期刊
CARBON
卷 131, 期 -, 页码 31-37出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2018.01.090
关键词
Solution-processed functionalized reduced graphene oxide; Vinyl triethoxysilane; Electron buffer layer; Stability; High-performance solar cells
资金
- National Natural Science Foundation of China [21604092, 51472174, 21776147]
- International Science & Technology Cooperation Program of China [2014DFA60150]
- Department of Science and Technology of Shandong Province [2016GGX104010]
- Department of Education of Shandong Province [J16LA14, J17KA013]
- Youth Innovation Promotion Association CAS [2016194]
Interfacial buffer layer is a primary requirement for highly efficient and stable organic solar cells (OSCs) and has become a significant part of OSC research today. Here, highly dispersed functionalized reduced graphene oxide (FGr) was obtained as a stable electron buffer layer (EBL) for high-performance conventional solar cells. The power conversion efficiency of FGr-based devices (9.47% for PTB7-Th: PC71BM and 4.05% for P3HT: PC71BM) outperforms PFN-based devices (8.94% and 3.52%). Furthermore, the stability of the devices was greatly improved with FGr as EBL compared to PFN, and only dropped 7.4% of its original value after stored for 61 days. The results indicate that solution-processed functionalized reduced graphene oxide is a promising interfacial material and an excellent candidate as electron buffer layer. (C) 2018 Elsevier Ltd. All rights reserved.
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