1
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López C, Abia C, Gainza J, Rodrigues JE, Martinelli B, Serrano-Sánchez F, Silva RS, Ferrer MM, Dura OJ, Martínez JL, Fernández-Díaz MT, Alonso JA. Unveiling the Structural Properties, Optical Behavior, and Thermoelectric Performance of 2D CsSn 2Br 5 Halide Obtained by Mechanochemistry. Inorg Chem 2024; 63:12641-12650. [PMID: 38920333 PMCID: PMC11234366 DOI: 10.1021/acs.inorgchem.4c01861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/12/2024] [Accepted: 06/18/2024] [Indexed: 06/27/2024]
Abstract
Metal halide perovskites with a two-dimensional structure are utilized in photovoltaics and optoelectronics. High-crystallinity CsSn2Br5 specimens have been synthesized via ball milling. Differential scanning calorimetry curves show melting at 553 K (endothermic) and recrystallization at 516 K (exothermic). Structural analysis using synchrotron X-ray diffraction data, collected from 100 to 373 K, allows for the determination of Debye model parameters. This analysis provides insights into the relative Cs-Br and Sn-Br chemical bonds within the tetragonal structure (space group: I4/mcm), which remains stable throughout the temperature range studied. Combined with neutron data, X-N techniques permit the identification of the Sn2+ lone electron pair (5s2) in the two-dimensional framework, occupying empty space opposite to the four Sn-Br bonds of the pyramidal [SnBr4] coordination polyhedra. Additionally, diffuse reflectance UV-vis spectroscopy unveils an indirect optical gap of approximately ∼3.3 eV, aligning with the calculated value from the B3LYP-DFT method (∼3.2 eV). The material exhibits a positive Seebeck coefficient as high as 6.5 × 104 μV K-1 at 350 K, which evolves down to negative values of -3.0 × 103 μV K-1 at 550 K, surpassing values reported for other halide perovskites. Notably, the thermal conductivity remains exceptionally low, between 0.32 and 0.25 W m-1 K-1.
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Affiliation(s)
- Carlos
Alberto López
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
- INTEQUI,
(UNSL-CONICET) and Facultad de Química, Bioquímica y
Farmacia, UNSL, Almirante
Brown 1455, 5700 San Luis, Argentina
| | - Carmen Abia
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
- Institut
Laue Langevin, 38042 Grenoble, Cedex, France
| | - Javier Gainza
- European Synchrotron
Radiation Facility (ESRF), 71 Avenue des Martyrs, 38000 Grenoble, France
| | - João Elias Rodrigues
- CELLS−ALBA
Synchrotron Light Facility, Cerdanyola del Valles, Barcelona E-08290, Spain
| | - Brenda Martinelli
- CCAF, PPGCEM/CDTec, Federal University of Pelotas, 96010-610 Pelotas, Rio Grande do Sul, Brazil
| | | | - Romualdo Santos Silva
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
| | - Mateus M. Ferrer
- CCAF, PPGCEM/CDTec, Federal University of Pelotas, 96010-610 Pelotas, Rio Grande do Sul, Brazil
| | - Oscar J. Dura
- Departamento
de Física Aplicada, Universidad de
Castilla-La Mancha, Ciudad
Real E-13071, Spain
| | - José Luis Martínez
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
| | | | - José Antonio Alonso
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
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2
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Sun L, Zhao S, Tang X, Yu Q, Gao F, Liu J, Wang Y, Zhou Y, Yi H. Recent advances in catalytic oxidation of VOCs by two-dimensional ultra-thin nanomaterials. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 920:170748. [PMID: 38340848 DOI: 10.1016/j.scitotenv.2024.170748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/24/2024] [Accepted: 02/04/2024] [Indexed: 02/12/2024]
Abstract
Catalytic oxidation, an end-of-pipe treatment technology for effectively purifying volatile organic compounds (VOCs), has received widespread attention. The crux of catalytic oxidation lies in the development of efficient catalysts, with their optimization necessitating a comprehensive analysis of the catalytic reaction mechanism. Two-dimensional (2D) ultra-thin nanomaterials offer significant advantages in exploring the catalytic oxidation mechanism of VOCs due to their unique structure and properties. This review classifies strategies for regulating catalytic properties and typical applications of 2D materials in VOCs catalytic oxidation, in addition to their characteristics and typical characterization techniques. Furthermore, the possible reaction mechanism of 2D Co-based and Mn-based oxides in the catalytic oxidation of VOCs is analyzed, with a special focus on the synergistic effect between oxygen and metal vacancies. The objective of this review is to provide valuable references for scholars in the field.
