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Fu C, Yang J, Wang J, Luo S, Luo L, Wei H, Li Y, Jiang S, He G. Dual-Mode Semiconductor Device Enabling Optoelectronic Detection and Neuromorphic Processing with Extended Spectral Responsivity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2409406. [PMID: 39318076 DOI: 10.1002/adma.202409406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 08/31/2024] [Indexed: 09/26/2024]
Abstract
High-performance semiconductor devices capable of multiple functions are pivotal in meeting the challenges of miniaturization and integration in advanced technologies. Despite the inherent difficulties of incorporating dual functionality within a single device, a high-performance, dual-mode device is reported. This device integrates an ultra-thin Al2O3 passivation layer with a PbS/Si hybrid heterojunction, which can simultaneously enable optoelectronic detection and neuromorphic operation. In mode 1, the device efficiently separates photo-generated electron-hole pairs, exhibiting an ultra-wide spectral response from ultraviolet (265 nm) to near-infrared (1650 nm) wavelengths. It also reproduces high-quality images of 256 × 256 pixels, achieving a Q-value as low as 0.00437 µW cm- 2 at a light intensity of 8.58 µW cm- 2. Meanwhile, when in mode 2, the as-assembled device with typical persistent photoconductivity (PPC) behavior can act as a neuromorphic device, which can achieve 96.5% accuracy in classifying standard digits underscoring its efficacy in temporal information processing. It is believed that the present dual-function devices potentially advance the multifunctionality and miniaturization of chips for intelligence applications.
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Affiliation(s)
- Can Fu
- School of Materials Science and Engineering, Anhui University, Hefei, 230601, P. R. China
| | - Jiawei Yang
- School of Materials Science and Engineering, Anhui University, Hefei, 230601, P. R. China
| | - Jiang Wang
- School of Microelectronics, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Shenghui Luo
- School of Microelectronics, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Linbao Luo
- School of Microelectronics, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Huanhuan Wei
- School of Materials Science and Engineering, Anhui University, Hefei, 230601, P. R. China
| | - Yujiao Li
- School of Materials Science and Engineering, Anhui University, Hefei, 230601, P. R. China
| | - Shanshan Jiang
- School of Integration Circuits, Anhui University, Hefei, 230601, P. R. China
| | - Gang He
- School of Materials Science and Engineering, Anhui University, Hefei, 230601, P. R. China
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Wang C, Xie Z, Wang Y, Ding Y, Leung MKH, Ng YH. Defects of Metal Halide Perovskites in Photocatalytic Energy Conversion: Friend or Foe? ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2402471. [PMID: 38828743 PMCID: PMC11304286 DOI: 10.1002/advs.202402471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/17/2024] [Indexed: 06/05/2024]
Abstract
Photocatalytic solar-to-fuel conversion over metal halide perovskites (MHPs) has recently attracted much attention, while the roles of defects in MHPs are still under debate. Specifically, the mainstream viewpoint is that the defects are detrimental to photocatalytic performance, while some recent studies show that certain types of defects contribute to photoactivity enhancement. However, a systematic summary of why it is contradictory and how the defects in MHPs affect photocatalytic performance is still lacking. In this review, the innovative roles of defects in MHP photocatalysts are highlighted. First, the origins of defects in MHPs are elaborated, followed by clarifying certain benefits of defects in photocatalysts including optical absorption, charge dynamics, and surface reaction. Afterward, the recent progress on defect-related MHP photocatalysis, i.e., CO2 reduction, H2 generation, pollutant degradation, and organic synthesis is systematically discussed and critically appraised, putting emphasis on their beneficial effects. With defects offering peculiar sets of merits and demerits, the personal opinion on the ongoing challenges is concluded and outlining potentially promising opportunities for engineering defects on MHP photocatalysts. This critical review is anticipated to offer a better understanding of the MHP defects and spur some inspiration for designing efficient MHP photocatalysts.
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Affiliation(s)
- Chunhua Wang
- School of Energy and EnvironmentCity University of Hong Kong83 Tat Chee AvenueKowloonHong Kong SAR999077China
| | - Zhirun Xie
- School of Energy and EnvironmentCity University of Hong Kong83 Tat Chee AvenueKowloonHong Kong SAR999077China
| | - Yannan Wang
- Department of Materials EngineeringKU LeuvenKasteelpark Arenberg 44Leuven3001Belgium
| | - Yang Ding
- College of Materials and Environmental EngineeringHangzhou Dianzi UniversityHangzhou310018China
| | - Michael K. H. Leung
- School of Energy and EnvironmentCity University of Hong Kong83 Tat Chee AvenueKowloonHong Kong SAR999077China
| | - Yun Hau Ng
- School of Energy and EnvironmentCity University of Hong Kong83 Tat Chee AvenueKowloonHong Kong SAR999077China
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3
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Jiang Y, Du HQ, Zhi R, Rothmann MU, Wang Y, Wang C, Liang G, Hu ZY, Cheng YB, Li W. Eliminating Non-Corner-Sharing Octahedral for Efficient and Stable Perovskite Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312157. [PMID: 38288630 DOI: 10.1002/adma.202312157] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/16/2024] [Indexed: 07/13/2024]
Abstract
The metal halide (BX6)4- octahedron, where B represents a metal cation and X represents a halide anion, is regarded as the fundamental structural and functional unit of metal halide perovskites. However, the influence of the way the (BX6)4- octahedra connect to each other has on the structural stability and optoelectronic properties of metal halide perovskite is still unclear. Here, the octahedral connectivity, including corner-, edge-, and face-sharing, of various CsxFA1-xPbI3 (0 ≤ x ≤ 0.3) perovskite films is tuned and reliably characterized through compositional and additive engineering, and with ultralow-dose transmission electron microscopy. It is found that the overall solar cell device performance, the charge carrier lifetime, the open-circuit voltage, and the current density-voltage hysteresis are all improved when the films consist of corner-sharing octahedra, and non-corner sharing phases are suppressed, even in films with the same chemical composition. Additionally, it is found that the structural, optoelectronic, and device performance stabilities are similarly enhanced when non-corner-sharing connectivities are suppressed. This approach, combining macroscopic device tests and microscopic material characterization, provides a powerful tool enabling a thorough understanding of the impact of octahedral connectivity on device performance, and opens a new parameter space for designing high-performance photovoltaic metal halide perovskite devices.
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Affiliation(s)
- Yang Jiang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
- National energy key laboratory for new hydrogen-ammonia energy technologies, Foshan Xianhu Laboratory, Foshan, 528200, P. R. China
| | - Hong-Qiang Du
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
- National energy key laboratory for new hydrogen-ammonia energy technologies, Foshan Xianhu Laboratory, Foshan, 528200, P. R. China
| | - Rui Zhi
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
- National energy key laboratory for new hydrogen-ammonia energy technologies, Foshan Xianhu Laboratory, Foshan, 528200, P. R. China
| | - Mathias Uller Rothmann
- National energy key laboratory for new hydrogen-ammonia energy technologies, Foshan Xianhu Laboratory, Foshan, 528200, P. R. China
| | - Yulong Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Chao Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Guijie Liang
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang, 441053, China
| | - Zhi-Yi Hu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Yi-Bing Cheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
- National energy key laboratory for new hydrogen-ammonia energy technologies, Foshan Xianhu Laboratory, Foshan, 528200, P. R. China
| | - Wei Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
- National energy key laboratory for new hydrogen-ammonia energy technologies, Foshan Xianhu Laboratory, Foshan, 528200, P. R. China
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Qiao L, Guo M, Long R. Unveiling the Dual Role of Humidity: The Interplay with Defects Manipulating the Charge Carrier Lifetime in Metal Halide Perovskites. J Phys Chem Lett 2024; 15:1546-1552. [PMID: 38299495 DOI: 10.1021/acs.jpclett.3c03610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
Humidity has exhibited experimentally either beneficial or detrimental effects on the charge carrier lifetime of CH3NH3PbI3 perovskites, leaving the mechanism unresolved. By using ab initio nonadiabatic molecular dynamics simulations, we unveil the dual role of humidity stemming from the complex interplay between water and defects. Beneficially, water passivates iodine vacancies (VI) or grain boundaries (GBs), mitigating electron trapping by reducing nonadiabatic coupling and delaying charge recombination. However, when VI and GBs coexist, water molecules make the two unsaturated lead atoms approach closer and exacerbate electron trapping by deepening the Pb-dimer electron trap that was created by the VI defect, shortening the carrier lifetime to half of pristine CH3NH3PbI3. The study uncovers the origin of the positive and negative effects of humidity on the charge carrier lifetime of perovskites and offers strategies for improving perovskite devices, particularly by avoiding simultaneous point defects and GBs.
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Affiliation(s)
- Lu Qiao
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing 100875, P. R. China
| | - Meng Guo
- Shandong Computer Science Center (National Supercomputing Center in Jinan), Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250013, P. R. China
- Jinan Institute of Supercomputing Technology, Jinan, Shandong 250103, P. R. China
| | - Run Long
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing 100875, P. R. China
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Ghimire S, Khatun MF, Sachith BM, Okamoto T, Sobhanan J, Subrahmanyam C, Biju V. Highly Luminescent and Stable Halide Perovskite Nanocrystals by Interfacial Defect Passivation and Amphiphilic Ligand Capping. ACS APPLIED MATERIALS & INTERFACES 2023; 15:41081-41091. [PMID: 37581484 DOI: 10.1021/acsami.3c05868] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Halide vacancies cause lattice degradation and nonradiative losses in halide perovskites. In this study, we strategically fill bromide vacancies in CsPbBr3 perovskite nanocrystals with NaBr, KBr, or CsBr at the organic-aqueous interface for hydrophobic ligand-capped nanocrystals or in a polar solvent (2-propanol) for amphiphilic ligand-capped nanocrystals. Energy-dispersive X-ray spectra, powder X-ray diffraction data, and scanning transmission electron microscopy images help us confirm vacancy filling and the structures of samples. The bromide salts increase the photoluminescence quantum yield (98 ± 2%) of CsPbBr3 by decreasing the nonradiative decay rate. Single-particle studies show the quantum yield increase originates from the poorly luminescent nanocrystals becoming highly luminescent after filling vacancies. Furthermore, we tune the optical band gap (ultraviolet-visible-near-infrared) of the hydrophobic ligand-capped nanocrystals by halide exchange at the toluene-water interface using saturated NaCl or NaI solutions, which completes in about 60 min under continuous mixing. In contrast, the amphiphilic ligand accelerates the halide exchange in 2-propanol, suggesting ambipolar functional groups speed up the ion-exchange reaction. The bromide vacancy-filled or halide-exchanged samples in a toluene-water biphasic solvent show higher stability than amphiphilic ligand-capped samples in 2-propanol. This strategy of defect passivation, ion exchange, and ligand chemistry to improve quantum yields and tune band gaps of halide perovskite nanocrystals can be promising for designing stable and water-soluble perovskite samples for solar cells, light-emitting diodes, photodetectors, and photocatalysts.
