0.5I3-yBry, perovskite CsSn0.5Ge0.5I2Br is superior in terms of optical response in the visible-light range. The results shed a new light on the study of highly efficient and stable lead-free perovskite-based solar cells (PSCs).
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Affiliation(s)
- Junli Chang
- School of Physical Science and Technology, Southwest University, Chongqing 400715, People's Republic of China.
| | - Liping Jiang
- School of Physical Science and Technology, Southwest University, Chongqing 400715, People's Republic of China.
| | - Guangzhao Wang
- Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology of Chongqing, School of Electronic Information Engineering, Yangtze Normal University, Chongqing 408100, People's Republic of China
| | - Wei Zhao
- School of Physical Science and Technology, Southwest University, Chongqing 400715, People's Republic of China.
| | - Yuhong Huang
- School of Physical Science and Technology, Southwest University, Chongqing 400715, People's Republic of China.
| | - Hong Chen
- School of Physical Science and Technology, Southwest University, Chongqing 400715, People's Republic of China. and Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People's Republic of China
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15
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Zhang Z, Zhang W, Jiang Q, Wei Z, Deng M, Chen D, Zhu W, Zhang J, You H. Toward High-Performance Electron/Hole-Transporting-Layer-Free, Self-Powered CsPbIBr 2 Photodetectors via Interfacial Engineering. ACS APPLIED MATERIALS & INTERFACES 2020; 12:6607-6614. [PMID: 31927909 DOI: 10.1021/acsami.9b19075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Self-powered photodetectors (PDs) with inorganic lead halide perovskites hold multiple traits of high sensitivity, fast response, independence from external power supply, and excellent sustainability and stability, thus holding a great promise for practical applications. However, they generally contain high-temperature-processed electron-transporting layers (ETLs) and high-cost, unstable hole-transporting layers (HTLs) coupled with noble metal electrodes, which bring significant obstacles of production cost and stability for their potential commercialization. Herein, we demonstrate the building of high-performance HTL/ETL-free, self-powered CsPbIBr2 PD with simplified architecture of fluorine-doped tin oxide (FTO)/CsPbIBr2/carbon upon interfacial modification by polyethyleneimine (PEI). The optimized PD yields a dark current of 2.03 × 10-9 A, peak responsivity (R) of 0.32 A/W, maximum specific detectivity (D*) of 3.74 × 1012 Jones, and response time of 1.21 μs. These figures of merit are far beyond those of the one prepared without PEI modification and even the PD containing TiO2 ETL. Hence, our work suggests a highly feasible route to develop self-powered PDs with significantly simplified fabrication and a reduced production cost.
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Affiliation(s)
- Zeyulin Zhang
- Guangxi Key Laboratory of Optoelectronic Information Processing, School of Electronic Engineering and Automation , Guilin University of Electronic Technology , Guilin , Guangxi 541004 , China
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics , Xidian University , Xi'an , Shanxi 710071 , China
| | - Wentao Zhang
- Guangxi Key Laboratory of Optoelectronic Information Processing, School of Electronic Engineering and Automation , Guilin University of Electronic Technology , Guilin , Guangxi 541004 , China
| | - Qubo Jiang
- Guangxi Key Laboratory of Optoelectronic Information Processing, School of Electronic Engineering and Automation , Guilin University of Electronic Technology , Guilin , Guangxi 541004 , China
| | - Ziming Wei
- Guangxi Key Laboratory of Optoelectronic Information Processing, School of Electronic Engineering and Automation , Guilin University of Electronic Technology , Guilin , Guangxi 541004 , China
| | - Mingyu Deng
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics , Xidian University , Xi'an , Shanxi 710071 , China
| | - Dandan Chen
- College of Science , Xi'an Shiyou University , Xi'an , Shaanxi 710065 , China
| | - Weidong Zhu
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics , Xidian University , Xi'an , Shanxi 710071 , China
| | - Jincheng Zhang
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics , Xidian University , Xi'an , Shanxi 710071 , China
| | - Hailong You
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics , Xidian University , Xi'an , Shanxi 710071 , China
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Tang X, Zhou H, Pan X, Liu R, Wu D, Wang H. All-Inorganic Halide Perovskite Alloy Nanowire Network Photodetectors with High Performance. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4843-4848. [PMID: 31895540 DOI: 10.1021/acsami.9b21666] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Organic-inorganic hybrid lead halide perovskites have attracted much attention in the photoelectric field due to their excellent characteristics, such as a tunable band gap, simple fabrication process, and high photoelectric conversion efficiency. However, the commercialization of the perovskite-based devices still faces many challenges, one of which is the inclusion of the toxic lead. Herein, we demonstrated a two-step solution method for synthesizing tin-based perovskite nanowires (NWs) with their application in photodetectors (PDs). By changing the halide exchange time and the Sn content in the precursor, the dark current of the CsPbxSn1-x(BryI1-y)3 perovskite NW PDs increased with increasing content of tin and decreased with increasing Br concentration, and the lowest dark current with a value of 0.672 nA at 1 V was achieved for the perovskite alloy NW PDs synthesized with 0.5 mg mL-1 SnI2. Our optimized perovskite alloy NW PDs showed high performance with a linear dynamic range of up to 120 dB, a rising/falling time of 4.25/4.82 ms, and a detectivity of 2 × 1010 Jones. In addition, our Sn-based perovskite NW devices could maintain good performance after storing in air for 30 days. These results demonstrated good practical application for the Sn-based perovskite NW devices.