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Affiliation(s)
- Long Sun
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Shunzheng Zhao
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Xiaolong Tang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Qingjun Yu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Fengyu Gao
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Jun Liu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Ya Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yuansong Zhou
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Honghong Yi
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China.
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3
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Abia C, López CA, Gainza J, Rodrigues JES, Fragoso B, Ferrer MM, Fernández-Díaz MT, Fauth F, Martínez JL, Alonso JA. Structural Features and Optical Properties of All-Inorganic Zero-Dimensional Halides Cs 4PbBr 6-xI x Obtained by Mechanochemistry. ACS APPLIED MATERIALS & INTERFACES 2023; 15:40762-40771. [PMID: 37595125 PMCID: PMC10472433 DOI: 10.1021/acsami.3c07707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 08/07/2023] [Indexed: 08/20/2023]
Abstract
Despite the great success of hybrid CH3NH3PbI3 perovskite in photovoltaics, ascribed to its excellent optical absorption properties, its instability toward moisture is still an insurmountable drawback. All-inorganic perovskites are much less sensitive to humidity and have potential interest for solar cell applications. Alternative strategies have been developed to design novel materials with appealing properties, which include different topologies for the octahedral arrangements from three-dimensional (3D, e.g., CsPbBr3 perovskite) or two-dimensional (2D, e.g., CsPb2Br5) to zero-dimensional (0D, i.e., without connection between octahedra), as the case of Cs4PbX6 (X = Br, I) halides. The crystal structure of these materials is complex, and their thermal evolution is unexplored. In this work, we describe the synthesis of Cs4PbBr6-xIx (x = 0, 2, 4, 6) halides by mechanochemical procedures with green credentials; these specimens display excellent crystallinity enabling a detailed structural investigation from synchrotron X-ray powder diffraction (SXRD) data, essential to revisit some features in the temperature range of 90-298 K. In all this regime, the structure is defined in the trigonal R3̅c space group (#167). The presence of Cs and X vacancies suggests some ionic mobility into the crystal structure of these 0D halides. Bond valence maps (BVMs) are useful in determining isovalent surfaces for both Cs4PbBr6 and Cs4PbI6 phases, unveiling the likely ionic pathways for cesium and bromide ions and showing a full 3D connection in the bromide phase, in contrast to the iodide one. On the other hand, the evolution of the anisotropic displacement parameters is useful to evaluate the Debye temperatures, confirming that Cs atoms have more freedom to move, while Pb is more confined at its site, likely due to a higher covalency degree in Pb-X bonds than that in Cs-X bonds. Diffuse reflectance ultraviolet-visible (UV-vis) spectroscopy shows that the optical band gap can be tuned depending on iodine content (x) in the range of 3.6-3.06 eV. From density functional theory (DFT) simulations, the general trend of reducing the band gap when Br is replaced by I is well reproduced.
