標題: Enhanced crystallization and stability of perovskites by a cross-linkable fullerene for high-performance solar cells
作者: Li, Meng
Chao, Yi-Hsiang
Kang, Tin
Wang, Zhao-Kui
Yang, Ying-Guo
Feng, Shang-Lei
Hu, Yun
Gao, Xing-Yu
Liao, Liang-Sheng
Hsu, Chain-Shu
應用化學系
Department of Applied Chemistry
公開日期: 2016
摘要: Organic-inorganic halide perovskite solar cells (PSCs) still suffer from the issues of poor reproducibility and inferior stability despite their considerable increase in efficiency. Here, we demonstrate planar PSCs with simultaneously improved device characteristics and stability by introducing a cross-linkable [6,6]-phenyl-C-61-butyric styryl dendron ester (PCBSD) into CH3NH3PbIxCl3-x perovskites. The cross-linkable merit of C-PCBSD can enhance the crystallization of perovskites and address the issue of low electron extraction efficiency. In addition, the anti-solvent network of C-PCBSD facilitates the sequential solution process and prevents washing by the solvent used in the upper layer. The C-PCBSD network resisted the moisture incursion and protected the interfaces from erosion, and it passivated the voids or pinholes generated in the bulk active layer. As a result, an outstanding PSC with a power conversion efficiency of 17.21% is achieved with evidently improved cell stability.
URI: http://dx.doi.org/10.1039/c6ta06152d
http://hdl.handle.net/11536/132712
ISSN: 2050-7488
DOI: 10.1039/c6ta06152d
期刊: JOURNAL OF MATERIALS CHEMISTRY A
Volume: 4
Issue: 39
起始頁: 15088
結束頁: 15094
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