151
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Zhang H, Qin M, Chen Z, Yu W, Ren Z, Liu K, Huang J, Zhang Y, Liang Q, Chandran HT, Fong PWK, Zheng Z, Lu X, Li G. Bottom-Up Quasi-Epitaxial Growth of Hybrid Perovskite from Solution Process-Achieving High-Efficiency Solar Cells via Template-Guided Crystallization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100009. [PMID: 33893688 DOI: 10.1002/adma.202100009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 03/04/2021] [Indexed: 06/12/2023]
Abstract
Epitaxial growth gives the highest-quality crystalline semiconductor thin films for optoelectronic devices. Here, a universal solution-processed bottom-up quasi-epitaxial growth of highly oriented α-formamidinium lead triiodide (α-FAPbI3 ) perovskite film via a two-step method is reported, in which the crystal orientation of α-FAPbI3 film is precisely controlled through the synergetic effect of methylammonium chloride and the large-organic cation butylammonium bromide. In situ GIWAXS visualizes the BA-related intermediate phase formation at the bottom of film, which serves as a guiding template for the bottom-up quasi-epitaxial growth in the subsequent annealing process. The template-guided epitaxially grown BAFAMA perovskite film exhibits increased crystallinity, preferred crystallographic orientation, and reduced defects. Moreover, the BAFAMA perovskite solar cells demonstrate decent stability, maintaining 95% of their initial power conversion efficiency after 2600 h ambient storage, and 4-time operation condition lifetime enhancement.
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Affiliation(s)
- Hengkai Zhang
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen, 518057, China
| | - Minchao Qin
- Department of Physics, The Chinese University of Hong Kong, New Territories, Hong Kong, China
| | - Zhiliang Chen
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Wei Yu
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian, Liaoning, 116023, China
| | - Zhiwei Ren
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen, 518057, China
| | - Kuan Liu
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen, 518057, China
| | - Jiaming Huang
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen, 518057, China
| | - Yaokang Zhang
- Laboratory for Advanced Interfacial Materials and Devices, Research Centre for Smart Wearable Technology, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Qiong Liang
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen, 518057, China
| | - Hrisheekesh Thachoth Chandran
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen, 518057, China
| | - Patrick W K Fong
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Zijian Zheng
- Laboratory for Advanced Interfacial Materials and Devices, Research Centre for Smart Wearable Technology, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Xinhui Lu
- Department of Physics, The Chinese University of Hong Kong, New Territories, Hong Kong, China
| | - Gang Li
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen, 518057, China
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152
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Lee H, Woo JY, Park DY, Jo I, Park J, Lee Y, Koo Y, Choi J, Kim H, Kim YH, Jeong MS, Jeong S, Park KD. Tip-Induced Strain Engineering of a Single Metal Halide Perovskite Quantum Dot. ACS NANO 2021; 15:9057-9064. [PMID: 33988975 DOI: 10.1021/acsnano.1c02182] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Strain engineering of perovskite quantum dots (pQDs) enables widely tunable photonic device applications. However, manipulation at the single-emitter level has never been attempted. Here, we present a tip-induced control approach combined with tip-enhanced photoluminescence (TEPL) spectroscopy to engineer strain, bandgap, and the emission quantum yield of a single pQD. Single CsPbBrxI3-x pQDs are clearly resolved through hyperspectral TEPL imaging with ∼10 nm spatial resolution. The plasmonic tip then directly applies pressure to a single pQD to facilitate a bandgap shift up to ∼62 meV with Purcell-enhanced PL increase as high as ∼105 for the strain-induced pQD. Furthermore, by systematically modulating the tip-induced compressive strain of a single pQD, we achieve dynamical bandgap engineering in a reversible manner. In addition, we facilitate the quantum dot coupling for a pQD ensemble with ∼0.8 GPa tip pressure at the nanoscale estimated theoretically. Our approach presents a strategy to tune the nano-opto-electro-mechanical properties of pQDs at the single-crystal level.
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Affiliation(s)
- Hyeongwoo Lee
- Department of Physics, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Ju Young Woo
- Manufacturing Process Platform R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan 15588, Republic of Korea
| | - Dae Young Park
- Department of Physics, Hanyang University, Seoul 04763, Republic of Korea
| | - Inho Jo
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jusun Park
- Department of Energy Science, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Yeunhee Lee
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Yeonjeong Koo
- Department of Physics, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jinseong Choi
- Department of Physics, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Hyojung Kim
- Department of Energy Science, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Yong-Hyun Kim
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Graduate School of Nanoscience and Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Mun Seok Jeong
- Department of Physics, Hanyang University, Seoul 04763, Republic of Korea
- Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Sohee Jeong
- Department of Energy Science, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Artificial Atom and Quantum Materials Center, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Kyoung-Duck Park
- Department of Physics, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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153
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Li C, Hu J, Wang S, Ren J, Chen B, Pan T, Niu X, Hao F. Lattice Strain Relaxation and Grain Homogenization for Efficient Inverted MAPbI 3 Perovskite Solar Cells. J Phys Chem Lett 2021; 12:4569-4575. [PMID: 33970641 DOI: 10.1021/acs.jpclett.1c01074] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The lattice strain of a perovskite film is vital to the controllable growth and charge transport in perovskite solar cells (PSCs). In this work, a lead chloride (PbCl2) assisted crystallization (LCAC) protocol is introduced for releasing the strain across the interface of a NiOx/perovskite, which induces a preferred (h00) crystal plane growth and grain homogenization. PSCs with LCAC show a facilitated charge extraction and suppressed nonradiative recombination. Thanks to the controlled film growth and strain-released interface, the inverted MAPbI3 (MA = methylammonium) PSC devices with LCAC deliver a power conversion efficiency (PCE) over 20% with a short-circuit current density (Jsc) of 23.60 mA cm-2, which is obviously higher than that of the control device with a PCE of 18.36% and a Jsc of 21.74 mA cm-2. Meanwhile, the LCAC devices maintain 80% of their initial efficiency after being exposed to an ambient atmosphere with a relative humidity of 40% over 1000 h in the dark.