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Affiliation(s)
- Sushant Ghimire
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0020, Hokkaido, Japan
| | - Most Farida Khatun
- Graduate School of Environmental Science, Hokkaido University, Sapporo 001-0020, Hokkaido, Japan
| | - Bhagyashree M Sachith
- Graduate School of Environmental Science, Hokkaido University, Sapporo 001-0020, Hokkaido, Japan
| | - Takuya Okamoto
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0020, Hokkaido, Japan
- Graduate School of Environmental Science, Hokkaido University, Sapporo 001-0020, Hokkaido, Japan
| | - Jeladhara Sobhanan
- Graduate School of Environmental Science, Hokkaido University, Sapporo 001-0020, Hokkaido, Japan
| | - Ch Subrahmanyam
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, 502284 Sangareddy, Telangana, India
| | - Vasudevanpillai Biju
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0020, Hokkaido, Japan
- Graduate School of Environmental Science, Hokkaido University, Sapporo 001-0020, Hokkaido, Japan
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, 502284 Sangareddy, Telangana, India
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6
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Wei Y, Xin D, Tie S, Yang N, Yuan R, Zheng X. Additive-Induced Synergies of Ion Migration Inhibition and Defect Passivation toward Sensitive Perovskite X-ray Detectors. J Phys Chem Lett 2023; 14:3313-3319. [PMID: 36988394 DOI: 10.1021/acs.jpclett.3c00563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Two-dimensional (2D) Ruddlesden-Popper (RP) metal halide perovskites have emerged as a promising material for X-ray detection. However, defects and ion migration generated nonradiative recombination and high dark current could cause severe performance degradation, which hinders their application. Herein, rubrene was added to the precursor solution of BA2MA3Pb4I13 to modulate the performance of the 2D RP perovskite X-ray detectors. The cation-π interaction between rubrene and perovskite could passivate the defects and inhibit the ion migration, resulting in improved performance and stability. The detectors made with rubrene exhibited a sensitivity of 354.30 μC·Gyair-1 cm-2 and a detection limit of 112.85 nGyair s-1. This work highlights the synergistic effect of rubrene in defect passivation and ion migration inhibition, providing a facile approach toward sensitive perovskite X-ray detectors.
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Affiliation(s)
- Yazhou Wei
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
| | - Deyu Xin
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
| | - Shujie Tie
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
| | - Ning Yang
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
| | - Ruihan Yuan
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
- Sichuan Research Center of New Materials, Chengdu 610200, China
| | - Xiaojia Zheng
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
- Sichuan Research Center of New Materials, Chengdu 610200, China
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7
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Li N, Pratap S, Körstgens V, Vema S, Song L, Liang S, Davydok A, Krywka C, Müller-Buschbaum P. Mapping structure heterogeneities and visualizing moisture degradation of perovskite films with nano-focus WAXS. Nat Commun 2022; 13:6701. [PMID: 36335119 PMCID: PMC9637205 DOI: 10.1038/s41467-022-34426-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 10/25/2022] [Indexed: 11/08/2022] Open
Abstract
Extensive attention has focused on the structure optimization of perovskites, whereas rare research has mapped the structure heterogeneity within mixed hybrid perovskite films. Overlooked aspects include material and structure variations as a function of depth. These depth-dependent local structure heterogeneities dictate their long-term stabilities and efficiencies. Here, we use a nano-focused wide-angle X-ray scattering method for the mapping of film heterogeneities over several micrometers across lateral and vertical directions. The relative variations of characteristic perovskite peak positions show that the top film region bears the tensile strain. Through a texture orientation map of the perovskite (100) peak, we find that the perovskite grains deposited by sequential spray-coating grow along the vertical direction. Moreover, we investigate the moisture-induced degradation products in the perovskite film, and the underlying mechanism for its structure-dependent degradation. The moisture degradation along the lateral direction primarily initiates at the perovskite-air interface and grain boundaries. The tensile strain on the top surface has a profound influence on the moisture degradation. Understanding the correlation between moisture degradation and structural features of perovskite films is essential to improve their stability. Here, the authors apply nano-focused wide-angle X-ray scattering to map the heterogeneities over several micrometers across lateral and vertical directions.
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Affiliation(s)
- Nian Li
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, 85748, Garching, Germany
| | - Shambhavi Pratap
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, 85748, Garching, Germany
| | - Volker Körstgens
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, 85748, Garching, Germany
| | - Sundeep Vema
- Department of Chemical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.,Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Lin Song
- Frontiers Science Center for Flexible Electronics (FSCFE) and Xi'an Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), Youyixilu 127, Xi'an, 710072, Shaanxi, China
| | - Suzhe Liang
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, 85748, Garching, Germany
| | - Anton Davydok
- Helmholtz-Zentrum Hereon, Max-Planck-Straße 1, D-21502, Geesthacht, Germany
| | - Christina Krywka
- Helmholtz-Zentrum Hereon, Max-Planck-Straße 1, D-21502, Geesthacht, Germany
| | - Peter Müller-Buschbaum
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, 85748, Garching, Germany. .,Heinz Maier-Leibnitz-Zentrum, Technische Universität München, 85748, Garching, Germany.
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8
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Zhao H, Ma K, Li J, Fu Y, Qin Y, Zhao D, Dai H, Hu Z, Sun Z, Gao HY. Surface Characterization of the Solution-Processed Organic-Inorganic Hybrid Perovskite Thin Films. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2204271. [PMID: 36228104 DOI: 10.1002/smll.202204271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/13/2022] [Indexed: 06/16/2023]
Abstract
The surface properties of organic-inorganic hybrid perovskites can strongly affect the efficiency and stability of corresponding devices. Even though different surface passivation methods are developed, the microscopic structures of solution-processed perovskite film surfaces are not systematically studied. This study uses low-temperature scanning tunneling microscopy to study the organic-inorganic hybrid perovskite thin films, MA0.4 FA0.6 PbI3 and MAPbI3 , synthesized by the spin-coating method. Flat surface structures, atomic steps, and crystal grain boundaries are resolved at an atomic resolution. The surface imperfections are also characterized, as well as the dominant defects. Simulations on different types of iodine vacancy configurations are performed by density functional theory calculations. In addition, it is observed that the surface iodine lattice structure is unstable during scanning. Tip scanning can also cause the vertical migration of surface iodine ions. The measurements provide the direct visualizations of the surface imperfections of the solution-processed perovskite films. They are essential for understanding the surface-related optoelectronic effects and rationally designing more efficient surface passivation methods.
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Affiliation(s)
- Han Zhao
- Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin University, Tianjin, 300350, China
| | - Kang Ma
- Collaborative Innovation Center of Chemical Science and Engineering, Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Jianmin Li
- Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin University, Tianjin, 300350, China
| | - Yikai Fu
- Department of Physics, School of Science, Tianjin University, Tianjin, 300350, China
| | - Ying Qin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Dongbing Zhao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Haitao Dai
- Department of Physics, School of Science, Tianjin University, Tianjin, 300350, China
| | - Zhixin Hu
- Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin University, Tianjin, 300350, China
| | - Zhixiang Sun
- Center for Joint Quantum Studies and Department of Physics, School of Science, Tianjin University, Tianjin, 300350, China
| | - Hong-Ying Gao
- Collaborative Innovation Center of Chemical Science and Engineering, Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
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9
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Zhang J, Ma H, Zhang X, Ma Y. Light-Induced Degradation of Metal-Free Organic Perovskites. J Phys Chem Lett 2022; 13:9848-9854. [PMID: 36251259 DOI: 10.1021/acs.jpclett.2c02572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Perovskites have attracted great interest in optoelectronics and photonics. As a new class of perovskites, metal-free perovskites have drawn growing attention due to the absence of toxic metal elements in them and their wide chemical diversity. Taking MDABCO-NH4I3 (MDBACO = N-methyl-N'-diazabicyclo[2.2.2]octonium) and MDABCO-NH4Br3 as examples, our first-principles calculations discover two fundamental features of metal-free perovskites that should be crucial for their applications. First, their photoluminescence emission originates from halogen vacancies, instead of the self-trapped exciton generally suggested. Second, in the vicinity of a halogen vacancy, optical excitation from the valence bands to the empty defect bands may cause release of H2 and NH3 molecules, which will not only lead to degradation of the perovskite but also quench its photoluminescence. To prevent the degradation and protect the optoelectronic and photonic performances of metal-free perovskites, short-wavelength illumination needs to be shielded.
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Affiliation(s)
- Jie Zhang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Huizhong Ma
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Xiao Zhang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yuchen Ma
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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Wang X, Bai T, Meng X, Ji S, Zhang R, Zheng D, Yang B, Jiang J, Han KL, Liu F. Filling Chlorine Vacancy with Bromine: A Two-Step Hot-Injection Approach Achieving Defect-Free Hybrid Halogen Perovskite Nanocrystals. ACS APPLIED MATERIALS & INTERFACES 2022; 14:46857-46865. [PMID: 36149762 DOI: 10.1021/acsami.2c12375] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Mixed-halide (Cl and Br) perovskite nanocrystals (NCs) are of particular interest because they hold great potential for use in high-efficiency blue light-emitting diodes (LEDs). Generally, mixed-halide compounds are obtained by either a one-step synthesis with simultaneous addition of both halide precursors or a postsynthetic anion exchange using the opposite halogen. However, both strategies fail to prevent the formation of deep-level Cl vacancy defects, rendering the photoluminescence quantum yields (PLQYs) typically lower than 30%. Here, by optimizing both thermodynamic and kinetic processes, we devise a two-step hot-injection approach, which simultaneously realizes Cl vacancy filling and efficient anion exchange between Cl- and Br-. Both the identity of Br precursors and their injection temperature are revealed to be critical in transforming those highly defective CsPbCl3 NCs to defect-free CsPb(Cl/Br)3. The optimally synthesized NCs exhibit a saturated blue emission at ∼460 nm with a near-unity PLQY and a narrow emission bandwidth of 18 nm, which represents one of the most efficient blue emitters reported so far. The turn-on voltage of the ensuing LEDs is ∼4.0 V, which is lower than those of most other mixed-halide perovskites. In addition, LEDs exhibit a stable electroluminescence peak at 460 nm under a high bias voltage of 8.0 V. We anticipate that our findings will provide new insights into the materials design strategies for producing high-optoelectronic-quality Cl-containing perovskites.