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Affiliation(s)
- Carmen Abia
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
- Institut
Laue Langevin, BP 156X, Grenoble F-38042, France
| | - Carlos A. López
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
- INTEQUI,
(UNSL-CONICET) and Facultad de Química, Bioquímica y
Farmacia, UNSL, Almirante
Brown 1455, 5700 San Luis, Argentina
| | - Javier Gainza
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
| | - João Elias
F. S. Rodrigues
- CELLS−ALBA
Synchrotron, Cerdanyola
del Valles, Barcelona E-08290, Spain
- European
Synchrotron Radiation Facility (ESRF), 38000 Grenoble Cedex, France
| | - Brenda Fragoso
- CCAF, PPGCEM/CDTec, Federal University of Pelotas, 96010-610 Pelotas, Rio Grande do Sul, Brazil
| | - Mateus M. Ferrer
- CCAF, PPGCEM/CDTec, Federal University of Pelotas, 96010-610 Pelotas, Rio Grande do Sul, Brazil
| | | | - François Fauth
- CELLS−ALBA
Synchrotron, Cerdanyola
del Valles, Barcelona E-08290, Spain
| | - José Luis Martínez
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
| | - José Antonio Alonso
- Instituto
de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, 28049 Madrid, Spain
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4
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Lu Y, Qu K, Zhang T, He Q, Pan J. Metal Halide Perovskite Nanowires: Controllable Synthesis, Mechanism, and Application in Optoelectronic Devices. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:419. [PMID: 36770381 PMCID: PMC9919554 DOI: 10.3390/nano13030419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/08/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Metal halide perovskites are promising energy materials because of their high absorption coefficients, long carrier lifetimes, strong photoluminescence, and low cost. Low-dimensional halide perovskites, especially one-dimensional (1D) halide perovskite nanowires (NWs), have become a hot research topic in optoelectronics owing to their excellent optoelectronic properties. Herein, we review the synthetic strategies and mechanisms of halide perovskite NWs in recent years, such as hot injection, vapor phase growth, selfassembly, and solvothermal synthesis. Furthermore, we summarize their applications in optoelectronics, including lasers, photodetectors, and solar cells. Finally, we propose possible perspectives for the development of halide perovskite NWs.
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Affiliation(s)
| | | | | | - Qingquan He
- Correspondence: (Q.H.); (J.P.); Tel.: +86-1-520-193-3096(Q.H.); +86-1-348-617-8387(J.P.)
| | - Jun Pan
- Correspondence: (Q.H.); (J.P.); Tel.: +86-1-520-193-3096(Q.H.); +86-1-348-617-8387(J.P.)
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5
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Huang J, Li YM, Wang H, Zhang FH, Zhang D. Enhancement of All-Inorganic Perovskite Solar Cells by Lead-Cerium Bimetal Strategy. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20230-20236. [PMID: 35452225 DOI: 10.1021/acsami.2c02373] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Owing to the instability of organic materials, an inorganic perovskite solar cell (PSC) attracts much attention in recent years. However, the instability of phase and overmuch traps lead to the inferior performance of inorganic perovskite solar cell, a high performance inorganic PSC is desirable. The element of cerium possesses a suitable chemical and physcial properties to substitute lead. We utilize cerium to partially substitute lead, a lead-cerium (Pb-Ce) bimetal based inorganic PSC is successfully achieved to modify the stability of PSC, the CsPb0.85Ce0.1I3 based PSC exhibits a champion PCE (power conversion efficiency) of 17.57%, and the tolerance of thermal, illumination, and environmental are enhanced among 10-20%. The enhanced PCE is ascribed to the structure of lead-cerium (Pb-Ce) bimetal perovskite absorbing layers and high quality of perovskite film.
