期刊
JOURNAL OF POWER SOURCES
卷 341, 期 -, 页码 340-347出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2016.12.026
关键词
Perovskite solar cells; Roll to roll; Colourless polyimide; CH3NH3PbI3; Thermal stability; ITO
资金
- Korea Government (MSIP) (Technology Development Program to Solve Climate Changes) [2015M1A2A2055631]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry AMP
- Energy (MOTIE) of the Republic of Korea [20163010012200]
- National Research Foundation of Korea [2015M1A2A2054991] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We fabricated high-performance flexible CH3NH3PbI3 (MAPbI3) perovskite solar cells with a power conversion efficiency of 15.5% on roll-to-roll sputtered ITO films on 60 mu m-thick colourless polyimide (CPI) substrate. Due to the thermal stability of the CPI substrate, an ITO/CPI sample subjected to rapid thermal annealing at 300 degrees C showed a low sheet resistance of 57.8 Omega/square and high transmittance of 83.6%, which are better values than those of an ITO/PET sample. Outer and inner bending tests demonstrated that the mechanical flexibility of the ITO/CPI was superior to that of the conventional ITO/PET sample owing to the thinness of the CPI substrate. In addition, due to its good mechanical flexibility, the ITO/CPI showed no change in resistance after 10,000 cycle outer and inner dynamic fatigue tests. Flexible perovskite solar cells with the structure of Au/PTAA/MAPbI3/ZnO/ITO/CPI showed a high power conversion efficiency of 15.5%. The successful operation of these flexible perovskite solar cells on ITO/CPI substrate indicated that the ITO film on thermally stable CPI substrate is a promising of flexible substrate for high-temperature processing, a finding likely to advance the commercialization of cost-efficient flexible perovskite solar cells. (C) 2016 Elsevier B.V. All rights reserved.
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