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Affiliation(s)
- Xiaochen Wang
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China
| | - Tianxin Bai
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China
| | - Xuan Meng
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China
| | - Sujun Ji
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China
| | - Ruiling Zhang
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China
| | - Daoyuan Zheng
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China
| | - Bin Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, P. R. China
| | - Junke Jiang
- Materials Simulation and Modelling, Department of Applied Physics, and Center for Computational Energy Research, Department of Applied Physics, Eindhoven University of Technology, Eindhoven 5600 MB, The Netherlands
| | - Ke-Li Han
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, P. R. China
| | - Feng Liu
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, P. R. China
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11
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Xue W, Zhang X, Zhu W, Zhang X, Wang W, Peng L, Ma X, Li Y. Large-scale Heterogeneous Synthesis of Monodisperse High Performance Colloidal CsPbBr3 Nanocrystals. FUNDAMENTAL RESEARCH 2022. [DOI: 10.1016/j.fmre.2022.05.030] [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] Open
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12
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Bao C, Gao F. Physics of defects in metal halide perovskites. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2022; 85:096501. [PMID: 35763940 DOI: 10.1088/1361-6633/ac7c7a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Metal halide perovskites are widely used in optoelectronic devices, including solar cells, photodetectors, and light-emitting diodes. Defects in this class of low-temperature solution-processed semiconductors play significant roles in the optoelectronic properties and performance of devices based on these semiconductors. Investigating the defect properties provides not only insight into the origin of the outstanding performance of perovskite optoelectronic devices but also guidance for further improvement of performance. Defects in perovskites have been intensely studied. Here, we review the progress in defect-related physics and techniques for perovskites. We survey the theoretical and computational results of the origin and properties of defects in perovskites. The underlying mechanisms, functions, advantages, and limitations of trap state characterization techniques are discussed. We introduce the effect of defects on the performance of perovskite optoelectronic devices, followed by a discussion of the mechanism of defect treatment. Finally, we summarize and present key challenges and opportunities of defects and their role in the further development of perovskite optoelectronic devices.
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Affiliation(s)
- Chunxiong Bao
- Department of Physics, Chemistry, and Biology, Linköping University, Sweden
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing, 210093, People's Republic of China
| | - Feng Gao
- Department of Physics, Chemistry, and Biology, Linköping University, Sweden
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13
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Zhang W, Li QS, Li ZS. Atomistic Mechanism of Surface-Defect Passivation: Toward Stable and Efficient Perovskite Solar Cells. J Phys Chem Lett 2022; 13:6686-6693. [PMID: 35848543 DOI: 10.1021/acs.jpclett.2c01762] [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
Molecular engineering has been demonstrated to be a predominant strategy for augmenting the long-term stability and passivating adverse defects for perovskite solar cells (PSCs). Here, using density functional theory calculations combined with ab initio molecular dynamics (AIMD) simulations, the passivation effects of bidentate passivation molecules, 2-MP and 2-MDEP, on the iodine vacancy MAPbI3 were comprehensively investigated. We demonstrate that 2-MDEP engenders stronger adsorption and localized charges on Pb atoms because the separated binding sites match with the MAPbI3 lattice. Moreover, the activation barriers for ion migrations are improved by the passivation of 2-MP and 2-MDEP. Furthermore, AIMD simulations verify the improved structural stability and restrained nonradiative recombination after passivation. More importantly, the durable Pb-heteroatom interactions at the interface and stronger hydrophobicity endow 2-MDEP with more remarkable shielding effects against moisture compared to those of 2-MP. This work deepens our understanding of the passivation effects and paves the way for the design of passivation molecules toward the attainment of efficient and stable PSCs.
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Affiliation(s)
- Weiyi Zhang
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081 Beijing, China
| | - Quan-Song Li
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081 Beijing, China
| | - Ze-Sheng Li
- Key Laboratory of Cluster Science of Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081 Beijing, China
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14
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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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15
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Zhang W, Ono LK, Xue J, Qi Y. Atomic Level Insights into Metal Halide Perovskite Materials by Scanning Tunneling Microscopy and Spectroscopy. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Wei Zhang
- Energy Materials and Surface Sciences Unit (EMSSU) Okinawa Institute of Science and Technology Graduate University (OIST) 1919-1 Tancha, Onna-son Kunigami-gun Okinawa 904-0495 Japan
| | - Luis K. Ono
- Energy Materials and Surface Sciences Unit (EMSSU) Okinawa Institute of Science and Technology Graduate University (OIST) 1919-1 Tancha, Onna-son Kunigami-gun Okinawa 904-0495 Japan
| | - Jiamin Xue
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China
| | - Yabing Qi
- Energy Materials and Surface Sciences Unit (EMSSU) Okinawa Institute of Science and Technology Graduate University (OIST) 1919-1 Tancha, Onna-son Kunigami-gun Okinawa 904-0495 Japan
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16
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Gao Y, Su X, Zhang J, Tan H, Sun J, Ouyang J, Na N. One-Step Prepared Water-Resistant Organic-Inorganic-Hybrid Perovskite Quantum Dots with Zn-Oxygen Vacancies for Attempts at Nitrogen Fixation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2103773. [PMID: 34558187 DOI: 10.1002/smll.202103773] [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: 06/29/2021] [Revised: 08/23/2021] [Indexed: 06/13/2023]
Abstract
Applying organic-inorganic hybrid perovskite quantum dots (PQDs) to photocatalytic nitrogen fixation is hindered long-term by the inherent instability in water and tedious preparations. Here, to realize PQD-catalyzed photocatalytic N2 reduction reaction (NRR), water-resistant PQDs are simply prepared through one-step electrospray synthesis in microseconds. During the fast electrospray, PQDs of Zn/PbO-doped methylammonium lead bromide (Zn/PbO/PC-Zn/MAPbBr3 , MA: CH3 NH3 ) are prepared and part-encapsulated by polycarbonate. The synthesis maintains good water resistance, whose restriction on charge transport is overcome skillfully. Simultaneously, substitution of Zn with Pb on water-resistant surface is also achieved, which fabricates new Zn-oxygen vacancies (Zn-OVs) with Zn/PbO-Zn/MAPbBr3 type I heterojunction. This facilitates efficient electron transfer from internal heterojunction interface of Zn/MAPbBr3 PQDs to the surface of Zn/PbO. Demonstrated by theoretical calculations, Zn-OVs promote chemisorption and polarization of N2 . In addition, s-electrons in exposed Zn become active due to changes of electron filling of Zn orbitals under OVs' co-doping. Thus, photocatalytic N2 reduction reaction catalyzed by organic-inorganic hybrid PQDs is first achieved in aqueous phase without sacrificial agents being added. This initiates possibilities for photocatalytic applications of organic-inorganic hybrid PQDs in aqueous phase.
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Affiliation(s)
- Yixuan Gao
- Key Laboratory of Radiopharmaceuticals, Key Laboratory of Theoretical and Computational Photochemistry, College of Chemistry, Beijing Normal University, No.19, Xinjiekouwai Street, Haidian District, Beijing, 100875, P. R. China
| | - Xiao Su
- Key Laboratory of Radiopharmaceuticals, Key Laboratory of Theoretical and Computational Photochemistry, College of Chemistry, Beijing Normal University, No.19, Xinjiekouwai Street, Haidian District, Beijing, 100875, P. R. China
| | - Jiangwei Zhang
- Dalian National Laboratory for Clean Energy & State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), 457 Zhongshan Road, Dalian City, Liaoning Province, 116023, China
| | - Hongwei Tan
- Key Laboratory of Radiopharmaceuticals, Key Laboratory of Theoretical and Computational Photochemistry, College of Chemistry, Beijing Normal University, No.19, Xinjiekouwai Street, Haidian District, Beijing, 100875, P. R. China
| | - Jianghui Sun
- Key Laboratory of Radiopharmaceuticals, Key Laboratory of Theoretical and Computational Photochemistry, College of Chemistry, Beijing Normal University, No.19, Xinjiekouwai Street, Haidian District, Beijing, 100875, P. R. China
| | - Jin Ouyang
- Key Laboratory of Radiopharmaceuticals, Key Laboratory of Theoretical and Computational Photochemistry, College of Chemistry, Beijing Normal University, No.19, Xinjiekouwai Street, Haidian District, Beijing, 100875, P. R. China
| | - Na Na
- Key Laboratory of Radiopharmaceuticals, Key Laboratory of Theoretical and Computational Photochemistry, College of Chemistry, Beijing Normal University, No.19, Xinjiekouwai Street, Haidian District, Beijing, 100875, P. R. China
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17
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Zhang W, Ono LK, Xue J, Qi Y. Atomic Level Insights into Metal Halide Perovskite Materials by Scanning Tunneling Microscopy and Spectroscopy. Angew Chem Int Ed Engl 2021; 61:e202112352. [PMID: 34647403 DOI: 10.1002/anie.202112352] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Indexed: 11/07/2022]
Abstract
Metal halide perovskite materials (MHPMs) have attracted significant attention because of their superior optoelectronic properties and versatile applications. The power conversion efficiency of MHPM solar cells (PSCs) has skyrocketed to 25.5 %. Although the performance of PSCs is already competitive, several important challenges still need to be solved to realize commercial applications. A thorough understanding of surface atomic structures and structure-property relationships is at the heart of these remaining issues. Scanning tunneling microscopy (STM) and spectroscopy (STS) can be used to characterize the surface properties of MHPMs, which can offer crucial insights into MHPMs at the atomic scale. This Review summarizes recent progress in STM and STS studies on MHPMs, with a focus on the surface properties. We provide understanding from the comparative perspective of several different MHPMs. We also highlight a series of novel phenomena observed by STM and STS. Finally, we outline a few research topics of primary importance for future studies.