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Affiliation(s)
- Jin Huang
- School of Electronic Information and Artificial Intelligence, Shannxi University of Science & Technology, Xi'an 710021, China
- School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Yi Ming Li
- School of Electronic Information and Artificial Intelligence, Shannxi University of Science & Technology, Xi'an 710021, China
| | - Hao Wang
- School of Electronic Information and Artificial Intelligence, Shannxi University of Science & Technology, Xi'an 710021, China
| | - Fang Hui Zhang
- School of Electronic Information and Artificial Intelligence, Shannxi University of Science & Technology, Xi'an 710021, China
| | - Dan Zhang
- The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an 710049, China
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6
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Kumar M, Pawar V, Jha PK, Jha PA, Singh P. Compositional degradation with Br content in Cesium lead halide CsPbBrxI3-x. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.122893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Yang W, Li J, Chen X, Feng Y, Wu C, Gates ID, Gao Z, Ding X, Yao J, Li H. Exploring the Effects of Ionic Defects on the Stability of CsPbI 3 with a Deep Learning Potential. Chemphyschem 2022; 23:e202100841. [PMID: 35199438 DOI: 10.1002/cphc.202100841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/13/2022] [Indexed: 01/08/2023]
Abstract
Inorganic metal halide perovskites, such as CsPbI3 , have recently drawn extensive attention due to their excellent optical properties and high photoelectric efficiencies. However, the structural instability originating from inherent ionic defects leads to a sharp drop in the photoelectric efficiency, which significantly limits their applications in solar cells. The instability induced by ionic defects remains unresolved due to its complicated reaction process. Herein, to explore the effects of ionic defects on stability, we develop a deep learning potential for a CsPbI3 ternary system based upon density functional theory (DFT) calculated data for large-scale molecular dynamics (MD) simulations. By exploring 2.4 million configurations, of which 7,730 structures are used for the training set, the deep learning potential shows an accuracy approaching DFT-level. Furthermore, MD simulations with a 5,000-atom system and a one nanosecond timeframe are performed to explore the effects of bulk and surface defects on the stability of CsPbI3 . This deep learning potential based MD simulation provides solid evidence together with the derived radial distribution functions, simulated diffraction of X-rays, instability temperature, molecular trajectory, and coordination number for revealing the instability mechanism of CsPbI3 . Among bulk defects, Cs defects have the most significant influence on the stability of CsPbI3 with a defect tolerance concentration of 0.32 %, followed by Pb and I defects. With regards to surface defects, Cs defects have the largest impact on the stability of CsPbI3 when the defect concentration is less than 15 %, whereas Pb defects act play a dominant role for defect concentrations exceeding 20 %. Most importantly, this machine-learning-based MD simulation strategy provides a new avenue to explore the ionic defect effects on the stability of perovskite-like materials, laying a theoretical foundation for the design of stable perovskite materials.
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Affiliation(s)
- Weijie Yang
- Department of Power Engineering, School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding, 071003, China
| | - Jiajia Li
- Department of Power Engineering, School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding, 071003, China
| | - Xuelu Chen
- Department of Power Engineering, School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding, 071003, China
| | - Yajun Feng
- Department of Power Engineering, School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding, 071003, China
| | - Chongchong Wu
- Department of Chemical and Petroleum Engineering, University of Calgary, T2N 1N4, Calgary, Alberta, Canada
| | - Ian D Gates
- Department of Chemical and Petroleum Engineering, University of Calgary, T2N 1N4, Calgary, Alberta, Canada
| | - Zhengyang Gao
- Department of Power Engineering, School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding, 071003, China
| | - Xunlei Ding
- School of Mathematics and Physics, North China Electric Power University, Beijing, 102206, China.,Institute of Clusters and Low Dimensional Nanomaterials, School of Mathematics and Physics, North China Electric Power University, Beijing, 102206, China
| | - Jianxi Yao
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China.,Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing, 102206, China
| | - Hao Li
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan
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8
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Chang YHR, Yeoh KH, Lim TL, Lim KG, Tuh MH. Stabilizing XPbI 3 (X = MA, FA and Cs) cubic perovskites by monolayer Ag 4Se 2 deposition. NEW J CHEM 2022. [DOI: 10.1039/d1nj04984d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Monolayer Ag4Se2 deposition also leads to a synergistical enhancement of their carrier mobility and absorption coefficient within the visible light range.
