1
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Wang Y, Wang C, Men L, Hu Q, Xiao J. Colloidal Synthesis of Hollow Double Perovskite Nanocrystals and Their Applications in X-ray Imaging. Inorg Chem 2024; 63:5734-5742. [PMID: 38478658 DOI: 10.1021/acs.inorgchem.4c00280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Rare earth-based halide double perovskites are regarded as an emerging class of X-ray scintillation materials. However, the majority of related scintillator applications are still focused on single crystal and powder systems; the application of nanocrystal (NC) scintillators is rarely reported. Here, we present the synthesis of high-purity Cs2NaTbCl6 NCs by an improved hot-injection method. Interestingly, hollow Cs2NaTbCl6 NCs are observed, the monitoring of the growth process indicates that micrometer-sized NaCl is the initial product, and then the NaCl would convert into Cs2NaTbCl6 NCs through the diffusion of Cs+ and Tb3+ into NaCl lattice, and the faster outward diffusion of Na+ results in the formation of hollow NCs. The double perovskite NCs exhibit green light emission, and the photoluminescence intensity can be significantly enhanced through Ce3+ doping. In particular, the Cs2NaTbCl6:5%Ce3+ scintillator exhibits a linear response and a low detection limit of 79.09 nGy/s when exposed to X-rays. Furthermore, a flexible scintillator film for X-ray imaging is prepared by mixing NCs with polymer, showing a high spatial resolution imaging capability of 10 lp/mm. This work provides a new strategy for hollow perovskite NCs and may shed light on the synthesis of related hollow NCs and their applications in X-ray detection.
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Affiliation(s)
- Ying Wang
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
| | - Chao Wang
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
| | - Luxuan Men
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
| | - Qingsong Hu
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang 441053, China
| | - Jiawen Xiao
- Beijing Key Lab of Microstructure and Property of Advanced Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
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2
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Roy M, Sykora M, Aslam M. Chemical Aspects of Halide Perovskite Nanocrystals. Top Curr Chem (Cham) 2024; 382:9. [PMID: 38430313 DOI: 10.1007/s41061-024-00453-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 01/24/2024] [Indexed: 03/03/2024]
Abstract
Halide perovskite nanocrystals (HPNCs) are currently among the most intensely investigated group of materials. Structurally related to the bulk halide perovskites (HPs), HPNCs are nanostructures with distinct chemical, optical, and electronic properties and significant practical potential. One of the keys to the effective exploitation of the HPNCs in advanced technologies is the development of controllable, reproducible, and scalable methods for preparation of materials with desired compositions, phases, and shapes and low defect content. Another important condition is a quantitative understanding of factors affecting the chemical stability and the optical and electronic properties of HPNCs. Here we review important recent developments in these areas. Following a brief historical prospective, we provide an overview of known chemical methods for preparation of HPNCs and approaches used to control their composition, phase, size, and shape. We then review studies of the relationship between the chemical composition and optical properties of HPNCs, degradation mechanisms, and effects of charge injection. Finally, we provide a short summary and an outlook. The aim of this review is not to provide a comprehensive summary of all relevant literature but rather a selection of highlights, which, in the subjective view of the authors, provide the most significant recent observations and relevant analyses.
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Affiliation(s)
- Mrinmoy Roy
- Department of Physics, Indian Institute of Technology Bombay, Mumbai, 400076, India
- Laboratory for Advanced Materials, Faculty of Natural Sciences, Comenius University, Bratislava, 84104, Slovakia
| | - Milan Sykora
- Laboratory for Advanced Materials, Faculty of Natural Sciences, Comenius University, Bratislava, 84104, Slovakia
| | - M Aslam
- Department of Physics, Indian Institute of Technology Bombay, Mumbai, 400076, India.
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3
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Maziviero FV, Melo DMA, Medeiros RLBA, Oliveira ÂAS, Macedo HP, Braga RM, Morgado E. Advancements and Prospects in Perovskite Solar Cells: From Hybrid to All-Inorganic Materials. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:332. [PMID: 38392705 PMCID: PMC10892290 DOI: 10.3390/nano14040332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/05/2023] [Accepted: 01/10/2024] [Indexed: 02/24/2024]
Abstract
Hybrid perovskites, materials composed of metals and organic substances in their structure, have emerged as potential materials for the new generation of photovoltaic cells due to a unique combination of optical, excitonic and electrical properties. Inspired by sensitization techniques on TiO2 substrates (DSSC), CH3NH3PbBr3 and CH3NH3PbI3 perovskites were studied as a light-absorbing layer as well as an electron-hole pair generator. Photovoltaic cells based on per-ovskites have electron and hole transport layers (ETL and HTL, respectively), separated by an ac-tive layer composed of perovskite itself. Major advances subsequently came in the preparation methods of these devices and the development of different architectures, which resulted in an efficiency exceeding 23% in less than 10 years. Problems with stability are the main barrier to the large-scale production of hybrid perovskites. Partially or fully inorganic perovskites appear promising to circumvent the instability problem, among which the black perovskite phase CsPbI3 (α-CsPbI3) can be highlighted. In more advanced studies, a partial or total substitution of Pb by Ge, Sn, Sb, Bi, Cu or Ti is proposed to mitigate potential toxicity problems and maintain device efficiency.
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Affiliation(s)
- Fernando Velcic Maziviero
- Postgraduate Program in Chemistry, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil;
- Laboratório de Tecnologia Ambiental—LABTAM, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil; (R.L.B.A.M.); (Â.A.S.O.); (H.P.M.); (R.M.B.)
| | - Dulce M. A. Melo
- Postgraduate Program in Chemistry, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil;
- Laboratório de Tecnologia Ambiental—LABTAM, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil; (R.L.B.A.M.); (Â.A.S.O.); (H.P.M.); (R.M.B.)
- Postgraduate Program in Materials Science and Engineering, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | - Rodolfo L. B. A. Medeiros
- Laboratório de Tecnologia Ambiental—LABTAM, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil; (R.L.B.A.M.); (Â.A.S.O.); (H.P.M.); (R.M.B.)
- Postgraduate Program in Materials Science and Engineering, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | - Ângelo A. S. Oliveira
- Laboratório de Tecnologia Ambiental—LABTAM, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil; (R.L.B.A.M.); (Â.A.S.O.); (H.P.M.); (R.M.B.)
| | - Heloísa P. Macedo
- Laboratório de Tecnologia Ambiental—LABTAM, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil; (R.L.B.A.M.); (Â.A.S.O.); (H.P.M.); (R.M.B.)
- Postgraduate Program in Materials Science and Engineering, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | - Renata M. Braga
- Laboratório de Tecnologia Ambiental—LABTAM, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil; (R.L.B.A.M.); (Â.A.S.O.); (H.P.M.); (R.M.B.)
- Agricultural School of Jundiaí, Federal University of Rio Grande do Norte, Macaíba 59280-000, Brazil
- Postgraduate Program in Chemical Engineering, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | - Edisson Morgado
- PETROBRAS R&D Centre (CENPES), Rio de Janeiro 21941-915, Brazil;
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4
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He Y, Li Z, Liu M, Liu S, Fu J, Zhang Y, Li Q, Tong Y, Zheng Z. Enhanced performance of BiI 3-incorporated CsPbBr 3 solar cells. Dalton Trans 2023; 52:17308-17314. [PMID: 37937488 DOI: 10.1039/d3dt03055e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
CsPbBr3 all-inorganic perovskite solar cells (PSCs) have been extensively investigated due to their remarkable stability. However, their limited film quality and wide bandgap result in a low photoelectric conversion efficiency (PCE). In this study, BiI3 was incorporated into CsPbBr3 films to synergistically enhance light absorption and film quality. It was found that the partial substitution of Pb2+ and Br- with Bi3+ and I- in CsPbBr3 improved film quality, enhanced light absorption, and facilitated charge transfer and extraction. The device incorporating BiI3-incorporated CsPbBr3 as a light absorbing layer achieved an efficiency of 9.54%, exhibiting a significant enhancement of 19.4% compared to the undoped device. This work provides a new incorporating strategy that collaboratively improves light absorption and film quality.