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Affiliation(s)
- Wei Zhang
- Energy Materials and Surface Sciences Unit (EMSSU), Okinawa Institute of Science and Technology Graduate University (OIST), 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa, 904-0495, Japan
| | - Luis K Ono
- Energy Materials and Surface Sciences Unit (EMSSU), Okinawa Institute of Science and Technology Graduate University (OIST), 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa, 904-0495, Japan
| | - Jiamin Xue
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Yabing Qi
- Energy Materials and Surface Sciences Unit (EMSSU), Okinawa Institute of Science and Technology Graduate University (OIST), 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa, 904-0495, Japan
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18
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Arandiyan H, S Mofarah S, Sorrell CC, Doustkhah E, Sajjadi B, Hao D, Wang Y, Sun H, Ni BJ, Rezaei M, Shao Z, Maschmeyer T. Defect engineering of oxide perovskites for catalysis and energy storage: synthesis of chemistry and materials science. Chem Soc Rev 2021; 50:10116-10211. [PMID: 34542117 DOI: 10.1039/d0cs00639d] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Oxide perovskites have emerged as an important class of materials with important applications in many technological areas, particularly thermocatalysis, electrocatalysis, photocatalysis, and energy storage. However, their implementation faces numerous challenges that are familiar to the chemist and materials scientist. The present work surveys the state-of-the-art by integrating these two viewpoints, focusing on the critical role that defect engineering plays in the design, fabrication, modification, and application of these materials. An extensive review of experimental and simulation studies of the synthesis and performance of oxide perovskites and devices containing these materials is coupled with exposition of the fundamental and applied aspects of defect equilibria. The aim of this approach is to elucidate how these issues can be integrated in order to shed light on the interpretation of the data and what trajectories are suggested by them. This critical examination has revealed a number of areas in which the review can provide a greater understanding. These include considerations of (1) the nature and formation of solid solutions, (2) site filling and stoichiometry, (3) the rationale for the design of defective oxide perovskites, and (4) the complex mechanisms of charge compensation and charge transfer. The review concludes with some proposed strategies to address the challenges in the future development of oxide perovskites and their applications.
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Affiliation(s)
- Hamidreza Arandiyan
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia. .,Centre for Applied Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, 124 La Trobe Street, Melbourne, VIC, Australia.
| | - Sajjad S Mofarah
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW 2052, Australia.
| | - Charles C Sorrell
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW 2052, Australia.
| | - Esmail Doustkhah
- National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Baharak Sajjadi
- Department of Chemical Engineering, University of Mississippi, University, MS, 38677, USA
| | - Derek Hao
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Yuan Wang
- Centre for Applied Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, 124 La Trobe Street, Melbourne, VIC, Australia. .,School of Chemistry, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Hongyu Sun
- Department of Micro- and Nanotechnology, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Bing-Jie Ni
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Mehran Rezaei
- Catalyst and Nanomaterials Research Laboratory (CNMRL), School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Zongping Shao
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, WA 6845, Australia. .,State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Thomas Maschmeyer
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia.
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19
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Ghimire S, Klinke C. Two-dimensional halide perovskites: synthesis, optoelectronic properties, stability, and applications. NANOSCALE 2021; 13:12394-12422. [PMID: 34240087 DOI: 10.1039/d1nr02769g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Halide perovskites are promising materials for light-emitting and light-harvesting applications. In this context, two-dimensional perovskites such as nanoplatelets or Ruddlesden-Popper and Dion-Jacobson layered structures are important because of their structural flexibility, electronic confinement, and better stability. This review article brings forth an extensive overview of the recent developments of two-dimensional halide perovskites both in the colloidal and non-colloidal forms. We outline the strategy to synthesize and control the shape and discuss different crystalline phases and optoelectronic properties. We review the applications of two-dimensional perovskites in solar cells, light-emitting diodes, lasers, photodetectors, and photocatalysis. Besides, we also emphasize the moisture, thermal, and photostability of these materials in comparison to their three-dimensional analogs.
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Affiliation(s)
- Sushant Ghimire
- Institute of Physics, University of Rostock, 18059 Rostock, Germany.
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20
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Luo D, Li X, Dumont A, Yu H, Lu ZH. Recent Progress on Perovskite Surfaces and Interfaces in Optoelectronic Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006004. [PMID: 34145654 DOI: 10.1002/adma.202006004] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 01/07/2021] [Indexed: 06/12/2023]
Abstract
Surfaces and heterojunction interfaces, where defects and energy levels dictate charge-carrier dynamics in optoelectronic devices, are critical for unlocking the full potential of perovskite semiconductors. In this progress report, chemical structures of perovskite surfaces are discussed and basic physical rules for the band alignment are summarized at various perovskite interfaces. Common perovskite surfaces are typically decorated by various compositional and structural defects such as residual surface reactants, discrete nanoclusters, reactions by products, vacancies, interstitials, antisites, etc. Some of these surface species induce deep-level defect states in the forbidden band forming very harmful charge-carrier traps and affect negatively the interface band alignments for achieving optimal device performance. Herein, an overview of research progresses on surface and interface engineering is provided to minimize deep-level defect states. The reviewed subjects include selection of interface and substrate buffer layers for growing better crystals, materials and processing methods for surface passivation, the surface catalyst for microstructure transformations, organic semiconductors for charge extraction or injection, heterojunctions with wide bandgap perovskites or nanocrystals for mitigating defects, and electrode interlayer for preventing interdiffusion and reactions. These surface and interface engineering strategies are shown to be critical in boosting device performance for both solar cells and light-emitting diodes.
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Affiliation(s)
- Deying Luo
- Dr. D. Luo, Prof. H. Yu, Prof. Z.-H. Lu, School of Microelectronics, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Dr. D. Luo, Dr. X. Li, A. Dumont, Prof. Z.-H. Lu, Department of Materials Science and Engineering, University of Toronto, Toronto, M5G 3E4, Canada
| | - Xiaoyue Li
- Dr. D. Luo, Dr. X. Li, A. Dumont, Prof. Z.-H. Lu, Department of Materials Science and Engineering, University of Toronto, Toronto, M5G 3E4, Canada
- Dr. X. Li, Prof. Z.-H. Lu, Department of Physics, Center for Optoelectronics Engineering Research, Yunnan University, Kunming, 650091, P. R. China
| | - Antoine Dumont
- Dr. D. Luo, Dr. X. Li, A. Dumont, Prof. Z.-H. Lu, Department of Materials Science and Engineering, University of Toronto, Toronto, M5G 3E4, Canada
| | - Hongyu Yu
- Dr. D. Luo, Prof. H. Yu, Prof. Z.-H. Lu, School of Microelectronics, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Zheng-Hong Lu
- Dr. D. Luo, Prof. H. Yu, Prof. Z.-H. Lu, School of Microelectronics, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
- Dr. D. Luo, Dr. X. Li, A. Dumont, Prof. Z.-H. Lu, Department of Materials Science and Engineering, University of Toronto, Toronto, M5G 3E4, Canada
- Dr. X. Li, Prof. Z.-H. Lu, Department of Physics, Center for Optoelectronics Engineering Research, Yunnan University, Kunming, 650091, P. R. China
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21
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Lei Y, Xu Y, Wang M, Zhu G, Jin Z. Origin, Influence, and Countermeasures of Defects in Perovskite Solar Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005495. [PMID: 33759357 DOI: 10.1002/smll.202005495] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/24/2020] [Indexed: 05/08/2023]
Abstract
Defects are considered to be one of the most significant factors that compromise the power conversion efficiencies and long-term stability of perovskite solar cells. Therefore, it is urgent to have a profound understanding of their formation and influence mechanism, so as to take corresponding measures to suppress or even completely eliminate their adverse effects on device performance. Herein, the possible origins of the defects in metal halide perovskite films and their impacts on the device performance are analyzed, and then various methods to reduce defect density are introduced in detail. Starting from the internal and interfacial aspects of the metal halide perovskite films, several ways to improve device performance and long-term stability including additive engineering, surface passivation, and other physical treatments (annealing engineering), etc., are further elaborated. Finally, the further understanding of defects and the development trend of passivation strategies are prospected.
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Affiliation(s)
- Yutian Lei
- School of Physical Science and Technology & Key Laboratory of Special Function Materials and Structure Design (MoE) & National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Youkui Xu
- School of Physical Science and Technology & Key Laboratory of Special Function Materials and Structure Design (MoE) & National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Meng Wang
- School of Physical Science and Technology & Key Laboratory of Special Function Materials and Structure Design (MoE) & National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Ge Zhu
- Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, Key Laboratory of Photosensitive Materials & Devices of Liaoning Province, College of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian, 116600, China
| | - Zhiwen Jin
- School of Physical Science and Technology & Key Laboratory of Special Function Materials and Structure Design (MoE) & National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou, 730000, China
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22
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Younis A, Lin CH, Guan X, Shahrokhi S, Huang CY, Wang Y, He T, Singh S, Hu L, Retamal JRD, He JH, Wu T. Halide Perovskites: A New Era of Solution-Processed Electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005000. [PMID: 33938612 DOI: 10.1002/adma.202005000] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/29/2020] [Indexed: 05/26/2023]
Abstract
Organic-inorganic mixed halide perovskites have emerged as an excellent class of materials with a unique combination of optoelectronic properties, suitable for a plethora of applications ranging from solar cells to light-emitting diodes and photoelectrochemical devices. Recent works have showcased hybrid perovskites for electronic applications through improvements in materials design, processing, and device stability. Herein, a comprehensive up-to-date review is presented on hybrid perovskite electronics with a focus on transistors and memories. These applications are supported by the fundamental material properties of hybrid perovskite semiconductors such as tunable bandgap, ambipolar charge transport, reasonable mobility, defect characteristics, and solution processability, which are highlighted first. Then, recent progresses on perovskite-based transistors are reviewed, covering aspects of fabrication process, patterning techniques, contact engineering, 2D versus 3D material selection, and device performance. Furthermore, applications of perovskites in nonvolatile memories and artificial synaptic devices are presented. The ambient instability of hybrid perovskites and the strategies to tackle this bottleneck are also discussed. Finally, an outlook and opportunities to develop perovskite-based electronics as a competitive and feasible technology are highlighted.