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Affiliation(s)
- Xiaoming Tang
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Faculty of Physics & Electronic Science , Hubei University , Wuhan 430062 , P.R. China
| | - Hai Zhou
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Faculty of Physics & Electronic Science , Hubei University , Wuhan 430062 , P.R. China
| | - Xiyan Pan
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Faculty of Physics & Electronic Science , Hubei University , Wuhan 430062 , P.R. China
| | - Ronghuan Liu
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Faculty of Physics & Electronic Science , Hubei University , Wuhan 430062 , P.R. China
| | - Dingjun Wu
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Faculty of Physics & Electronic Science , Hubei University , Wuhan 430062 , P.R. China
| | - Hao Wang
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Faculty of Physics & Electronic Science , Hubei University , Wuhan 430062 , P.R. China
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Study of Metal-Semiconductor-Metal CH 3NH 3PbBr 3 Perovskite Photodetectors Prepared by Inverse Temperature Crystallization Method. SENSORS 2020; 20:s20010297. [PMID: 31948055 PMCID: PMC6982973 DOI: 10.3390/s20010297] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 12/27/2019] [Accepted: 01/03/2020] [Indexed: 11/16/2022]
Abstract
Numerous studies have addressed the use of perovskite materials for fabricating a wide range of optoelectronic devices. This study employs the deposition of an electron transport layer of C60 and an Ag electrode on CH3NH3PbBr3 perovskite crystals to complete a photodetector structure, which exhibits a metal–semiconductor–metal (MSM) type structure. First, CH3NH3PbBr3 perovskite crystals were grown by inverse temperature crystallization (ITC) in a pre-heated circulator oven. This oven was able to supply uniform heat for facilitating the growth of high-quality and large-area crystals. Second, the different growth temperatures for CH3NH3PbBr3 perovskite crystals were investigated. The electrical, optical, and morphological characteristics of the perovskite crystals were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), ultraviolet-visible spectroscopy, and photoluminescence (PL). Finally, the CH3NH3PbBr3 perovskite crystals were observed to form a contact with the Ag/C60 as the photodetector, which revealed a responsivity of 24.5 A/W.
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Du P, Li J, Wang L, Liu J, Li S, Liu N, Li Y, Zhang M, Gao L, Ma Y, Tang J. Vacuum-Deposited Blue Inorganic Perovskite Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2019; 11:47083-47090. [PMID: 31736305 DOI: 10.1021/acsami.9b17164] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Perovskite light-emitting diodes (PeLEDs) have drawn great research attention because of their outstanding electroluminescence performance by solution processing. PeLEDs made by thermal evaporation are relatively rarely explored but are compatible to existing organic light-emitting diode industrial lines. Blue-emitting PeLEDs are all based on organic-containing perovskites, rather than more stable all-inorganic perovskites because of their poor solubility, too fast crystallization, uneven discrete films, and unattainable pure blue emission. Here, we report all-inorganic, vacuum-processed blue PeLEDs. High-throughput combinatorial approaches are employed to optimize Cs-Pb-Br-Cl composition in our dual-source co-evaporation system to achieve the balance between film photoluminescence and injection efficiency. The as-deposited perovskite films demonstrated excellent intrinsic stability against heat, UV-light, and humidity attack. A series of PeLEDs were obtained covering the standard blue spectral region with a best luminance of 121 cd/m2 and an external quantum efficiency of 0.38%. We believe that the vacuum processing strategy demonstrated here provides a very promising alternative way to produce efficient and stable all-inorganic blue-emitting PeLEDs.
