Self-encapsulated semi-transparent perovskite solar cells with water-soaked stability and metal-free electrode |
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| Affiliation: | 1. College of Chemistry, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China;2. Jiangxi Provincial Key Laboratory of New Energy Chemistry/Institute of Polymers, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China;1. Functional Crystallization Center (ERC), Department of Chemical Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 17104, Republic of Korea;2. Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 136-713, Republic of Korea;1. School of Metallurgy and Environment, Central South University, Changsha 410083, China;2. Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China;3. School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia;1. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, People''s Republic of China;2. College of Physics, Jilin University, 119 Jiefang Road, Changchun 130023, People''s Republic of China;1. Commonwealth Scientific and Industrial Research Organization (CSIRO), Manufacturing, Clayton, Victoria 3168, Australia;2. PFPC, School of Chemistry, The University of Melbourne, Melbourne, Victoria 3010, Australia;3. Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia;1. Department of Chemical and Biomolecular Engineering (BK21+ Program), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea;2. School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Republic of Korea |
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| Abstract: | Semi-transparent and self-encapsulated perovskite solar cells could be fabricated by simply laminating the front sub-cell (ITO/poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS)/CH3NH3PbI3) and back sub-cell (FTO/compact-TiO2/mesoporous-TiO2/CH3NH3PbI3), without vacuum-evaporating metal electrode. The addition of chlorobenzene (CB) between two perovskite layers accelerated perovskite crystals interfusion and close interfacial contact from two separated sub-cells, which contributed to perovskite film with high crystallinity and light absorption in laminated cells. The self-encapsulated perovskite solar cell (device area of 0.39 cm2) with CB treatment not only showed power conversion efficiency of 6.9%, but also existed excellent stability even if soaking in water for 24 h. This novel approach to fabricate semi-transparent, solution-processible, cost-effective and high-stable perovskite solar cells may provide a reliable royal road for realizing commercial application in exterior building window, with the combination of large-area roll-to-roll printing technique, etc. |
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| Keywords: | Perovskite solar cells Semi-transparent Self-encapsulation Stability |
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