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Affiliation(s)
- Chengbo Li
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Jie Hu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Shurong Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Jing Ren
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Bin Chen
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Taisong Pan
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Xiaobin Niu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Feng Hao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China
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154
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Tang G, Ghosez P, Hong J. Band-Edge Orbital Engineering of Perovskite Semiconductors for Optoelectronic Applications. J Phys Chem Lett 2021; 12:4227-4239. [PMID: 33900763 DOI: 10.1021/acs.jpclett.0c03816] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Lead (Pb) halide perovskites have achieved great success in recent years because of their excellent optoelectronic properties, which is largely attributed to the lone-pair s orbital-derived antibonding states at the valence band edge. Guided by the key band-edge orbital character, a series of ns2-containing (i.e., Sn2+, Sb3+, and Bi3+) Pb-free perovskite alternatives have been explored as potential photovoltaic candidates. On the other hand, based on the band-edge orbital components (i.e., M2+ s and p/X- p orbitals), a series of strategies have been proposed to optimize their optoelectronic properties by modifying the atomic orbitals and orbital interactions. Therefore, understanding the band-edge electronic features from the recently reported halide perovskites is essential for future material design and device optimization. This Perspective first attempts to establish the band-edge orbital-property relationship using a chemically intuitive approach and then rationalizes their superior properties and explains the trends in electronic properties. We hope that this Perspective will provide atomic-level guidance and insights toward the rational design of perovskite semiconductors with outstanding optoelectronic properties.
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Affiliation(s)
- Gang Tang
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
- Theoretical Materials Physics, Q-MAT, CESAM, University of Liège, Liège B-4000, Belgium
| | - Philippe Ghosez
- Theoretical Materials Physics, Q-MAT, CESAM, University of Liège, Liège B-4000, Belgium
| | - Jiawang Hong
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
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155
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Wang Y, Fan Y, Zhang X, Tang H, Song Q, Han J, Xiao S. Highly Controllable Etchless Perovskite Microlasers Based on Bound States in the Continuum. ACS NANO 2021; 15:7386-7391. [PMID: 33729762 DOI: 10.1021/acsnano.1c00673] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Lead halide perovskites have been promising materials for lasing applications. Despite that a series of perovskite microlasers have been reported, their lasing modes are confined by either the as-grown morphology or the etched boundary. The first one is quite random and incompatible with integration, whereas the latter one strongly spoils the laser performances. Herein, we propose and experimentally demonstrate a robust and generic mechanism to realize well-controlled perovskite microlasers without the etching process. By patterning a one-dimensional polymer grating onto a perovskite film, we show that the symmetry-protected bound states in the continuum (BICs) can be formed in it. The intriguing properties of BICs including a widely spread mode profile and high Q factor, associated with the exceptional gain of perovskite, produce single-mode microlasers with high repeatability, controllability, directionality, and a polarization vortex. This mechanism can also be extended to two-dimensional nanostructures, enabling BIC lasers with different topological charges.
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Affiliation(s)
- Yuhan Wang
- Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
| | - Yubin Fan
- Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
| | - Xudong Zhang
- Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
| | - Haijun Tang
- Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
| | - Qinghai Song
- Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, Shanxi, People's Republic of China
| | - Jiecai Han
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, People's Republic of China
| | - Shumin Xiao
- Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
- National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, People's Republic of China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, Shanxi, People's Republic of China
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156
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Schötz K, Panzer F. Using In Situ Optical Spectroscopy to Elucidate Film Formation of Metal Halide Perovskites. J Phys Chem A 2021; 125:2209-2225. [PMID: 33596069 DOI: 10.1021/acs.jpca.0c10765] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The research interest in halide perovskites has gained momentum enormously over the last recent years, also due to the demonstration of high-efficient perovskite-based optoelectronic devices. A prerequisite for such highly efficient devices is to realize high-quality perovskite layers, which requires a deep understanding about the perovskite formation and good process control. In that context, in situ optical spectroscopy during the processing of halide perovskites has become increasingly popular. Even though it is a relatively easily accessible yet powerful tool for studying perovskite formation, there exist some technical and analytical aspects that need to be considered to unfold its full potential. In this Perspective, we give an overview of the latest developments in the field of in situ optical spectroscopy to control and better understand the film processing of halide perovskites. We highlight possibilities and pitfalls regarding the analysis of measured optical data, discuss the development of technical concepts, and address future prospects of optical in situ spectroscopy.
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Affiliation(s)
- Konstantin Schötz
- Soft Matter Optoelectronics, University of Bayreuth, Bayreuth 95440, Germany
| | - Fabian Panzer
- Soft Matter Optoelectronics, University of Bayreuth, Bayreuth 95440, Germany
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157
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Zhang Z, Suchan K, Li J, Hetherington C, Kiligaridis A, Unger E, Scheblykin IG, Wallentin J. Vertically Aligned CsPbBr 3 Nanowire Arrays with Template-Induced Crystal Phase Transition and Stability. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2021; 125:4860-4868. [PMID: 33763163 PMCID: PMC7976601 DOI: 10.1021/acs.jpcc.0c11217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/29/2021] [Indexed: 05/06/2023]
Abstract
Metal halide perovskites show great promise for a wide range of optoelectronic applications but are plagued by instability when exposed to air and light. This work presents low-temperature solution growth of vertically aligned CsPbBr3 nanowire arrays in AAO (anodized aluminum oxide) templates with excellent stability, with samples exposed to air for 4 months still exhibiting comparable photoluminescence and UV stability to fresh samples. The single-crystal nanowire length is adjusted from ∼100 nm to 5 μm by adjusting the precursor solution amount and concentration, and we observe length-to-diameter ratios as high as 100. Structural characterization results indicate that large-diameter CsPbBr3 nanowires have an orthorhombic structure, while the 10 nm- and 20 nm-diameter nanowires adopt a cubic structure. Photoluminescence shows a gradual blue-shift in emission with decreasing nanowire diameter and marginal changes under varying illumination power intensity. The CsPbBr3-nanowires/AAO composite exhibits excellent resistance to X-ray radiation and long-term air storage, which makes it promising for future optoelectronic applications such as X-ray scintillators. These results show how physical confinement in AAO can be used to realize CsPbBr3 nanowire arrays and control their morphology and crystal structure.
