Organometal halide perovskite solar cells: degradation and stability
Organometal halide perovskite solar cells have evolved in an exponential manner in the two key areas of efficiency and stability. The power conversion efficiency (PCE) reached 20.1% late last year. The key disquiet was stability, which has been limiting practical application, but now the state of th...
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| Published in | Energy & environmental science Vol. 9; no. 2; pp. 323 - 356 |
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| Main Authors | , , , , , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
01.02.2016
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| Subjects | |
| Online Access | Get full text |
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| Summary: | Organometal halide perovskite solar cells have evolved in an exponential manner in the two key areas of efficiency and stability. The power conversion efficiency (PCE) reached 20.1% late last year. The key disquiet was stability, which has been limiting practical application, but now the state of the art is promising, being measured in thousands of hours. These improvements have been achieved through the application of different materials, interfaces and device architecture optimizations, especially after the investigation of hole conductor free mesoporous devices incorporating carbon electrodes, which promise stable, low cost and easy device fabrication methods. However, this work is still far from complete. There are various issues associated with the degradation of Omh-perovskite, and the interface and device instability which must be addressed to achieve good reproducibility and long lifetimes for Omh-PSCs with high conversion efficiencies. A comprehensive understanding of these issues is required to achieve breakthroughs in stability and practical outdoor applications of Omh-PSCs. For successful small and large scale applications, besides the improvement of the PCE, the stability of Omh-PSCs has to be improved. The causes of failure and associated mechanisms of device degradation, followed by the origins of degradation, approaches to improve stability, and methods and protocols are discussed in detail and form the main focus of this review article.
What are the bottlenecks for organometal halide perovskite solar cells to achieve the stability required for commercialization? |
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| Bibliography: | Bing-Joe Hwang studied Chemical Engineering and received his PhD in 1987 at the National Cheng Kung University, Taiwan. Since 2006, he has served as chair professor at National Taiwan University of Science and Technology. His research work has spanned a wide range of subjects from electrochemistry to spectroscopy, interfacial phenomena, materials science and theoretical chemistry. He has established both experimental and computational strategies for the development of new nanoscale materials. His theoretical work has led to a better understanding of reaction mechanisms on nanoparticles and to an improved ability to predict the properties of potential new materials for ion batteries, fuel cells and solar cells. Meng-Che Tsai received his PhD degree in Chemical Engineering from National Taiwan University of Science and Technology (NTUST) in Taiwan in 2013, and his advisor is Professor Bing-Joe Hwang. He is currently a postdoctoral fellow at NTUST. His research interests include the design and synthesis of advanced energy materials by using a computational approach containing energy conversion and storage. Taame Abraha is a PhD student in the Graduate Institute of Applied Science and Technology at National Taiwan University of Science and Technology, Taiwan. He received his Bachelor in Chemistry from Wollo University in 2009 and master's degree in Chemistry (Physical) from Bahir Dar University, Ethiopia in 2011. Then, he joined Adigrat University and worked as head of chemistry and Dean, College of Natural and Computational Sciences till 2014. Currently, he is conducting his PhD under Prof. Bing-Joe Hwang and Prof. Wei-Nien Su, focusing on the synthesis and stability of organometal halide perovskite solar cells, structural changes and defect studies using in situ techniques. Wei-Nien Su is currently an assistant professor of the Graduate Institute of Applied Science and Technology at National Taiwan University of Science and Technology (NTUST), Taiwan. His research interests are rooted in materials synthesis and characterization of nanocatalysts for various electrochemical devices and energy applications. Prof. Su is currently involved in various international and national research programs. He received his PhD from the Wolfson School, Loughborough University (UK) and his Diplom-Ing. in Chemical Engineering from Universität Stuttgart (Germany). Chun-Jern Pan received his PhD degree from NTUST in 2012. He is currently a post-doctoral researcher in Prof. Bing-Joe Hwang's laboratory at the Department of Chemical Engineering, NTUST. Dr Chun-Jern Pan's research field is mainly in characterizing energy materials using in situ X-ray absorption spectroscopy and X-ray diffraction. These techniques have been adopted to investigate the structure of energy related materials, such as solar cell materials, catalysts and electrode materials for batteries. Ching-Hsiang Chen received his PhD in Chemical Engineering from National Taiwan University of Science and Technology (NTUST). He is currently the global business director in Uninanotech Co., Ltd. and he is also an adjunct assistant professor in the Sustainable Energy Development Center in NTUST. His research interests include surface enhanced spectroscopy and ultra fast spectroscopy in energy and biomedical science. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 1754-5692 1754-5706 |
| DOI: | 10.1039/c5ee02733k |