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Affiliation(s)
- Yuqi He
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, China.
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng 475004, China
| | - Zhenyang Li
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, China.
- Institute of Materials and Engineering, North China University of Water Resources and Electric Power, Zhengzhou, Henan 450045, China.
| | - Manying Liu
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, China.
| | - Saiqi Liu
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, China.
| | - Junjie Fu
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, China.
| | - Yange Zhang
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, China.
| | - Qiuye Li
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng 475004, China
| | - Yuping Tong
- Institute of Materials and Engineering, North China University of Water Resources and Electric Power, Zhengzhou, Henan 450045, China.
| | - Zhi Zheng
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering, Xuchang University, Henan 461000, China.
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5
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Chaudhary M, Karmakar A, Mishra V, Bhattacharya A, Mumbaraddi D, Mar A, Michaelis VK. Effect of aliovalent bismuth substitution on structure and optical properties of CsSnBr 3. Commun Chem 2023; 6:75. [PMID: 37076629 PMCID: PMC10115781 DOI: 10.1038/s42004-023-00874-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 04/04/2023] [Indexed: 04/21/2023] Open
Abstract
Aliovalent substitution of the B component in ABX3 metal halides has often been proposed to modify the band gap and thus the photovoltaic properties, but details about the resulting structure have remained largely unknown. Here, we examine these effects in Bi-substituted CsSnBr3. Powder X-ray diffraction (XRD) and solid-state 119Sn, 133Cs and 209Bi nuclear magnetic resonance (NMR) spectroscopy were carried out to infer how Bi substitution changes the structure of these compounds. The cubic perovskite structure is preserved upon Bi-substitution, but with disorder in the B site occurring at the atomic level. Bi atoms are randomly distributed as they substitute for Sn atoms with no evidence of Bi segregation. The absorption edge in the optical spectra shifts from 1.8 to 1.2 eV upon Bi-substitution, maintaining a direct band gap according to electronic structure calculations. It is shown that Bi-substitution improves resistance to degradation by inhibiting the oxidation of Sn.
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Affiliation(s)
- Madhusudan Chaudhary
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Abhoy Karmakar
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Vidyanshu Mishra
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Amit Bhattacharya
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Dundappa Mumbaraddi
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Arthur Mar
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Vladimir K Michaelis
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada.
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6
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Chen J, Wu M, Ni J, Ni C. Br vacancy engineering in Cs 3Bi 2Br 9 for photocatalytic NO oxidation under visible light. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:56188-56197. [PMID: 36917387 DOI: 10.1007/s11356-023-25993-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
Photocatalysis using the visible light of the sun is an environmentally friendly method of eliminating the NOx pollutant from the ambient air. Although Cs3Bi2Br9, a semiconductor with a band gap of 2.54 eV, may be a strong absorber of visible light, its photocatalysis towards the abatement of NOx is unknown. In this study, Cs3Bi2-xPbxBr9-x (0 ≤ x ≤ 0.0789) are used for the photocatalytic oxidation of NOx. A significant NO oxidation efficiency (80%) is observed over Cs3Bi2-xPbxBr9-x (x = 0.0443) under visible light, which is attributable to the Br vacancy (VBr) brought about by Pb2+ doping. The presence of VBr increased the ionic selectivity of in the oxidized NO. At higher Pb doping level, two HONOs adsorbed on the VBr, linked, and then reduced by hot electrons to produce N2O22-. The di-azo coupling could passivate the activation of NO on the VBr. This work advances the defect engineering of halide for the photo-driving solid-gas reaction in air.
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Affiliation(s)
- Jingwen Chen
- College of Resources and Environment, Southwest University, Chongqing, 400715, China
| | - Menglin Wu
- College of Resources and Environment, Southwest University, Chongqing, 400715, China
| | - Jiupai Ni
- College of Resources and Environment, Southwest University, Chongqing, 400715, China
- National Base of International S&T Collaboration On Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Chongqing, 400716, China
| | - Chengsheng Ni
- College of Resources and Environment, Southwest University, Chongqing, 400715, China.
- National Base of International S&T Collaboration On Water Environmental Monitoring and Simulation in Three Gorges Reservoir Region, Chongqing, 400716, China.
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7
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Murzin AO, Samsonova AY, Stoumpos CC, Selivanov NI, Emeline AV, Kapitonov YV. Diffuse Reflectance Spectroscopy with Dilution: A Powerful Method for Halide Perovskites Study. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28010350. [PMID: 36615542 PMCID: PMC9823841 DOI: 10.3390/molecules28010350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/15/2022] [Accepted: 12/25/2022] [Indexed: 01/04/2023]
Abstract
Halide perovskites and their low-dimensional analogs are promising semiconductor materials for solar cells, LEDs, lasers, detectors and other applications in the area of photonics. The most informative optical property of semiconductor photonics materials is the absorption spectrum enabling observation of the fundamental absorption edge, exciton structure, defect-related bands, etc. Traditionally, in the study of halide perovskites, this spectrum is obtained by absorption spectroscopy of thin films or diffuse reflectance spectroscopy of powders. The first method is applicable only to compounds with the developed thin film deposition technology, and in the second case, a large absorption coefficient narrows the observations down to the sample transparency region. In this paper, we suggest the diffuse reflectance spectroscopy with dilution as a method for obtaining the full-range absorption spectrum from halide perovskite powders, and demonstrate its application to practically important cases.
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Affiliation(s)
- Aleksei O. Murzin
- Photonics of Crystals Laboratory, Saint Petersburg State University, Ulyanovskaya d.1, St. Petersburg 198504, Russia
| | - Anna Yu. Samsonova
- Photonics of Crystals Laboratory, Saint Petersburg State University, Ulyanovskaya d.1, St. Petersburg 198504, Russia
| | - Constantinos C. Stoumpos
- Photonics of Crystals Laboratory, Saint Petersburg State University, Ulyanovskaya d.1, St. Petersburg 198504, Russia
- Department of Materials Science and Technology, University of Crete, Voutes, GR-70013 Heraklion, Greece
- Correspondence:
| | - Nikita I. Selivanov
- Photonics of Crystals Laboratory, Saint Petersburg State University, Ulyanovskaya d.1, St. Petersburg 198504, Russia
| | - Alexei V. Emeline
- Photonics of Crystals Laboratory, Saint Petersburg State University, Ulyanovskaya d.1, St. Petersburg 198504, Russia
| | - Yury V. Kapitonov
- Photonics of Crystals Laboratory, Saint Petersburg State University, Ulyanovskaya d.1, St. Petersburg 198504, Russia
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8
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Bhosale MK, Kazi AI, Pawar KK, Shingate RS, Kadam AD, Patil NJ, Sheikh AD. Eco-friendly MA 3Bi 2I 9perovskite thin films based ammonia sensor. NANOTECHNOLOGY 2022; 34:065501. [PMID: 36347030 DOI: 10.1088/1361-6528/aca0f7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
Organic-inorganic perovskite halides (OIPH) have emerged as a wonder material with growing interest in sensors detecting various toxic gases. However, lead toxicity represents a potential obstacle, and therefore finding lead-free cost-effective compatible materials for gas sensing applications is essential. In this work, methylammonium bismuth iodide i.e. (CH3NH3)3Bi2I9(MABI) perovskite thin films-based ammonia (NH3) sensor was synthesized using an antisolvent-assisted one-step spin coating method. The MABI sensor shows a linear relationship between the responsivity and concentration of NH3with excellent reversibility, high gas responsivity, and humidity stability. The MABI thin-film sensor exhibits a maximum gas response of 24%, a short response/recovery time i.e. 0.14 s /8.15 s and good reversibility at 6 ppm of NH3. It was observed that MABI thin films based sensors have excellent ambient stability over a couple of months. This work reveals that it is feasible to design high-performance gas sensors based on environmentally-friendly Bi-based OIPH materials.