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Affiliation(s)
- Zhaojun Zhang
- Synchrotron
Radiation Research and NanoLund, Department of Physics, Lund University, Box 124, Lund 22100, Sweden
| | - Klara Suchan
- Chemical
Physics and NanoLund, Department of Chemistry, Lund University, Box 124, Lund 22100, Sweden
| | - Jun Li
- Chemical
Physics and NanoLund, Department of Chemistry, Lund University, Box 124, Lund 22100, Sweden
| | - Crispin Hetherington
- Centre
for Analysis and Synthesis and NanoLund, Department of Chemistry, Lund University, Box 124, Lund 22100, Sweden
| | - Alexander Kiligaridis
- Chemical
Physics and NanoLund, Department of Chemistry, Lund University, Box 124, Lund 22100, Sweden
| | - Eva Unger
- Chemical
Physics and NanoLund, Department of Chemistry, Lund University, Box 124, Lund 22100, Sweden
| | - Ivan G. Scheblykin
- Chemical
Physics and NanoLund, Department of Chemistry, Lund University, Box 124, Lund 22100, Sweden
| | - Jesper Wallentin
- Synchrotron
Radiation Research and NanoLund, Department of Physics, Lund University, Box 124, Lund 22100, Sweden
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158
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Chen Y, Zeng H, Ma P, Chen G, Jian J, Sun X, Li X, Wang H, Yin W, Jia Q, Zou G. Overcoming the Anisotropic Growth Limitations of Free‐Standing Single‐Crystal Halide Perovskite Films. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202011853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuan Chen
- College of Energy Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215123 China
- MIIT Key Laboratory of Advanced Display Materials and Devices College of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 China
| | - Haibo Zeng
- MIIT Key Laboratory of Advanced Display Materials and Devices College of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 China
| | - Peipei Ma
- College of Energy Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215123 China
| | - Gaoyuan Chen
- College of Energy Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215123 China
| | - Jie Jian
- School of Material Engineering Purdue University West Lafayette IN 47907 USA
| | - Xing Sun
- School of Material Engineering Purdue University West Lafayette IN 47907 USA
| | - Xiaoming Li
- MIIT Key Laboratory of Advanced Display Materials and Devices College of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 China
| | - Haiyan Wang
- School of Material Engineering Purdue University West Lafayette IN 47907 USA
| | - Wanjian Yin
- College of Energy Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215123 China
| | - Quanxi Jia
- Department of Materials Design and Innovation, University of Buffalo The State University of New York Buffalo NY 14260 USA
| | - Guifu Zou
- College of Energy Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215123 China
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159
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Peng D, Liu X, Pan C. Epitaxial lift-off for controllable single-crystalline perovskites. Sci Bull (Beijing) 2021; 66:6-8. [PMID: 36654314 DOI: 10.1016/j.scib.2020.09.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Dengfeng Peng
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Xianhu Liu
- Key Laboratory of Materials Processing and Mold (Ministry of Education), Zhengzhou University, Zhengzhou 450002, China
| | - Caofeng Pan
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China; School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
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160
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Pan Y, Wang X, Zhao J, Xu Y, Li Y, Li Q, Zhang X, Zhao Z, Zhu Z, Jing C, Jun W, Emeka Elemike E, Bae BS, Lei W. Photodiodes based on a MAPbBr 3/Bi 3+-doped MAPbCl 3 single crystals heterojunction for the X-ray detection. CrystEngComm 2021. [DOI: 10.1039/d1ce00406a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The epitaxially fabricated MAPbBr3/Bi3+-doped MAPbCl3 PSCs pN heterojunction shows advanced X-ray detection performance with decreased dark current density and faster response time under relatively high external reverse voltage.
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161
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Zhu W, Shen J, Li M, Yang K, Bu W, Sun YY, Shi J, Lian J. Kinetically Controlled Growth of Sub-Millimeter 2D Cs 2 SnI 6 Nanosheets at the Liquid-Liquid Interface. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006279. [PMID: 33373112 DOI: 10.1002/smll.202006279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 11/27/2020] [Indexed: 06/12/2023]
Abstract
Cs2 SnI6 perovskite displays excellent air stability and a high absorption coefficient, promising for photovoltaic and optoelectronic applications. However, Cs2 SnI6 -based device performance is still low as a result of lacking optimized synthesis approaches to obtain high quality Cs2 SnI6 crystals. Here, a new simple method to synthesize single crystalline Cs2 SnI6 perovskite at a liquid-liquid interface is reported. By controlling solvent conditions and Cs2 SnI6 supersaturation at the liquid-liquid interface, Cs2 SnI6 crystals can be obtained from 3D to 2D growth with controlled geometries such as octahedron, pyramid, hexagon, and triangular nanosheets. The formation mechanisms and kinetics of complex shapes/geometries of high quality Cs2 SnI6 crystals are investigated. Freestanding single crystalline 2D nanosheets can be fabricated as thin as 25 nm, and the lateral size can be controlled up to sub-millimeter regime. Electronic property of the high quality Cs2 SnI6 2D nanosheets is also characterized, featuring a n-type conduction with a high carrier mobility of 35 cm2 V-1 s-1 . The interfacial reaction-controlled synthesis of high-quality crystals and mechanistic understanding of the crystal growth allow to realize rational design of materials, and the manipulation of crystal growth can be beneficial to achieve desired properties for potential functional applications.
