Flexible and efficient perovskite quantum dot solar cells via hybrid interfacial architecture
| Autor: | Joseph M. Luther, Shujuan Huang, Chun-Ho Lin, Qi Lei, Dewei Chu, Soshan Cheong, Xinwei Guan, Tom Wu, Jianyu Yuan, Qian Zhao, Wan Tao, Lei Shi, Long Hu, Robert Patterson, Jiyun Kim, Anita Ho-Baillie, Richard D. Tilley, Jianghui Zheng |
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| Rok vydání: | 2020 |
| Předmět: |
Solar cells
Materials science Science General Physics and Astronomy 02 engineering and technology 010402 general chemistry 01 natural sciences General Biochemistry Genetics and Molecular Biology Article law.invention law Photovoltaics Solar cell Thin film Nanoscopic scale Perovskite (structure) Multidisciplinary business.industry Quantum dots Photovoltaic system Heterojunction General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Quantum dot Optoelectronics 0210 nano-technology business |
| Zdroj: | Nature Communications Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021) |
| ISSN: | 2041-1723 |
| Popis: | All-inorganic CsPbI3 perovskite quantum dots have received substantial research interest for photovoltaic applications because of higher efficiency compared to solar cells using other quantum dots materials and the various exciting properties that perovskites have to offer. These quantum dot devices also exhibit good mechanical stability amongst various thin-film photovoltaic technologies. We demonstrate higher mechanical endurance of quantum dot films compared to bulk thin film and highlight the importance of further research on high-performance and flexible optoelectronic devices using nanoscale grains as an advantage. Specifically, we develop a hybrid interfacial architecture consisting of CsPbI3 quantum dot/PCBM heterojunction, enabling an energy cascade for efficient charge transfer and mechanical adhesion. The champion CsPbI3 quantum dot solar cell has an efficiency of 15.1% (stabilized power output of 14.61%), which is among the highest report to date. Building on this strategy, we further demonstrate a highest efficiency of 12.3% in flexible quantum dot photovoltaics. Perovskite quantum dots film has better mechanical stability and structural integrity compared to bulk thin film. Here, the authors demonstrate higher endurance of quantum dot films and develop hybrid CsPbI3 QD/PCBM device with PCE of 15.1% and 12.3% on rigid and flexible substrates, respectively. |
| Databáze: | OpenAIRE |
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