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Affiliation(s)
- M K Bhosale
- School of Nanoscience and Technology, Shivaji University, Kolhapur, 416004, Maharashtra, India
| | - A I Kazi
- School of Nanoscience and Technology, Shivaji University, Kolhapur, 416004, Maharashtra, India
| | - K K Pawar
- School of Nanoscience and Technology, Shivaji University, Kolhapur, 416004, Maharashtra, India
| | - R S Shingate
- School of Nanoscience and Technology, Shivaji University, Kolhapur, 416004, Maharashtra, India
| | - A D Kadam
- School of Nanoscience and Technology, Shivaji University, Kolhapur, 416004, Maharashtra, India
| | - N J Patil
- School of Nanoscience and Technology, Shivaji University, Kolhapur, 416004, Maharashtra, India
| | - Arif D Sheikh
- School of Nanoscience and Technology, Shivaji University, Kolhapur, 416004, Maharashtra, India
- Centre for Nanoscience and Nanotechnology, Amity University Maharashtra, Somathne, Mumbai, 410206, Maharashtra, India
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9
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Straus DB, Cava RJ. Tuning the Band Gap in the Halide Perovskite CsPbBr 3 through Sr Substitution. ACS APPLIED MATERIALS & INTERFACES 2022; 14:34884-34890. [PMID: 35867850 DOI: 10.1021/acsami.2c09275] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The ability to continuously tune the band gap of a semiconductor allows its optical properties to be precisely tailored for specific applications. We demonstrate that the band gap of the halide perovskite CsPbBr3 can be continuously widened through homovalent substitution of Sr2+ for Pb2+ using solid-state synthesis, creating a material with the formula CsPb1-xSrxBr3 (0 ≤ x ≤ 1). Sr2+ and Pb2+ form a solid solution in CsPb1-xSrxBr3. Pure CsPbBr3 has a band gap of 2.29(2) eV, which increases to 2.64(3) eV for CsPb0.25Sr0.75Br3. The increase in band gap is clearly visible in the color change of the materials and is also confirmed by a shift in the photoluminescence. Density-functional theory calculations support the hypothesis that Sr incorporation widens the band gap without introducing mid-gap defect states. These results demonstrate that homovalent B-site alloying can be a viable method to tune the band gap of simple halide perovskites for absorptive and emissive applications such as color-tunable light-emitting diodes, tandem solar cells, and photodetectors.
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Affiliation(s)
- Daniel B Straus
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544 United States
| | - Robert J Cava
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544 United States
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10
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Wu Q, Li J, Xue S, Zhao Y, Liu F, Huo Q, Mi J, Guan C, Cong W, Lu Y, Ren J. Bandgap Engineering of Cesium Lead Halide Perovskite CsPbBr
3
through Cu Doping. ADVANCED THEORY AND SIMULATIONS 2022. [DOI: 10.1002/adts.202200190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Qiaoqian Wu
- School of Space Science and Physics Shandong University Weihai 264209 China
| | - Jinping Li
- School of Space Science and Physics Shandong University Weihai 264209 China
| | - Shaoming Xue
- School of Space Science and Physics Shandong University Weihai 264209 China
| | - Yiting Zhao
- School of Space Science and Physics Shandong University Weihai 264209 China
| | - Fangchao Liu
- School of Space Science and Physics Shandong University Weihai 264209 China
| | - Qiuhong Huo
- School of Space Science and Physics Shandong University Weihai 264209 China
- Physical‐Chemical Materials Analytical and Testing Center Shandong University Weihai 264209 China
| | - Jun Mi
- School of Space Science and Physics Shandong University Weihai 264209 China
- Physical‐Chemical Materials Analytical and Testing Center Shandong University Weihai 264209 China
| | - ChengBo Guan
- School of Space Science and Physics Shandong University Weihai 264209 China
| | - Wei‐Yan Cong
- School of Space Science and Physics Shandong University Weihai 264209 China
| | - Ying‐Bo Lu
- School of Space Science and Physics Shandong University Weihai 264209 China
- Physical‐Chemical Materials Analytical and Testing Center Shandong University Weihai 264209 China
| | - Junfeng Ren
- School of Physics and Electronics Shandong Normal University Jinan 250014 China
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11
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Marjit K, Ghosh G, Biswas RK, Ghosh S, Pati SK, Patra A. Modulating the Carrier Relaxation Dynamics in Heterovalently (Bi 3+) Doped CsPbBr 3 Nanocrystals. J Phys Chem Lett 2022; 13:5431-5440. [PMID: 35679509 DOI: 10.1021/acs.jpclett.2c01270] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Manipulation of intrinsic carrier relaxation is crucial for designing efficient lead halide perovskite nanocrystal (NC) based optoelectronic devices. The influence of heterovalent Bi3+ doping on the ultrafast carrier dynamics and hot carrier (HC) cooling relaxation of CsPbBr3 NCs has been studied using femtosecond transient absorption spectroscopy and first-principles calculations. The initial HC temperature and LO phonon decay time point to a faster HC relaxation rate in the Bi3+-doped CsPbBr3 NCs. The first-principles calculations disclose the acceleration of carrier relaxation in Bi3+-doped CsPbBr3 NCs due to the appearance of localized bands (antitrap states) within the conduction band. The higher Born effective charges (Z*) and higher soft energetic optical phonon density of states cause higher electron-phonon scattering rates in the Bi-doped CsPbBr3 system, which is responsible for the faster HC cooling rate in doped systems.
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Affiliation(s)
- Kritiman Marjit
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Goutam Ghosh
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Raju K Biswas
- Theoretical Sciences Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore 560064, India
| | - Srijon Ghosh
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Swapan K Pati
- Theoretical Sciences Unit, School of Advanced Materials (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore 560064, India
| | - Amitava Patra
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India
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12
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Huang H, Verhaeghe D, Weng B, Ghosh B, Zhang H, Hofkens J, Steele JA, Roeffaers MBJ. Metal Halide Perovskite Based Heterojunction Photocatalysts. Angew Chem Int Ed Engl 2022; 61:e202203261. [PMID: 35347831 DOI: 10.1002/anie.202203261] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Indexed: 11/12/2022]
Abstract
With fascinating photophysical properties and a strong potential to utilize solar energy, metal halide perovskites (MHPs) have become a prominent feature within photocatalysis research. However, the effectiveness of single MHP photocatalysts is relatively poor. The introduction of a second component to form a heterojunction represents a well-established route to accelerate carrier migration and boost reaction rates, thus increasing the photoactivity. Recently, there have been several scientific advances related to the design of MHP-based heterojunction photocatalysts, including Schottky, type II, and Z-scheme heterojunctions. In this Review, we systematically discuss and critically appraise recent developments in MHP-based heterojunction photocatalysis. In addition, the techniques for identifying the type of active heterojunctions are evaluated and we conclude by briefly outlining the ongoing challenges and future directions for promising photocatalysts based on MHP heterojunctions.