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Affiliation(s)
- Weiguang Zhu
- Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Junhua Shen
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Mingxin Li
- Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Kun Yang
- Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Wei Bu
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL, 60637, USA
| | - Yi-Yang Sun
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201899, China
| | - Jian Shi
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Jie Lian
- Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
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162
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Dennis E, Kundu S, Thrithamarassery Gangadharan D, Huang J, Burlakov VM, Richtsmeier D, Bazalova-Carter M, Leitch DC, Saidaminov MI. High length-to-width aspect ratio lead bromide microwires via perovskite-induced local concentration gradient for X-ray detection. CrystEngComm 2021. [DOI: 10.1039/d1ce00015b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Well-oriented PbBr2 microwires with a length-to-width ratio of up to 5000 were grown using a concentration gradient in co-crystallization with perovskite. Planar-integrated microwires showed a response to X-ray photons.
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Affiliation(s)
- Emma Dennis
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
| | - Soumya Kundu
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
| | | | - Jingjun Huang
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
| | | | - Devon Richtsmeier
- Department of Physics and Astronomy
- University of Victoria
- Victoria
- Canada
| | | | | | - Makhsud I. Saidaminov
- Department of Chemistry
- University of Victoria
- Victoria
- Canada
- Department of Electrical & Computer Engineering
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163
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Navik R, Ding X, Huijun T, Zhao Y. Facile Synthesis of Highly Oxidation Stable Nanosilver-Coated Copper Nanowires for Transparent Flexible Electrodes. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04251] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rahul Navik
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China
| | - Xiao Ding
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China
| | - Tan Huijun
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China
| | - Yaping Zhao
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, PR China
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164
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Strain-activated light-induced halide segregation in mixed-halide perovskite solids. Nat Commun 2020; 11:6328. [PMID: 33303755 PMCID: PMC7730187 DOI: 10.1038/s41467-020-20066-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 09/09/2020] [Indexed: 11/15/2022] Open
Abstract
Light-induced halide segregation limits the bandgap tunability of mixed-halide perovskites for tandem photovoltaics. Here we report that light-induced halide segregation is strain-activated in MAPb(I1−xBrx)3 with Br concentration below approximately 50%, while it is intrinsic for Br concentration over approximately 50%. Free-standing single crystals of CH3NH3Pb(I0.65Br0.35)3 (35%Br) do not show halide segregation until uniaxial pressure is applied. Besides, 35%Br single crystals grown on lattice-mismatched substrates (e.g. single-crystal CaF2) show inhomogeneous segregation due to heterogenous strain distribution. Through scanning probe microscopy, the above findings are successfully translated to polycrystalline thin films. For 35%Br thin films, halide segregation selectively occurs at grain boundaries due to localized strain at the boundaries; yet for 65%Br films, halide segregation occurs in the whole layer. We close by demonstrating that only the strain-activated halide segregation (35%Br/45%Br thin films) could be suppressed if the strain is properly released via additives (e.g. KI) or ideal substrates (e.g. SiO2). Mixed-halide perovskites are of interest for photovoltaic devices, but light-induced halide segregation obstructs bandgap tuning and is not fully understood. Here the authors study the effects of strain and iodide/bromide ratio on light-induced halide segregation in mixed-halide perovskites.
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165
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Chen Y, Zeng H, Ma P, Chen G, Jian J, Sun X, Li X, Wang H, Yin W, Jia Q, Zou G. Overcoming the Anisotropic Growth Limitations of Free‐Standing Single‐Crystal Halide Perovskite Films. Angew Chem Int Ed Engl 2020; 60:2629-2636. [PMID: 33047467 DOI: 10.1002/anie.202011853] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/02/2020] [Indexed: 01/27/2023]
Affiliation(s)
- Yuan Chen
- College of Energy Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215123 China
- MIIT Key Laboratory of Advanced Display Materials and Devices College of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 China
| | - Haibo Zeng
- MIIT Key Laboratory of Advanced Display Materials and Devices College of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 China
| | - Peipei Ma
- College of Energy Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215123 China
| | - Gaoyuan Chen
- College of Energy Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215123 China
| | - Jie Jian
- School of Material Engineering Purdue University West Lafayette IN 47907 USA
| | - Xing Sun
- School of Material Engineering Purdue University West Lafayette IN 47907 USA
| | - Xiaoming Li
- MIIT Key Laboratory of Advanced Display Materials and Devices College of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 China
| | - Haiyan Wang
- School of Material Engineering Purdue University West Lafayette IN 47907 USA
| | - Wanjian Yin
- College of Energy Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215123 China
| | - Quanxi Jia
- Department of Materials Design and Innovation, University of Buffalo The State University of New York Buffalo NY 14260 USA
| | - Guifu Zou
- College of Energy Soochow Institute for Energy and Materials Innovations, and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215123 China
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166
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Lee JW, Tan S, Han TH, Wang R, Zhang L, Park C, Yoon M, Choi C, Xu M, Liao ME, Lee SJ, Nuryyeva S, Zhu C, Huynh K, Goorsky MS, Huang Y, Pan X, Yang Y. Solid-phase hetero epitaxial growth of α-phase formamidinium perovskite. Nat Commun 2020; 11:5514. [PMID: 33139740 PMCID: PMC7608657 DOI: 10.1038/s41467-020-19237-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/01/2020] [Indexed: 12/04/2022] Open
Abstract
Conventional epitaxy of semiconductor films requires a compatible single crystalline substrate and precisely controlled growth conditions, which limit the price competitiveness and versatility of the process. We demonstrate substrate-tolerant nano-heteroepitaxy (NHE) of high-quality formamidinium-lead-tri-iodide (FAPbI3) perovskite films. The layered perovskite templates the solid-state phase conversion of FAPbI3 from its hexagonal non-perovskite phase to the cubic perovskite polymorph, where the growth kinetics are controlled by a synergistic effect between strain and entropy. The slow heteroepitaxial crystal growth enlarged the perovskite crystals by 10-fold with a reduced defect density and strong preferred orientation. This NHE is readily applicable to various substrates used for devices. The proof-of-concept solar cell and light-emitting diode devices based on the NHE-FAPbI3 showed efficiencies and stabilities superior to those of devices fabricated without NHE. Though literature reports metal halide perovskite epitaxial growth on various substrates, controlling film growth for device applications remains a challenge. Here, the authors report kinetic-controlled growth of halide perovskite thin films on various substrates via layered perovskite templates.