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Affiliation(s)
- Adnan Younis
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
- Department of Physics, College of Science, University of Bahrain, P.O. Box 32038, Sakhir Campus, Zallaq, Kingdom of Bahrain
| | - Chun-Ho Lin
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Xinwei Guan
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Shamim Shahrokhi
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Chien-Yu Huang
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Yutao Wang
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Tengyue He
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Simrjit Singh
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Long Hu
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Jose Ramon Duran Retamal
- Computer, Electrical and Mathematical Sciences and Engineering, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Jr-Hau He
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China
| | - Tom Wu
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
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Chen P, Huang Y, Shi Z, Chen X, Li N. Improving the Catalytic CO 2 Reduction on Cs 2AgBiBr 6 by Halide Defect Engineering: A DFT Study. MATERIALS (BASEL, SWITZERLAND) 2021; 14:2469. [PMID: 34064582 PMCID: PMC8151533 DOI: 10.3390/ma14102469] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/05/2021] [Accepted: 05/07/2021] [Indexed: 11/23/2022]
Abstract
Pb-free double halide perovskites have drawn immense attention in the potential photocatalytic application, due to the regulatable bandgap energy and nontoxicity. Herein, we first present a study for CO2 conversion on Pb-free halide perovskite Cs2AgBiBr6 under state-of-the-art first-principles calculation with dispersion correction. Compared with the previous CsPbBr3, the cell parameter of Cs2AgBiBr6 underwent only a small decrease of 3.69%. By investigating the adsorption of CO, CO2, NO, NO2, and catalytic reduction of CO2, we found Cs2AgBiBr6 exhibits modest adsorption ability and unsatisfied potential determining step energy of 2.68 eV in catalysis. We adopted defect engineering (Cl doping, I doping and Br-vacancy) to regulate the adsorption and CO2 reduction behavior. It is found that CO2 molecule can be chemically and preferably adsorbed on Br-vacancy doped Cs2AgBiBr6 with a negative adsorption energy of -1.16 eV. Studying the CO2 reduction paths on pure and defect modified Cs2AgBiBr6, Br-vacancy is proved to play a critical role in decreasing the potential determining step energy to 1.25 eV. Finally, we probe into the electronic properties and demonstrate Br-vacancy will not obviously promote the process of catalysis deactivation, as there is no formation of deep-level electronic states acting as carrier recombination center. Our findings reveal the process of gas adsorption and CO2 reduction on novel Pb-free Cs2AgBiBr6, and propose a potential strategy to improve the efficiency of catalytic CO2 conversion towards practical implementation.
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Affiliation(s)
- Pengfei Chen
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China; (P.C.); (Y.H.); (Z.S.); (X.C.)
- Center of Innovation and Entrepreneurship, Wuhan University of Technology, Wuhan 430070, China
| | - Yiao Huang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China; (P.C.); (Y.H.); (Z.S.); (X.C.)
- Center of Innovation and Entrepreneurship, Wuhan University of Technology, Wuhan 430070, China
| | - Zuhao Shi
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China; (P.C.); (Y.H.); (Z.S.); (X.C.)
- Center of Innovation and Entrepreneurship, Wuhan University of Technology, Wuhan 430070, China
- Shenzhen Research Institute, Wuhan University of Technology, Shenzhen 518000, China
| | - Xingzhu Chen
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China; (P.C.); (Y.H.); (Z.S.); (X.C.)
- Shenzhen Research Institute, Wuhan University of Technology, Shenzhen 518000, China
| | - Neng Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China; (P.C.); (Y.H.); (Z.S.); (X.C.)
- Shenzhen Research Institute, Wuhan University of Technology, Shenzhen 518000, China
- State Center for International Cooperation on Designer Low-Carbon & Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
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Yang JJ, Liu XY, Li ZW, Frauenheim T, Yam C, Fang WH, Cui G. The spin-orbit interaction controls photoinduced interfacial electron transfer in fullerene-perovskite heterojunctions: C 60versus C 70. Phys Chem Chem Phys 2021; 23:6536-6543. [PMID: 33690742 DOI: 10.1039/d0cp06579j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, we used collinear and noncollinear density functional theory (DFT) methods to explore the interfacial properties of two heterojunctions between a fullerene (C60 and C70) and the MAPbI3(110) surface. Methodologically, consideration of the spin-orbit interaction has been proven to be required to obtain accurate energy-level alignment and interfacial carrier dynamics between fullerenes and perovskites in hybrid perovskite solar cells including heavy atoms (such as Pb atoms). Both heterojunctions are predicted to be the same type-II heterojunction, but the interfacial electron transfer process from MAPbI3 to C60 is completely distinct from that to C70. In the former, the interfacial electron transfer is slow because of the associated large energy gap, and the excited electrons are thus trapped in MAPbI3 for a while. In contrast, in the latter, the smaller energy gap induces ultrafast electron transfer from MAPbI3 to C70. These points are further supported by DFT-based nonadiabatic dynamics simulations including the spin-orbit coupling (SOC) effects. These gained insights could help rationally design superior fullerene-perovskite interfaces to achieve high power conversion efficiencies of fullerene-perovskite solar cells.
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Affiliation(s)
- Jia-Jia Yang
- College of Chemistry, Beijing Normal University, Beijing 100875, China.
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25
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Lin H, Wang Z, Wang H, Gao J, Ding H, Xu Y, Li Q, Guo Q, Ma Z, Yang X, Pan M. In Situ Observation of Stepwise C-H Bond Scission: Deciphering the Catalytic Selectivity of Ethylbenzene-to-Styrene Conversion on TiO 2. J Phys Chem Lett 2020; 11:9850-9855. [PMID: 33170716 DOI: 10.1021/acs.jpclett.0c02729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The conversion of light alkanes to olefins is crucial to the chemical industry. The quest for improved catalytic performance for this conversion is motivated by current drawbacks including: expensive noble metal catalysts, poor conversion, low selectivity, and fast decay of efficiency. The in situ visualization of complex catalysis at the atomic level is therefore a major advance in the rational framework upon building the future catalysts. Herein, the catalytic C-H bond activations of ethylbenzene on TiO2(110)-(1 × 1) were explored with high-resolution scanning tunneling microscopy and first-principles calculations. We report that the first C-H bond scission is a two-step process that can be triggered by either heat or ultraviolet light at 80 K, with near 100% selectivity of β-CH bond cleavage. This work provides fundamental understanding of C-H bonds cleavage of ethylbenzene on metal oxides, and it may promote the design of new catalysts for selective styrene production under mild conditions.
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Affiliation(s)
- Haiping Lin
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China
- Institute of Functional Nano and Soft Materials & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Zhijun Wang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Haochen Wang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianzhi Gao
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China
| | - Haoxuan Ding
- School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - Yong Xu
- Institute of Functional Nano and Soft Materials & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Qing Li
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China
- Institute of Functional Nano and Soft Materials & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Qing Guo
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zhibo Ma
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xueming Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Minghu Pan
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China
- School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
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26
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Azam M, Yue S, Xu R, Yang S, Liu K, Huang Y, Sun Y, Hassan A, Ren K, Tan F, Wang Z, Lei Y, Qu S, Wang Z. Realization of Moisture-Resistive Perovskite Films for Highly Efficient Solar Cells Using Molecule Incorporation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:39063-39073. [PMID: 32805927 DOI: 10.1021/acsami.0c09046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The development of highly crystalline perovskite films with large crystal grains and few surface defects is attractive to obtain high-performance perovskite solar cells (PSCs) with good device stability. Herein, we simultaneously improve the power conversion efficiency (PCE) and humid stability of the CH3NH3PbI3 (CH3NH3 = MA) device by incorporating small organic molecule IT-4F into the perovskite film and using a buffer layer of PFN-Br. The presence of IT-4F in the perovskite film can successfully improve crystallinity and enhance the grain size, leading to reduced trap states and longer lifetime of the charge carrier, and make the perovskite film hydrophobic. Meanwhile, as a buffer layer, PFN-Br can accelerate the separation of excitons and promote the transfer process of electrons from the active layer to the cathode. As a consequence, the PSCs exhibit a remarkably improved PCE of 20.55% with reduced device hysteresis. Moreover, the moisture-resistive film-based devices retain about 80% of their initial efficiency after 30 days of storage in relative humidity of 10-30% without encapsulation.
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Affiliation(s)
- Muhammad Azam
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Shizhong Yue
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rui Xu
- Institut für Physik & IMN MacroNano@ (ZIK), Technische Universität Ilmenau, Ilmenau 98693, Germany
| | - Shuaijian Yang
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kong Liu
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanbin Huang
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yang Sun
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ali Hassan
- Key Laboratory of Optoelectronic Devices and Systems of Guangdong Province & Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Kuankuan Ren
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Furui Tan
- Key Laboratory of Photovoltaic Materials, Department of Physics and Electronics, Henan University, Henan 475004, China
| | - Zhijie Wang
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Lei
- Institut für Physik & IMN MacroNano@ (ZIK), Technische Universität Ilmenau, Ilmenau 98693, Germany
| | - Shengchun Qu
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhanguo Wang
- Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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27
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Dong Y, Li K, Luo W, Zhu C, Guan H, Wang H, Wang L, Deng K, Zhou H, Xie H, Bai Y, Li Y, Chen Q. The Role of Surface Termination in Halide Perovskites for Efficient Photocatalytic Synthesis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuanyuan Dong
- Experimental Center of Advanced Materials Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P. R. China
| | - Kailin Li
- Experimental Center of Advanced Materials Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P. R. China
| | - Wenjia Luo
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu 610500 P. R. China
| | - Cheng Zhu
- Experimental Center of Advanced Materials Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P. R. China
| | - Haoliang Guan
- Experimental Center of Advanced Materials Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P. R. China
| | - Hao Wang
- Experimental Center of Advanced Materials Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P. R. China
| | - Lanning Wang
- Experimental Center of Advanced Materials Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P. R. China
| | - Kailin Deng
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology Chinese Academy of Agricultural Sciences Beijing 100193 P. R. China
| | - Huanping Zhou
- Department of Materials Science and Engineering College of Engineering Peking University Beijing 100871 P. R. China
| | - Haipeng Xie
- School of Physics and Electronics Central South University Changsha Hunan 410083 P. R. China
| | - Yang Bai
- Experimental Center of Advanced Materials Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P. R. China
| | - Yujing Li
- Experimental Center of Advanced Materials Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P. R. China
| | - Qi Chen
- Experimental Center of Advanced Materials Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems School of Materials Science and Engineering Beijing Institute of Technology Beijing 100081 P. R. China
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28
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Geng W, Tong C, Zhang Y, Liu L. Theoretical Progress on the Relationship between the Structures and Properties of Perovskite Solar Cells. ADVANCED THEORY AND SIMULATIONS 2020. [DOI: 10.1002/adts.202000022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Wei Geng
- Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu Sichuan 610054 China
- School of Physics Beihang University Beijing 100191 China
| | - Chuan‐Jia Tong
- School of Physics Beihang University Beijing 100191 China
| | - Yanning Zhang
- Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu Sichuan 610054 China
| | - Li‐Min Liu
- School of Physics Beihang University Beijing 100191 China
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29
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Dong Y, Li K, Luo W, Zhu C, Guan H, Wang H, Wang L, Deng K, Zhou H, Xie H, Bai Y, Li Y, Chen Q. The Role of Surface Termination in Halide Perovskites for Efficient Photocatalytic Synthesis. Angew Chem Int Ed Engl 2020; 59:12931-12937. [PMID: 32367688 DOI: 10.1002/anie.202002939] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/24/2020] [Indexed: 11/08/2022]
Abstract
Halide perovskites have received attention in the field of photocatalysis owing to their excellent optoelectronic properties. However, the semiconductor properties of halide perovskite surfaces and the influence on photocatalytic performance have not been systematically clarified. Now, the conversion of triose (such as 1,3-dihydroxyacetone (DHA)) is employed as a model reaction to explore the surface termination of MAPbI3 . By rational design of the surface termination for MAPbI3 , the production rate of butyl lactate is substantially improved to 7719 μg g-1 cat. h-1 under visible-light illumination. The MAI-terminated MAPbI3 surface governs the photocatalytic performance. Specially, MAI-terminated surface is susceptible to iodide oxidation, which thus promotes the exposure of PbII as active sites for this photocatalysis process. Moreover, MAI-termination induces a p-doping effect near the surface for MAPbI3 , which facilitates carrier transport and thus photosynthesis.