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Affiliation(s)
- Haowei Huang
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Davy Verhaeghe
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Bo Weng
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Biplab Ghosh
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Hongwen Zhang
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Johan Hofkens
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001, Heverlee, Belgium
| | - Julian A Steele
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Maarten B J Roeffaers
- cMACS, Department of Microbial and Molecular Systems, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
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13
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Duong TM, Aldakov D, Pouget S, Ling WL, Dang LS, Nogues G, Reiss P. Room-Temperature Doping of CsPbBr 3 Nanocrystals with Aluminum. J Phys Chem Lett 2022; 13:4495-4500. [PMID: 35575469 DOI: 10.1021/acs.jpclett.2c01021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
B-site doping is an emerging strategy for tuning the emission wavelength of cesium lead halide ABX3 nanocrystals. We present a simple method for the postsynthetic doping of CsPbBr3 nanocrystals with aluminum at room temperature by exposing them to a solution of AlBr3 in dibromomethane. Despite the much smaller ionic radius of Al3+ compared to that of Pb2+, nominal doping levels in a range from 8.1% to 24.3% were obtained when increasing the Al/Pb feed ratio from 1 to 4.5. Al3+ introduction leads to a hypsochromic shift of the photoluminescence (PL) emission of the CsPbBr3 nanocrystals. The PL peak position is highly stable over at least 6 months and tunable in a range of 510 to 480 nm by increasing the doping level. Structural analyses revealed a linear correlation between the PL energy and the lattice parameter with a slope of -1.96 eV/Å.
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Affiliation(s)
- Tuan M Duong
- Univ. Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, STEP, 38000 Grenoble, France
| | - Dmitry Aldakov
- Univ. Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, STEP, 38000 Grenoble, France
| | - Stéphanie Pouget
- Univ. Grenoble Alpes, CEA, IRIG, MEM, SGX, 38000 Grenoble, France
| | - Wai Li Ling
- Univ. Grenoble Alpes, CEA, CNRS, IBS, 38000 Grenoble, France
| | - Le Si Dang
- Univ. Grenoble Alpes, CNRS, Institut Néel, 38000 Grenoble, France
| | - Gilles Nogues
- Univ. Grenoble Alpes, CNRS, Institut Néel, 38000 Grenoble, France
| | - Peter Reiss
- Univ. Grenoble Alpes, CEA, CNRS, IRIG, SyMMES, STEP, 38000 Grenoble, France
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14
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Huang H, Verhaeghe D, Weng B, Ghosh B, Zhang H, Hofkens J, Steele JA, Roeffaers MB. Metal Halide Perovskite‐Based Heterojunction Photocatalysts. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Haowei Huang
- KU Leuven: Katholieke Universiteit Leuven Department of Microbial and Molecular Systems 3001 Leuven BELGIUM
| | - Davy Verhaeghe
- KU Leuven: Katholieke Universiteit Leuven Department of Microbial and Molecular Systems BELGIUM
| | - Bo Weng
- KU Leuven: Katholieke Universiteit Leuven Department of Microbial and Molecular Systems 3000 Leuven BELGIUM
| | - Bipab Ghosh
- KU Leuven: Katholieke Universiteit Leuven Department of Microbial and Molecular Systems BELGIUM
| | - Hongwen Zhang
- KU Leuven: Katholieke Universiteit Leuven Department of Microbial and Molecular Systems BELGIUM
| | - Johan Hofkens
- KU Leuven: Katholieke Universiteit Leuven Department of Chemistry BELGIUM
| | - Julian A. Steele
- KU Leuven: Katholieke Universiteit Leuven Department of Microbial and Molecular Systems BELGIUM
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15
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Improving the Structural, Optical and Photovoltaic Properties of Sb- and Bi- Co-Doped MAPbBr3 Perovskite Solar Cell. COATINGS 2022. [DOI: 10.3390/coatings12030386] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We prepared 1% Bi- and (0, 0.5%, 1% and 1.5%) Sb- co-doped MAPbBr3 films by a sol-gel spin coating technique. For the first time, the detailed structural properties including grain size, dislocation line density, d-spacing, lattice parameters, and volume of co-doped MAPbBr3 films have been investigated. XRD confirmed the cubic structure of MAPbBr3 with high crystallinity and co-doping of Bi and Sb. The 1% Bi and 1% Sb co-doping have a surprising effect in MAPbBr3 structures, such as large grain size (59.5 nm), d-space value (6.23 Å), small dislocation line dislocation (2.79 × 1018 m−2), and small lattice parameters (a = b = c = 6.3 Å) and volume of unit cell. The detailed optical properties, including energy band gap (Eg), refractive index (n), extinction coefficient (k) and dielectric constant (Ɛ), which are very important for optoelectronics applications, were investigated by UV-Vis spectroscopy. The film of 1% Bi and 1% Sb co-doped MAPbBr3 showed good optical response including small Eg, high n, low value of k, high real and low imaginary parts of dielectric constant, making it good for solar cell applications. Solar cells were fabricated from these films. The cell fabricated with pure MAPbBr3 has Jsc of 8.72 mA cm−2, FF of 0.66, Voc of 1.29 V, and η of 7.5%. All the parameters increased by co-doping of Bi and Sb in MAPbBr3 film. The cell fabricated with 1% Bi and 1% Sb co-doped MAPbBr3 film had high current density (12.12 mA-cm−2), open circuit voltage (Voc), fill factor (0.73), and high efficiency (11.6%). This efficiency was 65% larger than a pure MAPbBr3-based solar cell.
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16
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Sabino FP, Zunger A, Dalpian GM. Intrinsic doping limitations in inorganic lead halide perovskites. MATERIALS HORIZONS 2022; 9:791-803. [PMID: 34904985 DOI: 10.1039/d1mh01371h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Inorganic halide perovskites (HP's) of the CsPbX3 (X = I, Br, Cl) type have reached prominence in photovoltaic solar cell efficiencies, leading to the expectation that they are a new class of semiconductors relative to the traditional ones. Peculiarly, they have shown an asymmetry in their ability to be doped by holes vs. electrons. Indeed, both structural defect-induced doping as well as extrinsic impurity-induced doping strangely often result in HP's in a unipolar doping (dominantly p-type) with low free carriers' concentration. This raises the question whether such doping limitations presents just a temporary setback due to insufficient optimization of the doping process, or perhaps this represents an intrinsic, physically-mandated bottleneck. In this paper we study three fundamental Design Principles (DP's) for ideal doping, applying them via density functional doping theory to these HP's, thus identifying the violated DP that explains the doping limitations and asymmetry in these HP's. Here, the target DP are: (i) requires that the thermodynamic transition level between different charge states induced by the dopants must ideally be energetically shallow both for donors (n-type) or acceptors (p-type); DP-(ii) requires that the 'Fermi level pinning energies' for electrons E(n)pin and holes E(p)pin (being the limiting value of the Fermi level before a structural defect that compensate the doping forms spontaneously) should ideally be located inside the conduction band for n-type doping and inside the valence band for p-type doping. DP-(iii) requires that the doping-induced shift in equilibrium Fermi energy ΔE(n)F towards the conduction band for n-type doping (shift of ΔE(p)F towards the valence band, for p-type doping) to be sufficiently large. We find that, even though in HP's based on Br and Cl there are numerous shallow level dopants that satisfy DP-(i), in contrast DP-(ii) is satisfied only for holes and DP-(iii) fails for both holes and electrons, being the ultimate bottleneck for the n-type doping in Iodide HP's. This suggests an intrinsic mechanism for doping limitations in this class of semiconductors in terms of recognized physical mechanisms.
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Affiliation(s)
- Fernando P Sabino
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-580 Santo André, SP, Brazil.
| | - Alex Zunger
- Renewable and Sustainable Energy Institute, University of Colorado, Boulder, Colorado 80309, USA
| | - Gustavo M Dalpian
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-580 Santo André, SP, Brazil.