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Affiliation(s)
- Jin-Wook Lee
- Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA. .,Department of Nanoengineering, SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Shaun Tan
- Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Tae-Hee Han
- Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA.,Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Rui Wang
- Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Lizhi Zhang
- Department of Physics and Astronomy, University of Tennessee, Knoxville, TN, 37996, USA
| | - Changwon Park
- Department of Physics and Astronomy, University of Tennessee, Knoxville, TN, 37996, USA
| | - Mina Yoon
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
| | - Chungseok Choi
- Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Mingjie Xu
- Department of Materials Science and Engineering, Irvine Materials Research Institute, University of California, Irvine, CA, 92697, USA
| | - Michael E Liao
- Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Sung-Joon Lee
- Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Selbi Nuryyeva
- Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Chenhui Zhu
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94704, USA
| | - Kenny Huynh
- Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Mark S Goorsky
- Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Yu Huang
- Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA
| | - Xiaoqing Pan
- Department of Materials Science and Engineering, Irvine Materials Research Institute, University of California, Irvine, CA, 92697, USA
| | - Yang Yang
- Department of Materials Science and Engineering, California NanoSystems Institute, University of California, Los Angeles, CA, 90095, USA.
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167
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Zhao J, Chen B, Wang F. Shedding Light on the Role of Misfit Strain in Controlling Core-Shell Nanocrystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2004142. [PMID: 33051904 DOI: 10.1002/adma.202004142] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/21/2020] [Indexed: 05/17/2023]
Abstract
Heteroepitaxial modification of nanomaterials has become a powerful means to create novel functionalities for various applications. One of the most elementary factors in heteroepitaxial nanostructures is the misfit strain arising from mismatched lattices of the constituent parts. Misfit strain not only dictates epitaxy kinetics for diversifying nanocrystal morphologies but also provides rational control over materials properties. In recent years, advances in chemical synthesis along with the rapid development of electron microscopy and X-ray diffraction techniques have enabled a substantial understanding of strain-related processes, which offers theoretical foundation and experimental guidance for researchers to refine heteroepitaxial nanostructures and their properties. Herein, recent investigations on heterogeneous core-shell nanocrystals containing misfit strains are summarized, with a focus on the mechanistic understanding of strain and strain-induced effects such as tuning the epitaxial habit, modulating the optical emission, and enhancing the catalytic activity and magnetic coercivity.
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Affiliation(s)
- Jianxiong Zhao
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Bing Chen
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Feng Wang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
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169
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Reversible multicolor chromism in layered formamidinium metal halide perovskites. Nat Commun 2020; 11:5234. [PMID: 33067460 PMCID: PMC7568568 DOI: 10.1038/s41467-020-19009-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 09/23/2020] [Indexed: 11/09/2022] Open
Abstract
Metal halide perovskites feature crystalline-like electronic band structures and liquid-like physical properties. The crystal–liquid duality enables optoelectronic devices with unprecedented performance and a unique opportunity to chemically manipulate the structure with low energy input. In this work, we leverage the low formation energy of metal halide perovskites to demonstrate multicolor reversible chromism. We synthesized layered Ruddlesden-Popper FAn+1PbnX3n+1 (FA = formamidinium, X = I, Br; n = number of layers = 1, 2, 3 … ∞) and reversibly tune the dimensionality (n) by modulating the strength and number of H-bonds in the system. H-bonding was controlled by exposure to solvent vapor (solvatochromism) or temperature change (thermochromism), which shuttles FAX salt pairs between the FAn+1PbnX3n+1 domains and adjacent FAX “reservoir” domains. Unlike traditional chromic materials that only offer a single-color transition, FAn+1PbnX3n+1 films reversibly switch between multiple colors including yellow, orange, red, brown, and white/colorless. Each colored phase exhibits distinct optoelectronic properties characteristic of 2D superlattice materials with tunable quantum well thickness. Metal halide perovskites feature crystalline-like electronic band structures and liquid-like physical properties that allow chemical manipulation of the structure with low energy input. Here, the authors leverage the low formation energy of 2D metal halide perovskites to demonstrate films that reversibly switch between multiple colors using tunable quantum well thickness.
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170
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Pan B, Wu M, Yang G, Zhao D, Yu J. Low dark current and high-performance hybrid perovskite photodetectors with a PBDB-T:IHIC ultrathin passivation layer. OPTICS LETTERS 2020; 45:5860-5863. [PMID: 33057303 DOI: 10.1364/ol.402834] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
In this Letter, the reduction of undesired high dark current caused by defect states in solution-processed perovskite for photodetectors is realized with the introduction of an ultrathin buffer layer of PBDB-T:IHIC bulk heterojunction (BHJ). By controlling the concentration of BHJ precisely during a solution process, a low dark current density (Jd) of 1.01×10-4mA/cm2 and a high specific detectivity (D∗) of 2.61×1012Jones were achieved. It was found that low Jd is attributed to the passivation effect of BHJ on defect states, where BHJ acts as a Lewis base and interacts with unbonded Pb2+ in perovskite. This Letter demonstrates that the application of ultrathin organic BHJ has significant potential for the manufacturing of high-performance optoelectronic devices.
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171
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Kim G, Min H, Lee KS, Lee DY, Yoon SM, Seok SI. Impact of strain relaxation on performance of α-formamidinium lead iodide perovskite solar cells. Science 2020; 370:108-112. [DOI: 10.1126/science.abc4417] [Citation(s) in RCA: 554] [Impact Index Per Article: 138.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 08/10/2020] [Indexed: 12/16/2022]
Abstract
High-efficiency lead halide perovskite solar cells (PSCs) have been fabricated with α-phase formamidinium lead iodide (FAPbI3) stabilized with multiple cations. The alloyed cations greatly affect the bandgap, carrier dynamics, and stability, as well as lattice strain that creates unwanted carrier trap sites. We substituted cesium (Cs) and methylenediammonium (MDA) cations in FA sites of FAPbI3 and found that 0.03 mol fraction of both MDA and Cs cations lowered lattice strain, which increased carrier lifetime and reduced Urbach energy and defect concentration. The best-performing PSC exhibited power conversion efficiency >25% under 100 milliwatt per square centimeter AM 1.5G illumination (24.4% certified efficiency). Unencapsulated devices maintained >80% of their initial efficiency after 1300 hours in the dark at 85°C.