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Mo X, Li X, Dai G, He P, Sun J, Huang H, Yang J. All-inorganic perovskite CsPbBr 3 microstructures growth via chemical vapor deposition for high-performance photodetectors. NANOSCALE 2019; 11:21386-21393. [PMID: 31674616 DOI: 10.1039/c9nr06682a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Perovskite cesium lead halide (CsPbBr3) has attracted considerable attention due to its excellent optoelectronic properties and superior stability against moisture, oxygen, light, and heat. In this work, the micro-environment controlled chemical vapor deposition (CVD) method has been adopted to synthesize high-quality single-crystalline CsPbBr3 microstructures, including microwires, microplates and triangular pyramids. Moreover, the structure-activity relationship between the material microstructures and the device properties is illustrated. The results show that photodetectors based on a single horizontal CsPbBr3 microwire exhibit a high responsivity (312.2 A W-1) and a fast response time of 5.8 ms. Photodetectors based on a single CsPbBr3 microplate exhibit a responsivity of 1.74 A W-1 and a response of 10 ms. These results indicate that the CsPbBr3 microwire photodetector is characterized by a higher photodetector performance when compared to the microplate due to its excellent crystallization quality and the Fabry-Pérot cavity effect in the microwire. Furthermore, the flexible CsPbBr3 microwire photodetector was demonstrated on a mica substrate. The results show that the photocurrent can be maintained at 90% after 3000 cycles at a bending radius of 2.5 mm. This work demonstrates the structure-activity photodetector performance, which is essential to develop a full understanding about high-performance optoelectronic devices based on all-inorganic lead halide perovskite materials.
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Affiliation(s)
- Xindi Mo
- School of Physics and Electronics, Central South University, Changsha 410083, Hunan, China.
| | - Xing Li
- School of Physics and Electronics, Central South University, Changsha 410083, Hunan, China.
| | - Guozhang Dai
- School of Physics and Electronics, Central South University, Changsha 410083, Hunan, China.
| | - Pei He
- School of Physics and Electronics, Central South University, Changsha 410083, Hunan, China.
| | - Jia Sun
- School of Physics and Electronics, Central South University, Changsha 410083, Hunan, China.
| | - Han Huang
- School of Physics and Electronics, Central South University, Changsha 410083, Hunan, China.
| | - Junliang Yang
- School of Physics and Electronics, Central South University, Changsha 410083, Hunan, China.
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Liu X, Cao L, Guo Z, Li Y, Gao W, Zhou L. A Review of Perovskite Photovoltaic Materials' Synthesis and Applications via Chemical Vapor Deposition Method. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E3304. [PMID: 31614476 PMCID: PMC6829303 DOI: 10.3390/ma12203304] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 09/28/2019] [Accepted: 10/08/2019] [Indexed: 11/16/2022]
Abstract
Perovskite photovoltaic materials (PPMs) have emerged as one of superstar object for applications in photovoltaics due to their excellent properties-such as band-gap tunability, high carrier mobility, high optical gain, astrong nonlinear response-as well as simplicity of their integration with other types of optical and electronic structures. Meanwhile, PPMS and their constructed devices still present many challenges, such as stability, repeatability, and large area fabrication methods and so on. The key issue is: how can PPMs be prepared using an effective way which most of the readers care about. Chemical vapor deposition (CVD) technology with high efficiency, controllability, and repeatability has been regarded as a cost-effective road for fabricating high quality perovskites. This paper provides an overview of the recent progress in the synthesis and application of various PPMs via the CVD method. We mainly summarize the influence of different CVD technologies and important experimental parameters (temperature, pressure, growth environment, etc.) on the stabilization, structural design, and performance optimization of PPMS and devices. Furthermore, current challenges in the synthesis and application of PPMS using the CVD method are highlighted with suggested areas for future research.
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Affiliation(s)
- Xia Liu
- Department of Physics and Optoelectronic Engineering, Weifang University, Weifang 261061, Shandong, China.
- Chinese Academy of Sciences Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, Jiangsu, China.
- Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University, Singapore 637371, Singapore.
| | - Lianzhen Cao
- Department of Physics and Optoelectronic Engineering, Weifang University, Weifang 261061, Shandong, China.
- Chinese Academy of Sciences Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, Jiangsu, China.
- Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University, Singapore 637371, Singapore.
| | - Zhen Guo
- Chinese Academy of Sciences Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, Jiangsu, China.
- Shandong Guo Ke Medical Technology Development Co., Ltd., Jinan 250001, Shandong, China.
- Zhongke Mass Spectrometry (Tianjin) Medical Technology Co., Ltd., Tianjin 300399, China.
| | - Yingde Li
- Department of Physics and Optoelectronic Engineering, Weifang University, Weifang 261061, Shandong, China.
| | - Weibo Gao
- Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University, Singapore 637371, Singapore.
| | - Lianqun Zhou
- Chinese Academy of Sciences Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, Jiangsu, China.
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