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Affiliation(s)
- Yee Hui Robin Chang
- Faculty of Applied Sciences, Universiti Teknologi MARA, Cawangan Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia
| | - Keat Hoe Yeoh
- Department of Electrical and Electronic Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Kajang 43000, Selangor, Malaysia
- Center for Photonics and Advanced Material Research, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Kajang 43000, Selangor, Malaysia
| | - Thong Leng Lim
- Faculty of Engineering and Technology, Multimedia University, Melaka 75450, Malaysia
| | - Kok-Geng Lim
- University of Southampton Malaysia, Iskandar Puteri 79200, Johor, Malaysia
| | - Moi Hua Tuh
- Faculty of Computer & Mathematical Sciences, Universiti Teknologi MARA, Cawangan Sarawak, Kota Samarahan 94300, Sarawak, Malaysia
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9
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M A G, Rahman A. Phase evolution of all-inorganic perovskite nanowires during its growth from quantum dots. NANOTECHNOLOGY 2021; 33:085706. [PMID: 34753118 DOI: 10.1088/1361-6528/ac37e2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 11/09/2021] [Indexed: 06/13/2023]
Abstract
All-inorganic lead-halide perovskites have emerged as an exciting material owing to their excellent optoelectronic properties and high stability over hybrid organometallic perovskites. Nanowires of these materials, in particular, have shown great promise for optoelectronic applications due to their high optical absorption coefficient and low defect state density. However, the synthesis of the most promising alpha-Cesium lead iodide (α-CsPbI3) nanowires is challenging as it is metastable and spontaneously converts to a non-perovskiteδ-phase. The hot-injection method is one of the most facile, well-controlled, and commonly used approaches for synthesizing CsPbX3nanostructures. But the exact mechanism of growing these nanowires in this technique is not clear. Here, we show that the hot-injection method produces photoactive phases of quantum dots (QDs) and nanowires of CsPbBr3,and QDs of CsPbI3, but CsPbI3nanowires are grown in their non-perovskiteδ-phase. Monitoring the nanowire growth during the hot-injection technique and through detailed characterization, we establish that CsPbI3nanowires are formed in the non-perovskite phase from the beginning rather than transforming after its growth from perovskite to a non-perovskite phase. We have discussed a possible mechanism of how non-perovskite nanowires of CsPbI3grow at the expense of photoactive perovskite QDs. Our findings will help to synthesize nanostructures of all-inorganic perovskites with desired phases, which is essential for successful technological applications.
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Affiliation(s)
- Gokul M A
- Department of Physics, Indian Institute for Science Education and Research (IISER)-Pune, Dr Homi Bhabha Road, Pune-411008, India
| | - Atikur Rahman
- Department of Physics, Indian Institute for Science Education and Research (IISER)-Pune, Dr Homi Bhabha Road, Pune-411008, India
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10
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Matuhina A, Grandhi GK, Liu M, Smått JH, Viswanath NSM, Ali-Löytty H, Lahtonen K, Vivo P. Octahedral distortion driven by CsPbI 3 nanocrystal reaction temperature - the effects on phase stability and beyond. NANOSCALE 2021; 13:14186-14196. [PMID: 34477700 DOI: 10.1039/d1nr04071e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Cesium lead iodide (CsPbI3) perovskite nanocrystals (NCs) suffer from a known transformation at room temperature from their red-emitting (black) to non-emitting (yellow) phase, induced by the tilting of PbI6 octahedra. While the reported attempts to stabilize CsPbI3 NCs mainly involve Pb2+-site doping as well as compositional and/or NC surface engineering, the black phase stability in relation only to the variation of the reaction temperature of CsPbI3 NCs is surprisingly overlooked. We report a holistic study of the phase stability of CsPbI3 NCs, encompassing dispersions, films, and even devices by tuning the hot-injection temperature between 120-170 °C. Our findings suggest that the transition from the black to the yellow phase occurs after over a month for NCs synthesized at 150 °C (150@NCs). Structural refinement studies attribute the enhanced stability of 150@NCs to their observed lowest octahedral distortion. The 150@NCs also lead to stable unencapsulated solar cells with unchanged performance upon 26 days of shelf storage in dry air. Our study underlines the importance of scrutinizing synthesis parameters for designing stable perovskite NCs towards long-lasting optoelectronic devices.
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Affiliation(s)
- Anastasia Matuhina
- Hybrid Solar Cells, Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33014 Tampere, Finland.