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17
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Effect of heterovalent doping on photostimulated defect formation in CsPbBr3. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Yang C, Guo F, Zhang Y, Zhong X, Feng J, Wang N, Wang J. Luminescence Change from Orange to Blue for Zero-Dimensional Cs 2 InCl 5 (H 2 O) Metal Halides in Water and a New Post-doping Method. Chem Asian J 2021; 16:1619-1625. [PMID: 33932257 DOI: 10.1002/asia.202100293] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/28/2021] [Indexed: 12/26/2022]
Abstract
Zero-dimensional metal halides have attracted much attention due to their attractive photoelectric properties. Here, we propose a new strategy of synthesizing metal halides crystals by recrystallization in water. The as-synthesized Cs2 InCl5 (H2 O)-orange crystals are dissolved and recrystallized in water (Cs2 InCl5 (H2 O)-blue), with its photoluminescence (PL) changing from orange to blue, both of which are derived from self-trapping excitons (STEs). The time-resolved photoluminescence (TRPL) spectrum of Cs2 InCl5 (H2 O)-blue shows that it has an ultralong lifetime up to milliseconds (τ=52.98 ms), which is expected to be applied in biological sensors. The photoluminescence quantum yield (PLQY) increases from 2.25% to 11.61% in the self-assembly process. By using a post-doping method, the PL of crystals turns into red when we introduce Mn2+ as dopant while there is no obvious change upon using a traditional solvent-thermal method. Recrystallization in water and post-doping provide a new perspective for the synthesis and doping of metal halides.
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Affiliation(s)
- Chuang Yang
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Fengwan Guo
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China.,Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Hubei University, Wuhan, 430062, P. R. China
| | - Yu Zhang
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Xinxin Zhong
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Jing Feng
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Nan Wang
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Juan Wang
- Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, P. R. China.,Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei University, Wuhan, 430062, P. R. China
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19
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Dehnhardt N, Luy J, Klement P, Schipplick L, Chatterjee S, Tonner R, Heine J. Gemischte Gruppe‐14‐15‐Metallate als Modellverbindungen für dotierte Bleihalogenidperowskite. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Natalie Dehnhardt
- Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften WZMW Philipps-Universität Marburg Hans-Meerwein-Straße 35043 Marburg Deutschland
| | - Jan‐Niclas Luy
- Fakultät für Chemie und Pharmazie Universität Regensburg Universitätsstraße 31 93053 Regensburg Deutschland
| | - Philip Klement
- I. Physikalisches Institut & Zentrum für Materialforschung (ZfM) Justus Liebig Universität Gießen Heinrich-Buff-Ring 16 35392 Gießen Deutschland
| | - Luca Schipplick
- Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften WZMW Philipps-Universität Marburg Hans-Meerwein-Straße 35043 Marburg Deutschland
| | - Sangam Chatterjee
- I. Physikalisches Institut & Zentrum für Materialforschung (ZfM) Justus Liebig Universität Gießen Heinrich-Buff-Ring 16 35392 Gießen Deutschland
| | - Ralf Tonner
- Fakultät für Chemie und Pharmazie Universität Regensburg Universitätsstraße 31 93053 Regensburg Deutschland
- Derzeitige Adresse: Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie Universität Leipzig Linnéstraße 2 04103 Leipzig Deutschland
| | - Johanna Heine
- Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften WZMW Philipps-Universität Marburg Hans-Meerwein-Straße 35043 Marburg Deutschland
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20
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Dehnhardt N, Luy J, Klement P, Schipplick L, Chatterjee S, Tonner R, Heine J. Mixed Group 14–15 Metalates as Model Compounds for Doped Lead Halide Perovskites. Angew Chem Int Ed Engl 2021. [PMCID: PMC7898470 DOI: 10.1002/anie.202014696] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Doping and alloying are valuable tools for modifying and enhancing the properties and performance of lead halide perovskites. However, the effects of heterovalent doping with Sb3+ and Bi3+ cations are still a matter of current investigation. Due to the different charge of the dopants compared to the constituting Pb2+ ions, a simultaneous creation of defects is unavoidable and the influence of these defects and the actual metal substitution become entangled. Herein, we present the first 14–15 iodido metalates, (BED)4PbE2I16 (BED=N‐benzylethylenediammonium; E=Sb (1), Bi (2)), which are model compounds for doped lead iodide perovskites and display surprisingly low band gaps of 2.01 (1) and 1.88 eV (2). Quantum chemical investigations show that this stems from a good electronic match between the PbI6 and EI6 units of the compounds. Our results provide a model system for doped perovskites, but also represent the first examples of a promising new class of metal halide materials.
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Affiliation(s)
- Natalie Dehnhardt
- Department of Chemistry and Material Sciences Center Philipps-Universität Marburg Hans-Meerwein-Strasse 35043 Marburg Germany
| | - Jan‐Niclas Luy
- Faculty of Chemistry and Pharmacy University of Regensburg Universitätsstrasse 31 93053 Regensburg Germany
| | - Philip Klement
- Institute of Experimental Physics I and Center for Materials Research (ZfM) Justus Liebig University Giessen Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Luca Schipplick
- Department of Chemistry and Material Sciences Center Philipps-Universität Marburg Hans-Meerwein-Strasse 35043 Marburg Germany
| | - Sangam Chatterjee
- Institute of Experimental Physics I and Center for Materials Research (ZfM) Justus Liebig University Giessen Heinrich-Buff-Ring 16 35392 Giessen Germany
| | - Ralf Tonner
- Faculty of Chemistry and Pharmacy University of Regensburg Universitätsstrasse 31 93053 Regensburg Germany
- Current address: Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie Universität Leipzig Linnéstrasse 2 04103 Leipzig Germany
| | - Johanna Heine
- Department of Chemistry and Material Sciences Center Philipps-Universität Marburg Hans-Meerwein-Strasse 35043 Marburg Germany
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21
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Pan Y, Wang X, Zhao J, Xu Y, Li Y, Li Q, Zhang X, Zhao Z, Zhu Z, Jing C, Jun W, Emeka Elemike E, Bae BS, Lei W. Photodiodes based on a MAPbBr 3/Bi 3+-doped MAPbCl 3 single crystals heterojunction for the X-ray detection. CrystEngComm 2021. [DOI: 10.1039/d1ce00406a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The epitaxially fabricated MAPbBr3/Bi3+-doped MAPbCl3 PSCs pN heterojunction shows advanced X-ray detection performance with decreased dark current density and faster response time under relatively high external reverse voltage.
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22
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Zheng C, Yu C, Yu H, Zheng H, Yin L, Fu N, Ding B, Mao L, Zhang J. Photogenerated charge separation and recombination path modification in monocline Lu 2WO 6via lattice transition and Bi-O antibonding states. Dalton Trans 2021; 50:6659-6666. [PMID: 33908549 DOI: 10.1039/d1dt00700a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Monoclinic Lu2WO6 undergoes diphase-to-perovskite BiLuWO6 transition via selective occupancy of Bi in three Lu sites. The transformation mechanism, process, and structure stabilities are revealed by variable cell nudged elastic band method, video, and phonon spectrum. Lattice transition brings about photogenerated charge separation in BiLuWO6. This is verified by indirect band gap transition, high electron migration rate, weak exciton binding energy, large photocurrent response, and small impedance. The electron-hole life time is elongated to produce abundant superoxide and hydroxyl radicals for the degradation of rhodamine B and phenol molecules. Bi-O antibonding states serve as immediate energy levels to change the recombination path, inducing 340 nm excitation band and 510 nm green light emission of Lu2WO6. Furthermore, multicolor emission of 1 at% Bi3+ + RE3+ (RE = Sm/Eu/Dy)-codoped Lu2WO6 is acquired via synergistic modification of the Bi-O antibonding state and RE3+ 4f states. Thus, the photogenerated charge motion in Lu2WO6 is tuned to expand application fields.