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Affiliation(s)
- Gwisu Kim
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Korea
| | - Hanul Min
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Korea
| | - Kyoung Su Lee
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Korea
| | - Do Yoon Lee
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Korea
| | - So Me Yoon
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Korea
| | - Sang Il Seok
- Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Korea
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172
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Lu H, Liu Y, Ahlawat P, Mishra A, Tress WR, Eickemeyer FT, Yang Y, Fu F, Wang Z, Avalos CE, Carlsen BI, Agarwalla A, Zhang X, Li X, Zhan Y, Zakeeruddin SM, Emsley L, Rothlisberger U, Zheng L, Hagfeldt A, Grätzel M. Vapor-assisted deposition of highly efficient, stable black-phase FAPbI3 perovskite solar cells. Science 2020; 370:370/6512/eabb8985. [DOI: 10.1126/science.abb8985] [Citation(s) in RCA: 307] [Impact Index Per Article: 76.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 08/05/2020] [Indexed: 12/13/2022]
Abstract
Mixtures of cations or halides with FAPbI3 (where FA is formamidinium) lead to high efficiency in perovskite solar cells (PSCs) but also to blue-shifted absorption and long-term stability issues caused by loss of volatile methylammonium (MA) and phase segregation. We report a deposition method using MA thiocyanate (MASCN) or FASCN vapor treatment to convert yellow δ-FAPbI3 perovskite films to the desired pure α-phase. NMR quantifies MA incorporation into the framework. Molecular dynamics simulations show that SCN– anions promote the formation and stabilization of α-FAPbI3 below the thermodynamic phase-transition temperature. We used these low-defect-density α-FAPbI3 films to make PSCs with >23% power-conversion efficiency and long-term operational and thermal stability, as well as a low (330 millivolts) open-circuit voltage loss and a low (0.75 volt) turn-on voltage of electroluminescence.
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Affiliation(s)
- Haizhou Lu
- Laboratory of Photomolecular Science, Institute of Chemical Sciences Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, EPFL, CH-1015 Lausanne, Switzerland
| | - Yuhang Liu
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, EPFL, CH-1015 Lausanne, Switzerland
| | - Paramvir Ahlawat
- Laboratory of Computational Chemistry and Biochemistry, Institute of Chemical Sciences and Engineering, EPFL, CH-1015 Lausanne, Switzerland
| | - Aditya Mishra
- Laboratory of Magnetic Resonance, Institute of Chemical Sciences and Engineering, EPFL, CH-1015 Lausanne, Switzerland
| | - Wolfgang R. Tress
- Laboratory of Photomolecular Science, Institute of Chemical Sciences Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Felix T. Eickemeyer
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, EPFL, CH-1015 Lausanne, Switzerland
| | - Yingguo Yang
- Shanghai Synchrotron Radiation Facility (SSRF), Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, P. R. China
| | - Fan Fu
- Laboratory for Thin Films and Photovoltaics, Empa-Swiss Federal Laboratories for Materials Science and Technology, CH-8600 Duebendorf, Switzerland
| | - Zaiwei Wang
- Laboratory of Photomolecular Science, Institute of Chemical Sciences Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Claudia E. Avalos
- Laboratory of Magnetic Resonance, Institute of Chemical Sciences and Engineering, EPFL, CH-1015 Lausanne, Switzerland
| | - Brian I. Carlsen
- Laboratory of Photomolecular Science, Institute of Chemical Sciences Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Anand Agarwalla
- Laboratory of Photomolecular Science, Institute of Chemical Sciences Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Xin Zhang
- Centre for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai 200433, P. R. China
| | - Xiaoguo Li
- Centre for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai 200433, P. R. China
| | - Yiqiang Zhan
- Centre for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai 200433, P. R. China
| | - Shaik M. Zakeeruddin
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, EPFL, CH-1015 Lausanne, Switzerland
| | - Lyndon Emsley
- Laboratory of Magnetic Resonance, Institute of Chemical Sciences and Engineering, EPFL, CH-1015 Lausanne, Switzerland
| | - Ursula Rothlisberger
- Laboratory of Computational Chemistry and Biochemistry, Institute of Chemical Sciences and Engineering, EPFL, CH-1015 Lausanne, Switzerland
| | - Lirong Zheng
- Centre for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai 200433, P. R. China
| | - Anders Hagfeldt
- Laboratory of Photomolecular Science, Institute of Chemical Sciences Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Michael Grätzel
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, EPFL, CH-1015 Lausanne, Switzerland
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173
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Liu Y, Yang Y, Chen P, Shan Y, Li Y, Shi J, Hou J, Zhang N, Zhao G, Xu J, Fang Y, Dai N. Nano Ball-Milling Using Titania Nanoparticles to Anchor Cesium Lead Bromine Nanocrystals and Energy Transfer Characteristics in TiO 2 @CsPbBr 3 Architecture. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2004126. [PMID: 32876996 DOI: 10.1002/smll.202004126] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/07/2020] [Indexed: 06/11/2023]
Abstract
Recently, all-inorganic halide perovskite (CsPbX3 , (X = Cl, Br, and I)) nanocrystals (NCs) based hybrid architectures have attracted extensive attention owing to their distinct luminescence characteristics. However, due to stress and lattice mismatch, it is still a challenge to construct heterojunctions between perovskite NCs and the nanostructures with different lattice parameters and non-cubic contour. In this work, a room temperature mechanochemical method is presented to construct TiO2 @CsPbBr3 hybrid architectures, in which TiO2 nanoparticles (NPs) with a hard lattice as nano "balls" mill off the angles and anchor to the CsPbBr3 NCs with a soft lattice. On the contrary, to ball-mill without TiO2 or with conventional ceramics balls replacing TiO2 , CsPbBr3 NCs still maintain cubic contour deriving from their cubic crystal structures. Moreover, the TiO2 @CsPbBr3 architectures display distinct improvement of photoluminescence quantum yields and more excellent thermal stability in contrast with pristine CsPbBr3 owing to the passivation of surface defect, small surface area, and energy transfer from CsPbBr3 to TiO2 . Meanwhile, there is distinct luminous decay characteristic under the radiation of UV and visible light due to the "on" and "off" TiO2 response. The method provides an alternative strategy to acquire other anchoring heterojunctions based on perovskite NCs for further regulating their luminescent characteristics.