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Affiliation(s)
- Yuanyuan Dong
- Experimental Center of Advanced Materials, Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Kailin Li
- Experimental Center of Advanced Materials, Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Wenjia Luo
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, P. R. China
| | - Cheng Zhu
- Experimental Center of Advanced Materials, Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Haoliang Guan
- Experimental Center of Advanced Materials, Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Hao Wang
- Experimental Center of Advanced Materials, Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Lanning Wang
- Experimental Center of Advanced Materials, Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Kailin Deng
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs/Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, 100193, P. R. China
| | - Huanping Zhou
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, 100871, P. R. China
| | - Haipeng Xie
- School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Yang Bai
- Experimental Center of Advanced Materials, Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Yujing Li
- Experimental Center of Advanced Materials, Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Qi Chen
- Experimental Center of Advanced Materials, Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
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30
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Zhou H, Wang J, Wang M, Lin S. Competing Dissolution Pathways and Ligand Passivation-Enhanced Interfacial Stability of Hybrid Perovskites with Liquid Water. ACS APPLIED MATERIALS & INTERFACES 2020; 12:23584-23594. [PMID: 32326693 DOI: 10.1021/acsami.0c03532] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Material instability issues, especially moisture degradation in ambient operating environments, limit the practical application of hybrid perovskite in photovoltaic and light-emitting devices. Very recent experiments demonstrate that ligand passivation can effectively improve the surface moisture tolerance of hybrid perovskites. In this work, the interfacial stability of as-synthesized pristine and alkylammonium-passivated methylammonium lead iodide (MAPbI3) with liquid water is systematically investigated using molecular dynamics simulations and reaction kinetics models. Interestingly, the more hydrophilic [PbI2]0 surface is more stable than the less hydrophilic [MAI]0 surface because of the higher polarity of the former surface. Linear alkylammoniums significantly stabilize the [MAI]0 surface with highly reduced (by 1-2 orders of magnitude) dissociation rates of both MA+ and ligands themselves, while branched ligands, surprisingly, lead to higher dissociation rates as the surface coverage increases. Such anomalous behavior is attributed to the aggregation-assisted dissolution of surfactant-like ligands as micelles during the degradation process. Short-chain linear alkylammonium at the full surface coverage is found to be the optimal ligand to stabilize the [MAI]0 surface. This work not only provides fundamental insights into the ionic dissolution pathways and mechanisms of hybrid perovskites in water but also inspires the design of highly stable hybrid perovskites with ligand passivation layers. The computational framework developed here is also transferrable to the investigation of surface passivation chemistry for weak ionic materials in general.
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Affiliation(s)
- Huanhuan Zhou
- Department of Mechanical Engineering, Materials Science and Engineering Program, FAMU-FSU College of Engineering, Florida State University, Tallahassee, Florida 32310, United States
| | - Jingfan Wang
- Department of Mechanical Engineering, Materials Science and Engineering Program, FAMU-FSU College of Engineering, Florida State University, Tallahassee, Florida 32310, United States
| | - Mingchao Wang
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Shangchao Lin
- Institute of Engineering Thermophysics, School of Mechanical and Power Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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31
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Ono LK, Liu S(F, Qi Y. Verringerung schädlicher Defekte für leistungsstarke Metallhalogenid‐Perowskit‐Solarzellen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201905521] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Luis K. Ono
- Energy Materials and Surface Sciences Unit (EMSSU)Okinawa Institute of Science and Technology Graduate University (OIST) 1919-1 Tancha Onna-son, Kunigami-gun Okinawa 904-0495 Japan
| | - Shengzhong (Frank) Liu
- Dalian National Laboratory for Clean Energy, iChEMDalian Institute of Chemical PhysicsChinese Academy of Sciences 457 Zhongshan Road 116023 Dalian China
- Key Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationShaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal University Xi'an 710119 China
| | - Yabing Qi
- Energy Materials and Surface Sciences Unit (EMSSU)Okinawa Institute of Science and Technology Graduate University (OIST) 1919-1 Tancha Onna-son, Kunigami-gun Okinawa 904-0495 Japan
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32
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Ono LK, Liu S(F, Qi Y. Reducing Detrimental Defects for High-Performance Metal Halide Perovskite Solar Cells. Angew Chem Int Ed Engl 2020; 59:6676-6698. [PMID: 31369195 PMCID: PMC7187320 DOI: 10.1002/anie.201905521] [Citation(s) in RCA: 111] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Indexed: 01/06/2023]
Abstract
In several photovoltaic (PV) technologies, the presence of electronic defects within the semiconductor band gap limit the efficiency, reproducibility, as well as lifetime. Metal halide perovskites (MHPs) have drawn great attention because of their excellent photovoltaic properties that can be achieved even without a very strict film-growth control processing. Much has been done theoretically in describing the different point defects in MHPs. Herein, we discuss the experimental challenges in thoroughly characterizing the defects in MHPs such as, experimental assignment of the type of defects, defects densities, and the energy positions within the band gap induced by these defects. The second topic of this Review is passivation strategies. Based on a literature survey, the different types of defects that are important to consider and need to be minimized are examined. A complete fundamental understanding of defect nature in MHPs is needed to further improve their optoelectronic functionalities.
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Affiliation(s)
- Luis K. Ono
- Energy Materials and Surface Sciences Unit (EMSSU)Okinawa Institute of Science and Technology Graduate University (OIST)1919-1 TanchaOnna-son, Kunigami-gunOkinawa904-0495Japan
| | - Shengzhong (Frank) Liu
- Dalian National Laboratory for Clean Energy, iChEMDalian Institute of Chemical PhysicsChinese Academy of Sciences457 Zhongshan Road116023DalianChina
- Key Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationShaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119China
| | - Yabing Qi
- Energy Materials and Surface Sciences Unit (EMSSU)Okinawa Institute of Science and Technology Graduate University (OIST)1919-1 TanchaOnna-son, Kunigami-gunOkinawa904-0495Japan
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33
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Chu W, Saidi WA, Zhao J, Prezhdo OV. Soft Lattice and Defect Covalency Rationalize Tolerance of β‐CsPbI
3
Perovskite Solar Cells to Native Defects. Angew Chem Int Ed Engl 2020; 59:6435-6441. [DOI: 10.1002/anie.201915702] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Weibin Chu
- Departments of Chemistry, and Physics and Astronomy University of Southern California Los Angeles CA 90089 USA
| | - Wissam A. Saidi
- Department of Mechanical Engineering and Materials Science University of Pittsburgh Pittsburgh PA 15261 USA
| | - Jin Zhao
- ICQD/Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, and Department of Physics University of Science and Technology of China Hefei Anhui 230026 China
- Department of Physics and Astronomy University of Pittsburgh Pittsburgh PA 15260 USA
- Synergetic Innovation Center of Quantum Information & Quantum Physics University of Science and Technology of China Hefei Anhui 230026 China
| | - Oleg V. Prezhdo
- Departments of Chemistry, and Physics and Astronomy University of Southern California Los Angeles CA 90089 USA
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34
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Chu W, Saidi WA, Zhao J, Prezhdo OV. Soft Lattice and Defect Covalency Rationalize Tolerance of β‐CsPbI
3
Perovskite Solar Cells to Native Defects. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915702] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Weibin Chu
- Departments of Chemistry, and Physics and Astronomy University of Southern California Los Angeles CA 90089 USA
| | - Wissam A. Saidi
- Department of Mechanical Engineering and Materials Science University of Pittsburgh Pittsburgh PA 15261 USA
| | - Jin Zhao
- ICQD/Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, and Department of Physics University of Science and Technology of China Hefei Anhui 230026 China
- Department of Physics and Astronomy University of Pittsburgh Pittsburgh PA 15260 USA
- Synergetic Innovation Center of Quantum Information & Quantum Physics University of Science and Technology of China Hefei Anhui 230026 China
| | - Oleg V. Prezhdo
- Departments of Chemistry, and Physics and Astronomy University of Southern California Los Angeles CA 90089 USA
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He W, Shi J, Zhao H, Wang H, Liu X, Shi X. Bandgap engineering of few-layered MoS2 with low concentrations of S vacancies. RSC Adv 2020; 10:15702-15706. [PMID: 35493677 PMCID: PMC9052433 DOI: 10.1039/d0ra01676d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 03/26/2020] [Indexed: 11/24/2022] Open
Abstract
Band-gap engineering of molybdenum disulfide (MoS2) by introducing vacancies is of particular interest owing to the potential optoelectronic applications. In this work, systematic density functional theory (DFT) calculations were carried out for few-layered 3R-MoS2 with different concentrations of S vacancies. All results revealed that the defect energy levels introduced on both sides of the Fermi level formed an intermediate band in the band gap. Both the edges of the intrinsic and intermediate bands of the structures with the same type of vacancies were generally closer to the Fermi level, and the gaps decreased as the number of layers increased from 2 to 4. The preferentially formed S vacancies at the top layer and the transition of defect types from point to line led to similar indirect band gaps for 2- and 4-layered 3R-MoS2 with a low bulk concentration (around 5%) of S vacancies. This is different from most reported results about transition metal dichalcogenide (TMD) materials that the indirect band gap decreases as the number of layers increases and the low concentrations of vacancies show negligible influence on the band gap value. Band-gap engineering of molybdenum disulfide (MoS2) by introducing vacancies is of particular interest owing to the potential optoelectronic applications.![]()
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Affiliation(s)
- Wen He
- School of Physics
- Beijing Institute of Technology
- Beijing 100081
- China
- Laboratory of Theoretical and Computational Nanoscience
| | - Jia Shi
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology
- Chinese Academy of Sciences
- Beijing 100190
| | - Hongkang Zhao
- School of Physics
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Hui Wang
- Laboratory of Theoretical and Computational Nanoscience
- CAS Key Laboratory for Nanosystem and Hierarchy Fabrication
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology
- Chinese Academy of Sciences
| | - Xinfeng Liu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology
- Chinese Academy of Sciences
- Beijing 100190
| | - Xinghua Shi
- Laboratory of Theoretical and Computational Nanoscience
- CAS Key Laboratory for Nanosystem and Hierarchy Fabrication
- CAS Center for Excellence in Nanoscience
- National Center for Nanoscience and Technology
- Chinese Academy of Sciences
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36
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Recent advances in atomic imaging of organic-inorganic hybrid perovskites. NANO MATERIALS SCIENCE 2019. [DOI: 10.1016/j.nanoms.2019.10.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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37
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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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38
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He Y, Yoon YJ, Harn YW, Biesold-McGee GV, Liang S, Lin CH, Tsukruk VV, Thadhani N, Kang Z, Lin Z. Unconventional route to dual-shelled organolead halide perovskite nanocrystals with controlled dimensions, surface chemistry, and stabilities. SCIENCE ADVANCES 2019; 5:eaax4424. [PMID: 31819900 PMCID: PMC6884408 DOI: 10.1126/sciadv.aax4424] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 09/30/2019] [Indexed: 05/19/2023]
Abstract
The past few years have witnessed rapid advances in the synthesis of high-quality perovskite nanocrystals (PNCs). However, despite the impressive developments, the stability of PNCs remains a substantial challenge. The ability to reliably improve stability of PNCs while retaining their individual nanometer size represents a critical step that underpins future advances in optoelectronic applications. Here, we report an unconventional strategy for crafting dual-shelled PNCs (i.e., polymer-ligated perovskite/SiO2 core/shell NCs) with exquisite control over dimensions, surface chemistry, and stabilities. In stark contrast to conventional methods, our strategy relies on capitalizing on judiciously designed star-like copolymers as nanoreactors to render the growth of core/shell NCs with controlled yet tunable perovskite core diameter, SiO2 shell thickness, and surface chemistry. Consequently, the resulting polymer-tethered perovskite/SiO2 core/shell NCs display concurrently a stellar set of substantially improved stabilities (i.e., colloidal stability, chemical composition stability, photostability, water stability), while having appealing solution processability, which are unattainable by conventional methods.
