Journal
JOURNAL OF POWER SOURCES
Volume 351, Issue -, Pages 123-129Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2017.03.087
Keywords
Bulk heterojunction; Perovskite solar cell; Room temperature; Tin oxide; Flexible
Funding
- National High Technology Research and Development Program [2015AA050601]
- National Natural Science Foundation of China [11674245, 61376013, 91433203, J1210061]
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Perovskite solar cells have developed rapidly in recent years as the third generation solar cells. In spite of the great improvement achieved, there still exist some issues such as undesired hysteresis and indispensable high temperature process. In this work, bulk heterojunction perovskite-phenyl-C-61-butyric acid methyl ester solar cells have been prepared to diminish hysteresis using a facile two step spin-coating method. Furthermore, high quality tin oxide films are fabricated using pulse laser deposition technique at room temperature without any annealing procedure. The as fabricated tin oxide film is successfully applied in bulk heterojunction perovskite solar cells as a hole blocking layer. Bulk heterojunction devices based on room temperature tin oxide exhibit almost hysteresis-free characteristics with power conversion efficiency of 17.29% and 14.0% on rigid and flexible substrates, respectively. (C) 2017 Elsevier B.V. All rights reserved.
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