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Affiliation(s)
- Chunyu Zheng
- Key Laboratory of brain-like neuromorphic devices and systems of Hebei Province, College of Electron and Information Engineering, Hebei University, Baoding 071002, China.
| | - Ce Yu
- College of Civil Engineering and Architecture, Hebei University, Baoding 071002, China
| | - Han Yu
- Key Laboratory of brain-like neuromorphic devices and systems of Hebei Province, College of Electron and Information Engineering, Hebei University, Baoding 071002, China.
| | - Huibing Zheng
- School of mathematics and physics, Anyang Institute of Technology, Anyang 455099, China
| | - Luqiao Yin
- Key Laboratory of Advanced Display and System Applications, Shanghai University, Ministry of Education, Shanghai 200444, China
| | - Nian Fu
- College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Bangfu Ding
- Key Laboratory of brain-like neuromorphic devices and systems of Hebei Province, College of Electron and Information Engineering, Hebei University, Baoding 071002, China.
| | - Liang Mao
- School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China.
| | - Junying Zhang
- School of Physics, Beihang University, Beijing 100191, China
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23
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Luo D, Wang L, Qiu Y, Huang R, Liu B. Emergence of Impurity-Doped Nanocrystal Light-Emitting Diodes. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1226. [PMID: 32599722 PMCID: PMC7353084 DOI: 10.3390/nano10061226] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/17/2020] [Accepted: 06/17/2020] [Indexed: 11/16/2022]
Abstract
In recent years, impurity-doped nanocrystal light-emitting diodes (LEDs) have aroused both academic and industrial interest since they are highly promising to satisfy the increasing demand of display, lighting, and signaling technologies. Compared with undoped counterparts, impurity-doped nanocrystal LEDs have been demonstrated to possess many extraordinary characteristics including enhanced efficiency, increased luminance, reduced voltage, and prolonged stability. In this review, recent state-of-the-art concepts to achieve high-performance impurity-doped nanocrystal LEDs are summarized. Firstly, the fundamental concepts of impurity-doped nanocrystal LEDs are presented. Then, the strategies to enhance the performance of impurity-doped nanocrystal LEDs via both material design and device engineering are introduced. In particular, the emergence of three types of impurity-doped nanocrystal LEDs is comprehensively highlighted, namely impurity-doped colloidal quantum dot LEDs, impurity-doped perovskite LEDs, and impurity-doped colloidal quantum well LEDs. At last, the challenges and the opportunities to further improve the performance of impurity-doped nanocrystal LEDs are described.
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Affiliation(s)
- Dongxiang Luo
- Institute of Semiconductors, South China Normal University, Guangzhou 510631, China;
| | - Lin Wang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore;
| | - Ying Qiu
- Guangdong R&D Center for Technological Economy, Guangzhou 510000, China
| | - Runda Huang
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China;
| | - Baiquan Liu
- State Key Laboratory of Optoelectronic Materials and Technologies and the Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510275, China
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24
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Yu ZL, Zhao YQ, Wan Q, Liu B, Yang JL, Cai MQ. Theoretical study on the effect of the optical properties and electronic structure for the Bi-doped CsPbBr 3. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:205504. [PMID: 31968314 DOI: 10.1088/1361-648x/ab6e90] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Metal doping, including Bi, Yb, Eu, Sb and so on, are important means to improve the photoelectric properties and stability of metal halide perovskite materials. Among these works, Bi-doped CsPbBr3 especially has attracted much attention for both experimental and theoretical investigation. But there are still some arguments to be solved. One view thinks that Bi doping in CsPbBr3 not only influences the band structure, but also improves the charge transfer (Raihana et al 2017 J. Am. Chem. Soc. 139 731-7). The other supported the points that there are no changes in the valence band structure of Bi-doped CsPbBr3 and the concept of the band-gap engineering in Bi-doped CsPbBr3 halide perovskite is not valid (Olga et al 2018 J. Phys. Chem. Lett. 9 5408-11). They also have different opinions for the reason of the red-shift phenomenon caused by Bi-doped CsPbBr3. In this work, the density functional theory (DFT) based first-principles methods is adopted to investigate the effect of the optical properties and electronic structure for Bi doping CsPbBr3. The calculated results clarify that the red-shift phenomenon is caused by the slight reduction of band gap and the transition levels of Bii and BiPb defects. The values of red-shift also were estimated about 150 meV for Bii defects, which is close the experimental value of about 140 meV. Moreover, our studies also show that the Bi doping does not affect the valence bands, but Bii defects change the electron distribution of the conduction band. Our work and experimental results support and confirm each other, which provides a useful reference for the study of Sb-doped CsPbBr3, Eu-doped CsPbBr3 and so on.
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Affiliation(s)
- Zhuo-Liang Yu
- Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education and Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
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25
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Ulatowski AM, Wright AD, Wenger B, Buizza LRV, Motti SG, Eggimann HJ, Savill KJ, Borchert J, Snaith HJ, Johnston MB, Herz LM. Charge-Carrier Trapping Dynamics in Bismuth-Doped Thin Films of MAPbBr 3 Perovskite. J Phys Chem Lett 2020; 11:3681-3688. [PMID: 32302145 DOI: 10.1021/acs.jpclett.0c01048] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Successful chemical doping of metal halide perovskites with small amounts of heterovalent metals has attracted recent research attention because of its potential to improve long-term material stability and tune absorption spectra. However, some additives have been observed to impact negatively on optoelectronic properties, highlighting the importance of understanding charge-carrier behavior in doped metal halide perovskites. Here, we present an investigation of charge-carrier trapping and conduction in films of MAPbBr3 perovskite chemically doped with bismuth. We find that the addition of bismuth has no effect on either the band gap or exciton binding energy of the MAPbBr3 host. However, we observe a substantial enhancement of electron-trapping defects upon bismuth doping, which results in an ultrafast charge-carrier decay component, enhanced infrared emission, and a notable decrease of charge-carrier mobility. We propose that such defects arise from the current approach to Bi-doping through addition of BiBr3, which may enhance the presence of bromide interstitials.
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Affiliation(s)
- Aleksander M Ulatowski
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Adam D Wright
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Bernard Wenger
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Leonardo R V Buizza
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Silvia G Motti
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Hannah J Eggimann
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Kimberley J Savill
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Juliane Borchert
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Henry J Snaith
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Michael B Johnston
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | - Laura M Herz
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
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26
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Wu W, Cong WY, Guan C, Sun H, Yin R, Yu G, Lu YB. Investigation of the Mn dopant-enhanced photoluminescence performance of lead-free Cs 2AgInCl 6 double perovskite crystals. Phys Chem Chem Phys 2020; 22:1815-1819. [PMID: 31808479 DOI: 10.1039/c9cp05236d] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The lead-free double perovskite Cs2AgInCl6 is a potential candidate for LEDs, the photoluminescence performance of which is reinforced greatly by Mn doping. Here, we analyzed the geometric, electronic and photoluminescence properties of Mn-doped Cs2AgInCl6 by means of first-principle calculations. We found that in the interior of Cs2AgInCl6, the Mn dopant formed defect complexes by substituting an Ag atom and generating an Ag vacancy (MnAgVAg) owing to the charge balance and the weak distortion of the metal octahedra. The MnAgVAg defect introduced two defect bands in the forbidden gap, which was contributed predominantly by the 3d orbitals of the Mn2+ ions. The electron transition of the Mn2+ ions from the first excited state to the ground state, i.e., from 4T1 to 6A1 states, gives rise to the PL spectrum that is lower than the bandgap. Therefore, we show that the Mn dopant indeed reinforces the PL performance of Cs2AgInCl6 greatly and is beneficial for its use as an LED material.