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11
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Pintor Monroy MI, Goldberg I, Elkhouly K, Georgitzikis E, Clinckemalie L, Croes G, Annavarapu N, Qiu W, Debroye E, Kuang Y, Roeffaers MBJ, Hofkens J, Gehlhaar R, Genoe J. All-Evaporated, All-Inorganic CsPbI 3 Perovskite-Based Devices for Broad-Band Photodetector and Solar Cell Applications. ACS APPLIED ELECTRONIC MATERIALS 2021; 3:3023-3033. [PMID: 34337416 PMCID: PMC8320527 DOI: 10.1021/acsaelm.1c00252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/23/2021] [Indexed: 06/13/2023]
Abstract
Following the rapid increase of organic metal halide perovskites toward commercial application in thin-film solar cells, inorganic alternatives attracted great interest with their potential of longer device lifetime due to the stability improvement under increased temperatures and moisture ingress. Among them, cesium lead iodide (CsPbI3) has gained significant attention due to similar electronic and optical properties to methylammonium lead iodide (MAPbI3), with a band gap of 1.7 eV, high absorption coefficient, and large diffusion length, while also offering the advantage of being completely inorganic, providing a higher thermal stability and preventing material degradation. On a device level, however, it seems also essential to replace organic transport layers by inorganic counterparts to further prevent degradation. In addition, devices are mostly fabricated by spin coating, limiting their reproducibility and scalability; in this case, exploring all-evaporated devices allows us to improve the quality of the layers and to increase their reproducibility. In this work, we focus on the deposition of CsPbI3 by CsI and PbI2 co-evaporation. We fabricate devices with an all-inorganic, all-evaporated structure, employing NiO and TiO2 as transport layers, and evaluate these devices for both photodetector and solar cell applications. As a photodetector, low leakage current, high external quantum efficiency (EQE) and detectivity, and fast rise and decay times were obtained, while as a solar cell, acceptable efficiencies were achieved. These all-inorganic, all-evaporated devices represent one step forward toward higher stability and reproducibility while enabling large area compatibility and easier integration with other circuitry and, in future, the possible commercialization of perovskite-based technology.
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Affiliation(s)
- Maria Isabel Pintor Monroy
- imec, Kapeldreef 75, 3001
Leuven, Belgium
- Department of Electrical Engineering (ESAT),
KU Leuven, Kasteelpark Arenberg 10, 3001 Leuven,
Belgium
| | - Iakov Goldberg
- imec, Kapeldreef 75, 3001
Leuven, Belgium
- Department of Electrical Engineering (ESAT),
KU Leuven, Kasteelpark Arenberg 10, 3001 Leuven,
Belgium
| | - Karim Elkhouly
- imec, Kapeldreef 75, 3001
Leuven, Belgium
- Department of Electrical Engineering (ESAT),
KU Leuven, Kasteelpark Arenberg 10, 3001 Leuven,
Belgium
| | | | - Lotte Clinckemalie
- Department of Chemistry, Faculty of Sciences,
KU Leuven, Celestijnenlaan 200F, 3001 Leuven,
Belgium
| | - Guillaume Croes
- imec, Kapeldreef 75, 3001
Leuven, Belgium
- Department of Electrical Engineering (ESAT),
KU Leuven, Kasteelpark Arenberg 10, 3001 Leuven,
Belgium
| | - Nirav Annavarapu
- imec, Kapeldreef 75, 3001
Leuven, Belgium
- Department of Electrical Engineering (ESAT),
KU Leuven, Kasteelpark Arenberg 10, 3001 Leuven,
Belgium
| | - Weiming Qiu
- imec, Kapeldreef 75, 3001
Leuven, Belgium
- Department of Chemistry, Faculty of Sciences,
KU Leuven, Celestijnenlaan 200F, 3001 Leuven,
Belgium
| | - Elke Debroye
- Department of Chemistry, Faculty of Sciences,
KU Leuven, Celestijnenlaan 200F, 3001 Leuven,
Belgium
| | - Yinghuan Kuang
- imec, Partner in Solliance and
Energyville, Thin Film PV, Thor Park 8320, 3600 Genk,
Belgium
| | | | - Johan Hofkens
- Department of Chemistry, Faculty of Sciences,
KU Leuven, Celestijnenlaan 200F, 3001 Leuven,
Belgium
- Max Planck Institute for Polymer
Research, Ackermannweg 10, 55128 Mainz, Germany
| | | | - Jan Genoe
- imec, Kapeldreef 75, 3001
Leuven, Belgium
- Department of Electrical Engineering (ESAT),
KU Leuven, Kasteelpark Arenberg 10, 3001 Leuven,
Belgium
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12