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Affiliation(s)
- Yufeng Liu
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 200235, P. R. China
| | - Yongge Yang
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 200235, P. R. China
| | - Peng Chen
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 200235, P. R. China
| | - Yufeng Shan
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, P. R. China
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, P. R. China
| | - Yang Li
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 200235, P. R. China
| | - Jichao Shi
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 200235, P. R. China
| | - Jingshan Hou
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 200235, P. R. China
| | - Na Zhang
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 200235, P. R. China
| | - Guoying Zhao
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 200235, P. R. China
| | - Jiayue Xu
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 200235, P. R. China
| | - Yongzheng Fang
- School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, 200235, P. R. China
| | - Ning Dai
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, P. R. China
- State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, P. R. China
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174
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Zhang CC, Yuan S, Lou YH, Liu QW, Li M, Okada H, Wang ZK. Perovskite Films with Reduced Interfacial Strains via a Molecular-Level Flexible Interlayer for Photovoltaic Application. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2001479. [PMID: 32776388 DOI: 10.1002/adma.202001479] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 06/04/2020] [Indexed: 06/11/2023]
Abstract
Interface strains and lattice distortion are inevitable issues during perovskite crystallization. Silane as a coupling agent is a popular connector to enhance the compatibility between inorganic and organic materials in semiconductor devices. Herein, a protonated amine silane coupling agent (PASCA-Br) interlayer between TiO2 and perovskite layers is adopted to directionally grasp both of them by forming the structural component of a lattice unit. The pillowy alkyl ammonium bromide terminals at the upper side of the interlayer provide well-matched growth sites for the perovskite, leading to mitigated interface strain and ensuing lattice distortion; meanwhile, its superior chemical compatibility presents an ideal effect on healing the under-coordinated Pb atoms and halogen vacancies of bare perovskite crystals. The PASCA-Br interlayer also serves as a mechanical buffer layer, inducing less cracked perovskite film when bending. The developed molecular-level flexible interlayer provides a promising interfacial engineering for perovskite solar cells and their flexible application.
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Affiliation(s)
- Cong-Cong Zhang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, China
- Graduate School of Science and Engineering, University of Toyama, Toyama, 930-8555, Japan
| | - Shuai Yuan
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, China
| | - Yan-Hui Lou
- School of Energy, Soochow Institute for Energy and Materials Innovations and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, 215006, China
| | - Qing-Wei Liu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, China
| | - Meng Li
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, China
| | - Hiroyuki Okada
- Graduate School of Science and Engineering, University of Toyama, Toyama, 930-8555, Japan
| | - Zhao-Kui Wang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, China
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Yao Y, Tian E, Luo B, Niu Y, Song H, Song H, Li B. Enhanced near-ultraviolet and visible light absorption of organic-inorganic halide perovskites by co-doping with cesium and barium: Insight from first-principles calculations. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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176
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Abstract
TiO2 has extensive applications in the fields of renewable energy and environmental protections such as being used as photocatalysts or electron transport layers in solar cells. To achieve highly efficient photocatalytic and photovoltaic applications, ongoing efforts are being devoted to developing novel TiO2-based material structures or compositions, in which a first-principles computational approach is playing an increasing role. In this review article, we discuss recent computational and theoretical studies of structural, energetic, electronic, and optical properties of TiO2-based nanocluster, bulk, and material interface for photocatalytic and photovoltaic applications. We conclude the review with a discussion of future research directions in the field.
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177
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Lipomi DJ, Fenning DP, Ong SP, Shah NJ, Tao AR, Zhang L. Exploring Frontiers in Research and Teaching: NanoEngineering and Chemical Engineering at UC San Diego. ACS NANO 2020; 14:9203-9216. [PMID: 32806076 DOI: 10.1021/acsnano.0c06256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
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178
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Li Y, Yang K. High‐throughput computational design of halide perovskites and beyond for optoelectronics. WIRES COMPUTATIONAL MOLECULAR SCIENCE 2020. [DOI: 10.1002/wcms.1500] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yuheng Li
- Department of NanoEngineering and Program of Chemical Engineering University of California San Diego La Jolla California USA
| | - Kesong Yang
- Department of NanoEngineering and Program of Chemical Engineering University of California San Diego La Jolla California USA
- Program of Materials Science and Engineering University of California San Diego La Jolla California USA
- Center for Memory and Recording Research University of California San Diego La Jolla California USA
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179
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Lei Y, Chen Y, Zhang R, Li Y, Yan Q, Lee S, Yu Y, Tsai H, Choi W, Wang K, Luo Y, Gu Y, Zheng X, Wang C, Wang C, Hu H, Li Y, Qi B, Lin M, Zhang Z, Dayeh SA, Pharr M, Fenning DP, Lo YH, Luo J, Yang K, Yoo J, Nie W, Xu S. A fabrication process for flexible single-crystal perovskite devices. Nature 2020; 583:790-795. [DOI: 10.1038/s41586-020-2526-z] [Citation(s) in RCA: 157] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 05/22/2020] [Indexed: 11/09/2022]
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180
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Dong Y, Tang X, Zhang Z, Song J, Niu T, Shan D, Zeng H. Perovskite Nanocrystal Fluorescence-Linked Immunosorbent Assay Methodology for Sensitive Point-of-Care Biological Test. MATTER 2020; 3:273-286. [DOI: 10.1016/j.matt.2020.05.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
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181
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Affes K, Slimani A, Singh Y, Maalej A, Boukheddaden K. Magneto-elastic properties of a spin crossover membrane deposited on a deformable substrate. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:255402. [PMID: 32101800 DOI: 10.1088/1361-648x/ab7a4a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Spin-crossover (SCO) solids have been studied for several years due to their fascinating physical properties and their potential applications as optical switches and reversible high-density memories for information storage. Through this article, we will examine in details the effects of substrate's lattice parameters, on a deformable spin crossover membrane, simulated using an electro-elastic model taking into account the volume change at the transition. The molecules of the membrane can be either in the low spin state (LS) or the high spin state (HS), while those of the substrate are electronically neutral. Magnetic properties of the SCO membrane and the pressure distribution as a function of the lattice parameter of the substrate have been investigated. We demonstrated that the thermally induced first-order spin transition is significantly affected by the structural properties of the substrate, where a rise in the lattice parameter of the latter lowers the transition temperature and reduces the width of the thermal hysteresis loop. The investigations on the spatiotemporal aspects of the spin transition in the membrane demonstrates that the nucleation and growth processes are sensitive to the structural properties of the elastic misfit between the substrate and the SCO membrane.