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Affiliation(s)
- Wentiao Wu
- School of Space Science and Physics, Shandong University, Weihai 264209, China.
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27
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Wang K, Subhani WS, Wang Y, Zuo X, Wang H, Duan L, Liu SF. Metal Cations in Efficient Perovskite Solar Cells: Progress and Perspective. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1902037. [PMID: 31304651 DOI: 10.1002/adma.201902037] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 05/29/2019] [Indexed: 06/10/2023]
Abstract
Metal halide perovskite solar cells (PVSCs) have revolutionized photovoltaics since the first prototype in 2009, and up to now the highest efficiency has soared to 24.2%, which is on par with commercial thin film cells and not far from monocrystalline silicon solar cells. Optimizing device performance and improving stability have always been the research highlight of PVSCs. Metal cations are introduced into perovskites to further optimize the quality, and this strategy is showing a vigorous development trend. Here, the progress of research into metal cations for PVSCs is discussed by focusing on the position of the cations in perovskites, the modulation of the film quality, and the influence on the photovoltaic performance. Metal cations are considered in the order of alkali cations, alkaline earth cations, then metal cations in the ds and d regions, and ultimately trivalent cations (p- and f-block metal cations) according to the periodic table of elements. Finally, this work is summarized and some relevant issues are discussed.
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Affiliation(s)
- Kai Wang
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
| | - Waqas Siddique Subhani
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
| | - Yulong Wang
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
| | - Xiaokun Zuo
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
| | - Hui Wang
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
| | - Lianjie Duan
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
| | - Shengzhong Frank Liu
- Dalian National Laboratory for Clean Energy, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, China
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, Shaanxi, China
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28
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Effect of surface intrinsic defects on the structural stability and electronic properties of the all-inorganic halide perovskite CsPbI3(0 0 1) film. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.136719] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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29
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Kuznetsov VN, Glazkova NI, Mikhaylov RV, Murashkina AA, Serpone N. Advanced diffuse reflectance spectroscopy for studies of photochromic/photoactive solids. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2019; 31:424001. [PMID: 31226703 DOI: 10.1088/1361-648x/ab2bab] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The present article reports novel opportunities of diffuse reflectance (DR) spectroscopy extended through the use of a cryostat accessory for UV-vis-NIR spectrophotometers to investigate temperature dependences of DR spectra at the fundamental absorption edge of semiconductors at T = 90-600 K. Examined are rutile TiO2, a photochromic rutile TiO2 with strong absorption in the visible region, and the halide double perovskite Cs2AgBiBr6 that exhibited two optical band-to-band transitions in low-temperature DR spectra. Also reported are DR spectral and kinetics measurements of the separation of photogenerated charge carriers in various trap sites, their thermostimulated detrapping and their recombination in two different photochromic materials. The similarity between absorption and temperature-programmed annealing (TPA) spectra induced in the UV and Vis regions yielded physical evidence of the photo-formation of charge carriers upon Vis-light excitation of intrinsic defects (F-type centers) in yellow rutile TiO2. High-temperature oxidative/reductive treatments of samples, together with spectral and kinetics measurements were performed in situ with the accessory. Results led to assigning color centers in yellow TiO2 to Ti3+ centers as deep electron traps, and to the establishment of several types of Ti3+-based color centers that include extra-negatively charged Ti δ+ centers (3 > δ > 2). Photochromic occurrences are also elucidated in the Bi-doped perovskite CsPbBr3 under illumination in the region of intrinsic absorption and annealing of photoinduced absorption at T = 200-400 K. These phenomena are described in terms of the photogeneration of charge carriers followed by their trapping, which yielded Bi-related electron color centers responsible for the photoinduced absorption and for the thermostimulated detrapping of photoholes that ultimately recombine with the trapped electrons. The establishment of photochromism in the perovskites may lead to a further understanding of photoinduced and dark reversible phenomena in halide perovskites and halide perovskite-based solar cells.
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Affiliation(s)
- V N Kuznetsov
- Faculty of Physics, St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg 199034, Russia
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30
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Liu X, Xiao Y, Zeng Q, Jiang J, Li Y. Large-Area Organic-Free Perovskite Solar Cells with High Thermal Stability. J Phys Chem Lett 2019; 10:6382-6388. [PMID: 31593470 DOI: 10.1021/acs.jpclett.9b02644] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Organic-free perovskite solar cells (PSCs) have been considered as the most promising candidate for achieving long-term stability. Here, we demonstrate an organic-free PSC consisting of inorganic CsPbI2Br perovskite, nickel oxide hole transport layer, and niobium oxide electron transport layer. A maximum power conversion efficiency (PCE) of 11.20% is achieved with an active area of 5 cm2, and it increases to 14.11% with smaller area. More importantly, the organic-free PSCs show excellent thermal stability with PCE remaining above 98% of its initial value when heated at 100 °C for 150 min. Postannealing at a proper temperature further increases its maximum PCE to 14.45%, which is the highest among any reported all-inorganic PSCs with a p-i-n structure. The enhanced performance of the postannealed device is ascribed to the decreased trap-state density and improved interface charge-transfer properties. These results demonstrated that this novel organic-free device architecture can be employed to fabricate efficient and stable PSCs for large-scale manufacturing.
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Affiliation(s)
- Xin Liu
- Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 610054 , China
| | - Yequan Xiao
- Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 610054 , China
| | - Qiugui Zeng
- Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 610054 , China
| | - Jiexuan Jiang
- Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 610054 , China
| | - Yanbo Li
- Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 610054 , China
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31
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Zheng X, Hou Y, Sun HT, Mohammed OF, Sargent EH, Bakr OM. Reducing Defects in Halide Perovskite Nanocrystals for Light-Emitting Applications. J Phys Chem Lett 2019; 10:2629-2640. [PMID: 31038960 DOI: 10.1021/acs.jpclett.9b00689] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The large specific surface area of perovskite nanocrystals (NCs) increases the likelihood of surface defects compared to that of bulk single crystals and polycrystalline thin films. It is thus crucial to comprehend and control their defect population in order to exploit the potential of perovskite NCs. This Perspective describes and classifies recent advances in understanding defect chemistry and avenues toward defect density reduction in perovskite NCs, and it does so in the context of the promise perceived in light-emitting devices. Several pathways for decreasing the defect density are explored, including advanced NC syntheses, new surface-capping strategies, doping with metal ions and rare earths, engineering elemental compensation, and the translation of core-shell heterostructures into the perovskite materials family. We close with challenges that remain in perovskite NC defect research.