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Affiliation(s)
- Yanjie He
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Young Jun Yoon
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Yeu Wei Harn
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Gill V. Biesold-McGee
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Shuang Liang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Chun Hao Lin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Vladimir V. Tsukruk
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Naresh Thadhani
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Zhitao Kang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
- Electro-Optical Systems Laboratory, Georgia Tech Research Institute, Atlanta, GA 30332, USA
| | - Zhiqun Lin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
- Corresponding author.
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Stecker C, Liu K, Hieulle J, Ohmann R, Liu Z, Ono LK, Wang G, Qi Y. Surface Defect Dynamics in Organic-Inorganic Hybrid Perovskites: From Mechanism to Interfacial Properties. ACS NANO 2019; 13:12127-12136. [PMID: 31566944 DOI: 10.1021/acsnano.9b06585] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Organic-inorganic hybrid perovskites (OHPs) have garnered much attention among the photovoltaic and light-emitting diode research community due to their excellent optoelectronic properties and low-cost fabrication. Defects in perovskites have been proposed to affect device efficiency and stability and to have a potential role in enabling ion migration. In this study, the dynamic behavior and electronic properties of intrinsic defects in CH3NH3PbBr3 (MAPbBr3) were explored at the atomic scale. We use scanning tunneling microscopy to show unambiguously the occurrence of vacancy-assisted transport of individual ions as well as the existence of vacancy defect clusters at the OHP surface. We combine these observations with density functional theory (DFT) calculations to identify the mechanisms for this ion motion and show that ion transport energy barriers, as well as transport mechanisms, at the surface depend on crystal direction. DFT calculations also reveal that vacancy defect clusters can significantly modify the local work function of the perovskite surface, which is then expected to alter interfacial charge transport in a device. Our work provides a microscopic insight into the mechanism of ion migration in OHPs and also delivers the useful information for device improvement from the perspective of interface engineering.
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Affiliation(s)
- Collin Stecker
- Energy Materials and Surface Sciences Unit (EMSSU) , Okinawa Institute of Science and Technology Graduate University (OIST) , 1919-1 Tancha , Onna-son , Okinawa 904-0495 , Japan
| | - Kexi Liu
- Department of Mechanical Engineering and Materials Science , University of Pittsburgh , Pittsburgh , Pennsylvania 15261 , United States
| | - Jeremy Hieulle
- Energy Materials and Surface Sciences Unit (EMSSU) , Okinawa Institute of Science and Technology Graduate University (OIST) , 1919-1 Tancha , Onna-son , Okinawa 904-0495 , Japan
| | - Robin Ohmann
- Energy Materials and Surface Sciences Unit (EMSSU) , Okinawa Institute of Science and Technology Graduate University (OIST) , 1919-1 Tancha , Onna-son , Okinawa 904-0495 , Japan
| | - Zhenyu Liu
- Department of Mechanical Engineering and Materials Science , University of Pittsburgh , Pittsburgh , Pennsylvania 15261 , United States
| | - Luis K Ono
- Energy Materials and Surface Sciences Unit (EMSSU) , Okinawa Institute of Science and Technology Graduate University (OIST) , 1919-1 Tancha , Onna-son , Okinawa 904-0495 , Japan
| | - Guofeng Wang
- Department of Mechanical Engineering and Materials Science , University of Pittsburgh , Pittsburgh , Pennsylvania 15261 , United States
| | - Yabing Qi
- Energy Materials and Surface Sciences Unit (EMSSU) , Okinawa Institute of Science and Technology Graduate University (OIST) , 1919-1 Tancha , Onna-son , Okinawa 904-0495 , Japan
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40
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Tu S, Yin Q, Shang B, Chen M, Wu L. Stable Perovskite Quantum Dots Coated with Superhydrophobic Organosilica Shells for White Light-Emitting Diodes. Chem Asian J 2019; 14:3830-3834. [PMID: 31622024 DOI: 10.1002/asia.201901289] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Indexed: 11/06/2022]
Abstract
Metalammonium lead perovskite (MAPbX3 , MA=CH3 NH3 + ; X=Cl, Br, I) quantum dots (QDs) have attracted tremendous attention due to their outstanding optical properties. However, they usually suffer from poor stability towards water or moisture, which seriously limits their practical applications. Here, we report a simple and effective approach to improve the stability of MAPbBr3 QDs by encapsulating them with superhydrophobic fluorinated organosilica (FSiO2 ) shells. The water-resistant stability of the superhydrophobic MAPbBr3 QDs/FSiO2 is significantly enhanced and they display strong fluorescence even after immersion in water for 12 hours. This method is readily extended to prepare superhydrophobic MAPbBr2.4 Cl0.6 QDs/FSiO2 and MAPbI3 QDs/FSiO2 powders. These superhydrophobic MAPbX3 QDs/FSiO2 can be further used to fabricate white light-emitting diodes (LEDs) with comparable color to pure white emission.
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Affiliation(s)
- Shuhua Tu
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Advanced Coatings Research Center of Ministry of Education of China, Fudan University, Shanghai, 200433, P. R. China
| | - Quanyi Yin
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Advanced Coatings Research Center of Ministry of Education of China, Fudan University, Shanghai, 200433, P. R. China
| | - Bin Shang
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Advanced Coatings Research Center of Ministry of Education of China, Fudan University, Shanghai, 200433, P. R. China
| | - Min Chen
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Advanced Coatings Research Center of Ministry of Education of China, Fudan University, Shanghai, 200433, P. R. China
| | - Limin Wu
- Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Advanced Coatings Research Center of Ministry of Education of China, Fudan University, Shanghai, 200433, P. R. China
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41
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Zhao L, Gao Y, Su M, Shang Q, Liu Z, Li Q, Wei Q, Li M, Fu L, Zhong Y, Shi J, Chen J, Zhao Y, Qiu X, Liu X, Tang N, Xing G, Wang X, Shen B, Zhang Q. Vapor-Phase Incommensurate Heteroepitaxy of Oriented Single-Crystal CsPbBr 3 on GaN: Toward Integrated Optoelectronic Applications. ACS NANO 2019; 13:10085-10094. [PMID: 31436948 DOI: 10.1021/acsnano.9b02885] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Integrating metallic halide perovskites with established modern semiconductor technology is significant for promoting the development of application-level optoelectronic devices. To realize such devices, exploring the growth dynamics and interfacial carrier dynamics of perovskites deposited on the core materials of semiconductor technology is essential. Herein, we report the incommensurate heteroepitaxy of highly oriented single-crystal cesium lead bromide (CsPbBr3) on c-wurtzite GaN/sapphire substrates with atomically smooth surface and uniform rectangular shape by chemical vapor deposition. The CsPbBr3 microplatelet crystal exhibits green-colored lasing under room temperature and has a structural stability comparable with that grown on van der Waals mica substrates. Time-resolved photoluminescence spectroscopy studies show that the type-II CsPbBr3-GaN heterojunction effectively enhances the separation and extraction of free carriers inside CsPbBr3. These findings provide insights into the fabrication and application-level integrated optoelectronic devices of CsPbBr3 perovskites.