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Affiliation(s)
- K Affes
- Laboratoire des Matériaux Multifonctionnels et Applications, Université de Sfax, Faculté des Sciences de Sfax, Route de la Soukra km 3.5, 3000, Sfax, Tunisia. GEMaC, CNRS-Université de Versailles Saint Quentin en Yvelines, 45 Avenue des Etats Unis, F-78035 Versailles Cedex, France
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182
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Wang Y, Long R. Rapid Decoherence Induced by Light Expansion Suppresses Charge Recombination in Mixed Cation Perovskites: Time-Domain ab Initio Analysis. J Phys Chem Lett 2020; 11:1601-1608. [PMID: 32017852 DOI: 10.1021/acs.jpclett.0c00139] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Using time-domain density functional theory combined with nonadiabatic molecular dynamics, we have investigated the effect of light-induced lattice expansion on the nonradiative electron-hole recombination in the mixed-cation perovskite FA0.75MA0.25PbI3. We demonstrate that charge carrier lifetime extends by a factor of 1.5 within 1% lattice expansion; the bandgap grows only by 0.04 eV; the electron-phonon coupling increases by 13%; and the decoherence time shortens by 37%. The small bandgap change has negligible influence on recombination times. Lattice expansion enhances atomic fluctuations that lead to the enhancement of electron-phonon coupling and acceleration of decoherence. By creating several high-frequency phonon modes, the lattice expansion shortens the decoherence time further. As a result, rapid decoherence beats an enhanced electron-phonon coupling, playing the dominant role in suppressing the nonradiative electron-hole recombination. The light-induced lattice expansion or strain effects provide a rational route to improve the perovskite photovoltaic and photoelectronic device performance.
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Affiliation(s)
- Yutong Wang
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education , Beijing Normal University , Beijing 100875 , 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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183
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Zhang Y, Xu X. Machine learning lattice constants for cubic perovskite A22+BB′O6 compounds. CrystEngComm 2020. [DOI: 10.1039/d0ce00928h] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The GPR model (M2) is developed to elucidate the statistical relationship among ionic radii, electronegativities, oxidation states, and lattice constants for cubic A22+BB′O6 perovskites. The model demonstrates a high degree of accuracy and stability.
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Affiliation(s)
- Yun Zhang
- North Carolina State University
- Raleigh
- USA
| | - Xiaojie Xu
- North Carolina State University
- Raleigh
- USA
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184
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Nie R, Lee KS, Hu M, Seok SI. Strain Tuning via Larger Cation and Anion Codoping for Efficient and Stable Antimony-Based Solar Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 8:2002391. [PMID: 33437577 PMCID: PMC7788500 DOI: 10.1002/advs.202002391] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/24/2020] [Indexed: 06/12/2023]
Abstract
Strain induced by lattice distortion is one of the key factors that affect the photovoltaic performance via increasing defect densities. The unsatisfied power conversion efficiencies (PCEs) of solar cells based on antimony chalcogenides (Sb-Chs) are owing to their photoexcited carriers being self-trapped by the distortion of Sb2S3 lattice. However, strain behavior in Sb-Chs-based solar cells has not been investigated. Here, strain tuning in Sb-Chs is demonstrated by simultaneously replacing Sb and S with larger Bi and I ions, respectively. Bi/I codoped Sb2S3 cells are fabricated using poly[2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b']dithiophene)-alt-4,7-(2,1,3-enzothiadiazole)] as the hole-transporting layer. Codoping reduced the bandgap and rendered a bigger tension strain (1.76 × 10-4) to a relatively smaller compression strain (-1.29 × 10-4). The 2.5 mol% BiI3 doped Sb2S3 cell presented lower trap state energy level than the Sb2S3 cell; moreover, this doping amount effectively passivated the trap states. This codoping shows a similar trend even in the low bandgap Sb2(SxSe1-x)3 cell, resulting in 7.05% PCE under the standard illumination conditions (100 mW cm-2), which is one of the top efficiencies in solution processing Sb2(SxSe1-x)3 solar cells. Furthermore, the doped cells present higher humidity, thermal and photo stability. This study provides a new strategy for stable Pb-free solar cells.
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Affiliation(s)
- Riming Nie
- School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) 50 UNIST‐gilEonyang‐eupUlju‐gunUlsan44919Republic of Korea
| | - Kyoung Su Lee
- School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) 50 UNIST‐gilEonyang‐eupUlju‐gunUlsan44919Republic of Korea
| | - Manman Hu
- School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) 50 UNIST‐gilEonyang‐eupUlju‐gunUlsan44919Republic of Korea
| | - Sang Il Seok
- School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) 50 UNIST‐gilEonyang‐eupUlju‐gunUlsan44919Republic of Korea
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185
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