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Affiliation(s)
- Xiaopeng Zheng
- Division of Physical Sciences and Engineering , King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Yi Hou
- Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario M5S 3G4 , Canada
| | - Hong-Tao Sun
- College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , China
| | - Omar F Mohammed
- Division of Physical Sciences and Engineering , King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900 , Kingdom of Saudi Arabia
| | - Edward H Sargent
- Department of Electrical and Computer Engineering , University of Toronto , 10 King's College Road , Toronto , Ontario M5S 3G4 , Canada
| | - Osman M Bakr
- Division of Physical Sciences and Engineering , King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900 , Kingdom of Saudi Arabia
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32
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Chen N, Cai T, Li W, Hills-Kimball K, Yang H, Que M, Nagaoka Y, Liu Z, Yang D, Dong A, Xu CY, Zia R, Chen O. Yb- and Mn-Doped Lead-Free Double Perovskite Cs 2AgBiX 6 (X = Cl -, Br -) Nanocrystals. ACS APPLIED MATERIALS & INTERFACES 2019; 11:16855-16863. [PMID: 30985112 DOI: 10.1021/acsami.9b02367] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Lead-free double perovskite nanocrystals (NCs) have emerged as a new category of materials that hold the potential for overcoming the instability and toxicity issues of lead-based counterparts. Doping chemistry represents a unique avenue toward tuning and optimizing the intrinsic optical and electronic properties of semiconductor materials. In this study, we report the first example of doping Yb3+ ions into lead-free double perovskite Cs2AgBiX6 (X = Cl-, Br-) NCs via a hot injection method. The doping of Yb3+ endows the double perovskite NCs with a newly emerged near-infrared emission band (sensitized from the NC hosts) in addition to their intrinsic trap-related visible photoluminescence. By controlling the Yb-doping concentration, the dual emission profiles and photon relaxation dynamics of the double perovskite NCs can be systematically tuned. Furthermore, we have successfully inserted divalent Mn2+ ions in Cs2AgBiCl6 NCs and observed emergence of dopant emission. Our work illustrates an effective and facile route toward modifying and optimizing optical properties of double perovskite Cs2AgBiX6 (X = Cl-, Br-) NCs with an indirect bandgap nature, which can broaden a range of their potential applications in optoelectronic devices.
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Affiliation(s)
- Na Chen
- School of Materials Science and Engineering , Harbin Institute of Technology , Harbin 150001 , China
| | | | | | | | | | | | | | | | | | | | - Cheng-Yan Xu
- School of Materials Science and Engineering , Harbin Institute of Technology , Harbin 150001 , China
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33
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Yang Z, Wei M, Voznyy O, Todorovic P, Liu M, Quintero-Bermudez R, Chen P, Fan JZ, Proppe AH, Quan LN, Walters G, Tan H, Chang JW, Jeng US, Kelley SO, Sargent EH. Anchored Ligands Facilitate Efficient B-Site Doping in Metal Halide Perovskites. J Am Chem Soc 2019; 141:8296-8305. [DOI: 10.1021/jacs.9b02565] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhenyu Yang
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, Canada, M5S 3G4
| | - Mingyang Wei
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, Canada, M5S 3G4
| | - Oleksandr Voznyy
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, Canada, M5S 3G4
| | - Petar Todorovic
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, Canada, M5S 3G4
| | - Mengxia Liu
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, Canada, M5S 3G4
| | - Rafael Quintero-Bermudez
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, Canada, M5S 3G4
| | - Peining Chen
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, Canada, M5S 3G4
| | - James Z. Fan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, Canada, M5S 3G4
| | - Andrew H. Proppe
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, Canada, M5S 3G4
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6
| | - Li Na Quan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, Canada, M5S 3G4
| | - Grant Walters
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, Canada, M5S 3G4
| | - Hairen Tan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, Canada, M5S 3G4
| | - Je-Wei Chang
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan
| | - U-Ser Jeng
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan
- National Synchrotron Radiation Research Center, Hsinchu Science Park, Hsinchu 300, Taiwan
| | - Shana O. Kelley
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada, M5S 3H6
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada, M5S 3M2
| | - Edward H. Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario, Canada, M5S 3G4
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34
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Chen Y, Jing H, Ling F, Kang W, Zhou T, Liu X, Zeng W, Zhang Y, Qi L, Fang L, Zhou M. Tuning the electronic structures of all-inorganic lead halide perovskite CsPbI3 via heterovalent doping: A first-principles investigation. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.02.050] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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35
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Zhang L, Wang K, Zou B. Bismuth Halide Perovskite-Like Materials: Current Opportunities and Challenges. CHEMSUSCHEM 2019; 12:1612-1630. [PMID: 30693678 DOI: 10.1002/cssc.201802930] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 01/21/2019] [Indexed: 05/27/2023]
Abstract
Metal halide perovskites have recently emerged as promising photovoltaic materials for application in solar cells with high power conversion efficiencies exceeding 23 %. In the years since such high efficiencies have been attained, investigations have mainly focused on the state-of-the-art 3 D Pb-based halide perovskite materials. However, the high toxicity of Pb and intrinsic instability of the pristine perovskite materials have become great obstacles to their industrial application and commercialization. To address these serious issues, it is imperative to explore low-toxicity metal halide perovskites or their derivatives to substitute Pb-based materials for better future development. Currently, Bi-based halide perovskite-like materials are attracting increased interest as environmentally friendly alternatives for photovoltaic applications. This Concept highlights recent advances of Bi-based halide perovskite-like materials in terms of understanding and modifying their fundamental properties and related device performance, with a focus on current challenges, opportunities for future development, and diversification of device applications.
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Affiliation(s)
- Long Zhang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
| | - Kai Wang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
| | - Bo Zou
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
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36
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Song Z, Zhao J, Liu Q. Luminescent perovskites: recent advances in theory and experiments. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00777f] [Citation(s) in RCA: 131] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This review summarizes previous research on luminescent perovskites, including oxides and halides, with different structural dimensionality. The relationship between the crystal structure, electronic structure and properties is discussed in detail.
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Affiliation(s)
- Zhen Song
- Beijing Key Laboratory for New Energy Materials and Technologies
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Jing Zhao
- Beijing Key Laboratory for New Energy Materials and Technologies
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Quanlin Liu
- Beijing Key Laboratory for New Energy Materials and Technologies
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
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37
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Cai T, Yang H, Hills-Kimball K, Song JP, Zhu H, Hofman E, Zheng W, Rubenstein BM, Chen O. Synthesis of All-Inorganic Cd-Doped CsPbCl 3 Perovskite Nanocrystals with Dual-Wavelength Emission. J Phys Chem Lett 2018; 9:7079-7084. [PMID: 30509067 DOI: 10.1021/acs.jpclett.8b03412] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Doped lead halide perovskite nanocrystals (NCs) have garnered significant attention due to their superior optoelectronic properties. Here, we report a synthesis of Cd-doped CsPbCl3 NCs by decoupling Pb- and Cl-precursors in a hot injection method. The resulting Cd-doped perovskite NCs manifest a dual-wavelength emission profile with the first reported example of Cd-dopant emission. By controlling Cd-dopant concentration, the emission profile can be tuned with a dopant emission quantum yield of up to 8%. A new secondary emission (∼610 nm) is induced by an energy transfer process from photoexcited hosts to Cd-dopants and a subsequent electronic transition from the excited state (3Eg) to the ground state (1A1g) of [CdCl6]4- units. This electronic transition matches well with a first-principles density functional theory calculation. Further, the optical behavior of Cd-doped CsPbCl3 NCs can be altered through postsynthetic anion-exchange reactions. Our studies present a new model system for doping chemistry studies in semiconductors for various optoelectronic applications.
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Affiliation(s)
- Tong Cai
- Department of Chemistry , Brown University , Providence , Rhode Island 02912 , United States
| | - Hanjun Yang
- Department of Chemistry , Brown University , Providence , Rhode Island 02912 , United States
| | - Katie Hills-Kimball
- Department of Chemistry , Brown University , Providence , Rhode Island 02912 , United States
| | - Jeong-Pil Song
- Department of Chemistry , Brown University , Providence , Rhode Island 02912 , United States
| | - Hua Zhu
- Department of Chemistry , Brown University , Providence , Rhode Island 02912 , United States
| | - Elan Hofman
- Department of Chemistry , Syracuse University , Syracuse , New York 13244 , United States
| | - Weiwei Zheng
- Department of Chemistry , Syracuse University , Syracuse , New York 13244 , United States
| | - Brenda M Rubenstein
- Department of Chemistry , Brown University , Providence , Rhode Island 02912 , United States
| | - Ou Chen
- Department of Chemistry , Brown University , Providence , Rhode Island 02912 , United States
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