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Chen Z, Zhou B, Yuan J, Tang N, Lian L, Qin L, Zhu L, Zhang J, Chen R, Zang J. Cu 2+-Doped CsPbI 3 Nanocrystals with Enhanced Stability for Light-Emitting Diodes. J Phys Chem Lett 2021; 12:3038-3045. [PMID: 33735572 DOI: 10.1021/acs.jpclett.1c00515] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Black phase CsPbI3 perovskites have emerged as one of the most promising materials for use in optoelectronic devices due to their remarkable properties. However, black phase CsPbI3 usually possesses poor stability and involves a phase change process, resulting in an undesired orthorhombic (δ) yellow phase. Here, the enhanced stability of CsPbI3 nanocrystals is achieved by incorporating the Cu2+ ion into the CsPbI3 lattice under mild conditions. In particular, the Cu2+-doped CsPbI3 film can maintain red luminescence for 35 days in air while the undoped ones transformed into the nonluminescent yellow phase in several days. Furthermore, first-principles calculations verified that the enhanced stability is ascribed to the increased formation energy due to the successful doping of Cu2+ in CsPbI3. Benefiting from such an effective doping strategy, the as-prepared Cu2+-doped CsPbI3 as an emitting layer shows much better performance compared with that of the undoped counterpart. The turn-on voltage of the Cu2+-doped quantum-dot light-emitting diode (QLED) (1.6 V) is significantly reduced compared with that of the pristine QLED (3.8 V). In addition, the luminance of the Cu2+-doped QLED can reach 1270 cd/m2, which is more than twice that of the pristine CsPbI3 QLED (542 cd/m2). The device performance is believed to be further improved by optimizing the purification process and device structure, shedding light on future applications.
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Affiliation(s)
- Zhuo Chen
- School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
- Innovation Institute, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Binze Zhou
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Junhui Yuan
- School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Ni Tang
- School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Linyuan Lian
- School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Le Qin
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Linhao Zhu
- School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jianbing Zhang
- School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Rong Chen
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Jianfeng Zang
- School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
- Innovation Institute, Huazhong University of Science and Technology, Wuhan 430074, China
- State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
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13
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Li Z, Qin Y, Dong L, Li K, Qiao Y, Li W. Elastic and electronic origins of strain stabilized photovoltaic γ-CsPbI3. Phys Chem Chem Phys 2020; 22:12706-12712. [DOI: 10.1039/d0cp01649g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Results of this work provide fundamental elastic and electronic insights which are instructive for strain engineering of photovoltaic γ-CsPbI3.
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Affiliation(s)
- Zhigang Li
- School of Materials Science and Engineering Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry
- Nankai University
- Tianjin 300350
- China
| | - Yan Qin
- School of Physics and Wuhan National Laboratory for Optoelectronics
- Huazhong University of Science and Technology
- Wuhan 430074
- China
| | - Liyuan Dong
- School of Physics and Wuhan National Laboratory for Optoelectronics
- Huazhong University of Science and Technology
- Wuhan 430074
- China
| | - Kai Li
- School of Materials Science and Engineering Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry
- Nankai University
- Tianjin 300350
- China
| | - Yang Qiao
- School of Materials Science and Engineering Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry
- Nankai University
- Tianjin 300350
- China
| | - Wei Li
- School of Materials Science and Engineering Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry
- Nankai University
- Tianjin 300350
- China
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14
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Guo YY, Lightfoot P. Structural diversity of lead halide chain compounds, APbX 3, templated by isomeric molecular cations. Dalton Trans 2020; 49:12767-12775. [PMID: 32959845 DOI: 10.1039/d0dt02782k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three new 1D chain structure type hybrid organic-inorganic lead(ii) halides are presented: IQPbBr3, QPbBr3 and QPbI3, templated by large organic cations, isoquinolinium ([IQ+] = protonated isoquinoline) and its isomer quinolonium ([Q+] = protonated quinoline). All three compounds possess the same generic formula as cubic perovskite, ABX3, but adopt different structures. IQPbBr3 adopts a 1D face-sharing single chain hexagonal perovskite structure type, and the other two, QPbBr3 and QPbI3, adopt a non-perovskite structure which is built from 1D edge-sharing octahedral double chains. Crystal structures and preliminary photophysical properties are discussed. Two of them have lower bandgaps than the other reported materials with the same structure type, indicating the value of further exploratory studies for these types of materials.