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Affiliation(s)
| | - Yan Gao
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Faculty of Physics and Electronic Science , Hubei University , Wuhan 430062 , P. R. China
| | | | | | | | - Qi Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Faculty of Physics and Electronic Science , Hubei University , Wuhan 430062 , P. R. China
| | - Qi Wei
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering , University of Macau , Macao SAR 999078 , P. R. China
| | | | | | - Yangguang Zhong
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology , CAS Center of Excellence for Nanoscience, National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
| | - Jia Shi
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology , CAS Center of Excellence for Nanoscience, National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
| | - Jie Chen
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology , CAS Center of Excellence for Nanoscience, National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
| | - Yue Zhao
- Institute for Quantum Science and Engineering and Department of Physics , Southern University of Science and Technology , Shenzhen 518055 , P. R. China
| | - Xiaohui Qiu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology , CAS Center of Excellence for Nanoscience, National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
| | - Xinfeng Liu
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology , CAS Center of Excellence for Nanoscience, National Center for Nanoscience and Technology , Beijing 100190 , P. R. China
| | | | - Guichuan Xing
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering , University of Macau , Macao SAR 999078 , P. R. China
| | - Xina Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Faculty of Physics and Electronic Science , Hubei University , Wuhan 430062 , P. R. China
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Li H, Wu G, Li W, Zhang Y, Liu Z, Wang D, Liu S(F. Additive Engineering to Grow Micron-Sized Grains for Stable High Efficiency Perovskite Solar Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1901241. [PMID: 31559138 PMCID: PMC6755530 DOI: 10.1002/advs.201901241] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 06/27/2019] [Indexed: 05/17/2023]
Abstract
A high-quality perovskite photoactive layer plays a crucial role in determining the device performance. An additive engineering strategy is introduced by utilizing different concentrations of N,1-diiodoformamidine (DIFA) in the perovskite precursor solution to essentially achieve high-quality monolayer-like perovskite films with enhanced crystallinity, hydrophobic property, smooth surface, and grain size up to nearly 3 µm, leading to significantly reduced grain boundaries, trap densities, and thus diminished hysteresis in the resultant perovskite solar cells (PSCs). The optimized devices with 2% DIFA additive show the best device performance with a significantly enhanced power conversion efficiency (PCE) of 21.22%, as compared to the control devices with the highest PCE of 19.07%. 2% DIFA modified devices show better stability than the control ones. Overall, the introduction of DIFA additive is demonstrated to be a facile approach to obtain high-efficiency, hysteresis-less, and simultaneously stable PSCs.
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Affiliation(s)
- Hua Li
- Key Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationKey Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119China
| | - Guohua Wu
- Key Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationKey Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119China
| | - Wanyi Li
- Key Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationKey Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119China
| | - Yaohong Zhang
- Faculty of Informatics and EngineeringThe University of Electro‐Communications1‐5‐1 ChofugaokaChofuTokyo182‐8585Japan
| | - Zhike Liu
- Key Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationKey Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119China
| | - Dapeng Wang
- Key Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationKey Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119China
| | - Shengzhong (Frank) Liu
- Key Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationKey Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an710119China
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43
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Research on Functional Nanomaterials, Interfaces, and Applications at Soochow University. ACS NANO 2019; 13:2667-2671. [PMID: 30913577 DOI: 10.1021/acsnano.9b01960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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44
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Yang S, Dai J, Yu Z, Shao Y, Zhou Y, Xiao X, Zeng XC, Huang J. Tailoring Passivation Molecular Structures for Extremely Small Open-Circuit Voltage Loss in Perovskite Solar Cells. J Am Chem Soc 2019; 141:5781-5787. [DOI: 10.1021/jacs.8b13091] [Citation(s) in RCA: 412] [Impact Index Per Article: 82.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Shuang Yang
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | | | - Zhenhua Yu
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Yuchuan Shao
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Yu Zhou
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Xun Xiao
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | | | - Jinsong Huang
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, North Carolina 27599, United States
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Zhang L, Lin S, Wu B, Li Q, Li J. Understanding structures and properties of phosphorene/perovskite heterojunction toward perovskite solar cell applications. J Mol Graph Model 2019; 89:96-101. [PMID: 30884451 DOI: 10.1016/j.jmgm.2019.03.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 02/18/2019] [Accepted: 03/08/2019] [Indexed: 11/25/2022]
Abstract
Two-dimensional black phosphorus (phosphorene) has drawn much attention in recent years due to its excellent electronic and optical properties. In this manuscript, we employ ab initio calculations to investigate the structural origin of the phosphorene/perovskite heterostructure. The calculations suggest that the chemical stability and the mechanical stability depend on the surface terminations, and the mechanical stability of the phosphorene/perovskite heterojunction should be further improved. The weak interactions between the P atoms in the phosphorene and the under-coordinated Pb atoms at the perovskite surfaces, as well as the weak interfacial charge transfer characters, are proposed to be mainly responsible for the moderate heterostructure stability. Suggestions to improve the stability of the heterojunction are provided. This study helps the fundamental understanding of the interaction between the phosphorene and the halide perovskite materials, and could provide a foundation for the better understanding of the low-dimensional materials in perovskite-based optoelectronic devices.
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Affiliation(s)
- Lei Zhang
- Jiangsu Key Laboratory for Optoelectronic Detection of Atmosphere and Ocean, Nanjing University of Information Science & Technology, Nanjing, 210044, China; School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China.
| | - Shuai Lin
- Jiangsu Key Laboratory for Optoelectronic Detection of Atmosphere and Ocean, Nanjing University of Information Science & Technology, Nanjing, 210044, China; School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Bo Wu
- Jiangsu Key Laboratory for Optoelectronic Detection of Atmosphere and Ocean, Nanjing University of Information Science & Technology, Nanjing, 210044, China; School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Qingfang Li
- Jiangsu Key Laboratory for Optoelectronic Detection of Atmosphere and Ocean, Nanjing University of Information Science & Technology, Nanjing, 210044, China; School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Jingfa Li
- Jiangsu Key Laboratory for Optoelectronic Detection of Atmosphere and Ocean, Nanjing University of Information Science & Technology, Nanjing, 210044, China; School of Physics and Optoelectronic Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China
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Wu B, Zhang L, Lin S, Li J, Zhou Q. Experimental and first principles investigations on the photoisomerization and electrochemical properties of chlorophosphonazo III. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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47
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Yu Y, Wan S, Hong D, Tian Y. Photo-induced dual passivation via Usanovich acid-base on surface defects of methylammonium lead triiodide perovskite. Phys Chem Chem Phys 2018; 20:28068-28074. [PMID: 30383047 DOI: 10.1039/c8cp06112b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Post-fabrication defect passivation of organometal halide perovskites has become an efficient way to improve their photophysical properties, but the underlying mechanisms are still in debate. In this work, we used p-benzoquinone (p-BQ) to generate surface defects on methylammonium lead triiodide perovskite (MAPbI3), and found that a Usanovich acid-base (O2, acetone or acetonitrile) treatment can effectively passivate those defects and lead to photoluminescence (PL) enhancement. The passivation effect arose from partial neutralization of defect charges via electron transfer between passivation reagents and relevant defects. O2 accepted photo-generated electrons, formed negatively charged oxygen species and attached to the I vacancy site to reduce its PL quenching efficiency by neutralising the defects positive charge. Likewise, acetone accepted photo-generated holes, formed positively charged species and partially neutralised the defects negative charge. The reduced trapping ability of defects caused PL enhancement. In addition, the observed photo-catalysed oxidation of acetone by O2 on the crystal surface supported the single electron transfer mechanism, and showed the potential of MAPbI3 as a photo-catalyst.
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Affiliation(s)
- Yue Yu
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering and Jiangsu Key Laboratory of Vehicle Emissions Control, Nanjing University, Nanjing, China.
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Wei D, Ma F, Wang R, Dou S, Cui P, Huang H, Ji J, Jia E, Jia X, Sajid S, Elseman AM, Chu L, Li Y, Jiang B, Qiao J, Yuan Y, Li M. Ion-Migration Inhibition by the Cation-π Interaction in Perovskite Materials for Efficient and Stable Perovskite Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707583. [PMID: 29938843 DOI: 10.1002/adma.201707583] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 04/20/2018] [Indexed: 05/18/2023]
Abstract
Migration of ions can lead to photoinduced phase separation, degradation, and current-voltage hysteresis in perovskite solar cells (PSCs), and has become a serious drawback for the organic-inorganic hybrid perovskite materials (OIPs). Here, the inhibition of ion migration is realized by the supramolecular cation-π interaction between aromatic rubrene and organic cations in OIPs. The energy of the cation-π interaction between rubrene and perovskite is found to be as strong as 1.5 eV, which is enough to immobilize the organic cations in OIPs; this will thus will lead to the obvious reduction of defects in perovskite films and outstanding stability in devices. By employing the cation-immobilized OIPs to fabricate perovskite solar cells (PSCs), a champion efficiency of 20.86% and certified efficiency of 20.80% with negligible hysteresis are acquired. In addition, the long-term stability of cation-immobilized PSCs is improved definitely (98% of the initial efficiency after 720 h operation), which is assigned to the inhibition of ionic diffusions in cation-immobilized OIPs. This cation-π interaction between cations and the supramolecular π system enhances the stability and the performance of PSCs efficiently and would be a potential universal approach to get the more stable perovskite devices.
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Affiliation(s)
- Dong Wei
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing, 102206, China
| | - Fusheng Ma
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Rui Wang
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Shangyi Dou
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing, 102206, China
| | - Peng Cui
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing, 102206, China
| | - Hao Huang
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing, 102206, China
| | - Jun Ji
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing, 102206, China
| | - Endong Jia
- Key Laboratory of Solar Thermal Energy and Photovoltaic System, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiaojie Jia
- Key Laboratory of Solar Thermal Energy and Photovoltaic System, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Sajid Sajid
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing, 102206, China
| | - Ahmed Mourtada Elseman
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing, 102206, China
- Electronic and Magnetic Materials Department, Central Metallurgical Research and Development Institute (CMRDI), PO Box 87 Helwan, 1, Elfelezat Street, El-Tebbin, 11421, Cairo, Egypt
| | - Lihua Chu
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing, 102206, China
| | - Yingfeng Li
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing, 102206, China
| | - Bing Jiang
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing, 102206, China
| | - Juan Qiao
- Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yongbo Yuan
- Hunan Key Laboratory of Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Hunan, 410083, P. R. China
| | - Meicheng Li
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, School of Renewable Energy, North China Electric Power University, Beijing, 102206, China
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Emerging Characterizing Techniques in the Fine Structure Observation of Metal Halide Perovskite Crystal. CRYSTALS 2018. [DOI: 10.3390/cryst8060232] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zeng C, Wang B, Wang L, Li Y, Nie Y, Xiao W. Chemisorption of a hydrogen adatom on metal doped α -Zr (0 0 0 1) surfaces in a vacuum and an implicit solvation environment. NUCLEAR MATERIALS AND ENERGY 2017. [DOI: 10.1016/j.nme.2017.09.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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