High-efficiency and stable piezo-phototronic organic perovskite solar cell |
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| Authors: | Ke Gu Dongqi Zheng Lijie Li Yan Zhang |
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| Affiliation: | School of Electronic Science and Engineering, School of Physics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054 China ; Multidisciplinary Nanotechnology Centre, College of Engineering, Swansea University, Swansea SA1 8EN UK.; Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083 China.; College of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing 100049 China |
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| Abstract: | Perovskite materials are regarded as next-generation organic photovoltaic (OPV) materials due to their excellent physical and chemical properties. Recent theoretical and experimental advances also revealed the piezoelectric properties of CH3NH3PbI3 perovskite thin films. In this work, a CH3NH3PbI3 perovskite piezo-phototronic solar cell is studied in theory. The output parameters such as open circuit voltage, current–voltage characteristics, fill factor, power conversion efficiency, and maximum output power with external strains are presented. The coefficient to characterize piezo-phototronic modulation is also calculated for the piezo-phototronic solar cell. With the change of strain, the output performance can be controlled and enhanced. This principle can offer not only a novel and unique approach to produce high-performance, stable perovskite solar cells, but also a principle to design new piezoelectric perovskite optoelectronic devices.Enhancing the performance of perovskite solar cells with strain based on a piezo-phototronic effect. |
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