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Affiliation(s)
- Yuan-Yuan Guo
- School of Chemistry and EaStChem, University of St Andrews, St Andrews, Fife, KY16 9ST, UK.
| | - Philip Lightfoot
- School of Chemistry and EaStChem, University of St Andrews, St Andrews, Fife, KY16 9ST, UK.
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15
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Du Z, Fu D, Teng J, Wang L, Gao F, Yang W, Zhang H, Fang X. CsPbI 3 Nanotube Photodetectors with High Detectivity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1905253. [PMID: 31769610 DOI: 10.1002/smll.201905253] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 11/07/2019] [Indexed: 06/10/2023]
Abstract
In the present work, the exploration of photodetectors (PDs) based on CsPbI3 nanotubes are reported. The as-prepared CsPbI3 nanotubes can be stable for more than 2 months under air conditions. It is found that, in comparison to the nanowires, nanobelts, and nanosheets, the nanotubes can be advantageous to be used as the functional units for PDs, which is mainly attributed to the enhanced light absorption ability induced by the light trapping effect within the tube cavity. As a proof of concept, the as-constructed PDs based on CsPbI3 nanotube present an overall excellent performance with a responsivity (Rλ ), external quantum efficiency (EQE) and detectivity of 1.84 × 103 A W-1 , 5.65 × 105 % and 9.99 × 1013 Jones, respectively, which are all comparable to state-of-the-art ones for all-inorganic perovskite PDs.
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Affiliation(s)
- Zhentao Du
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, P. R. China
- Institute of Materials, Ningbo University of Technology, Ningbo, 315016, P. R. China
| | - Dingfa Fu
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Jie Teng
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Lin Wang
- Institute of Materials, Ningbo University of Technology, Ningbo, 315016, P. R. China
| | - Fengmei Gao
- Institute of Materials, Ningbo University of Technology, Ningbo, 315016, P. R. China
| | - Weiyou Yang
- Institute of Materials, Ningbo University of Technology, Ningbo, 315016, P. R. China
| | - Hui Zhang
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Xiaosheng Fang
- Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China
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16
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Wen Z, Zhai W, Liu C, Lin J, Yu C, Huang Y, Zhang J, Tang C. Controllable synthesis of CsPbI3 nanorods with tunable photoluminescence emission. RSC Adv 2019; 9:24928-24934. [PMID: 35528692 PMCID: PMC9069944 DOI: 10.1039/c9ra04600c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 07/25/2019] [Indexed: 11/21/2022] Open
Abstract
So far the controllable synthesis of one-dimensional (1D) CsPbI3 nanocrystals still remains a challenge due to the fast reaction kinetics of the iodine system as compared with other halide perovskites. Here we report the direct synthesis of high-quality 1D CsPbI3 nanorods by a facile solvothermal method. The as-prepared CsPbI3 nanorods show high purity and uniform morphology with ultrafine diameters down to ∼5 nm. By simply changing the solvothermal reaction conditions, fine-tuning of the sizes of the CsPbI3 nanorods can be well achieved, which leads to the successful modulation of their photoluminescence (PL) emission. The solvothermal reaction offers relatively low crystal growth rate, which is of great importance for the size control of the CsPbI3 nanocrystals. PL quantum yields (PLQYs) and lifetime results indicate that the obtained nanorods maintain a good surface state over long reaction time. Our work not only provides a reliable means for the synthesis of 1D iodine-related perovskites, but also expands the study of size-related PL properties on perovskites nanocrystals. Ultrafine CsPbI3 nanorods with tunable narrow photoluminescence emission are directly synthesized by solvothermal method.![]()
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Affiliation(s)
- Zhikai Wen
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Wei Zhai
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Chang Liu
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Jing Lin
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Chao Yu
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Yang Huang
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Jun Zhang
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
| | - Chengchun Tang
- School of Materials Science and Engineering
- Hebei University of Technology
- Tianjin 300130
- P. R. China
- Hebei Key Laboratory of Boron Nitride Micro and Nano Materials
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