標題: Thermally Stable High-Performance Polymer Solar Cells Enabled by Interfacial Engineering
作者: Chen, Chao-Hsuan
Lin, Zhi-Wei
Huang, Kuan-Min
Meng, Hsin-Fei
Chen, Szu-Han
Ge, Ziyi
Zan, Hsiao-Wen
Chang, Chih-Yu
Chao, Yu-Chiang
Horng, Sheng-Fu
光電學院
物理研究所
光電工程學系
College of Photonics
Institute of Physics
Department of Photonics
關鍵字: electrodes;heterojunctions;interfaces;polymers;solar cells
公開日期: 20-Jul-2018
摘要: Interfacial engineering plays an important role in determining the performance and stability of polymer solar cells (PSCs). In this study, thermally stable highly efficient PSCs are fabricated by incorporating a solution-processed cathode interfacial layer (CIL), including 4,4'-({[methyl(4-sulfonatobutyl)ammonio]bis(propane-3,1-diyl)}bis(dimethylammoniumdiyl))bis(butane-1-sulfonate) (MSAPBS) and polyethylenimine (PEI). For PSCs based on blends of poly{4,8-bis[5-(2-ethylhexyl)thiophen-2-yl]benzo[1,2-b;4,5-b]dithiophene-2,6-diyl-alt-[4-(2-ethylhexyl)-3-fluorothieno[3,4-b]thiophene-2-carboxylate-2,6-diyl]} (PBDTTT-EFT) and [6,6]-phenyl C-71-butyric acid methyl ester (PC71BM), the maximum power conversion efficiency (PCE) of inverted PSCs reaches 8.1% and 7.2% for MSAPBS and PEI CILs, respectively. The inverted PEI devices exhibit remarkable stability (lifetime >6000h) under accelerated thermal aging (at 80 degrees C in ambient environment), which is much superior to that of the device with commonly used LiF CIL (lifetime approximate to 33h). This stability represents the best result reported for PSCs. The promising results based on this strategy can stimulate further work on the development of novel CILs for PSCs and pave the way towards the realization of commercially viable PSCs with high performance and long-term stability.
URI: http://dx.doi.org/10.1002/cssc.201800768
http://hdl.handle.net/11536/147910
ISSN: 1864-5631
DOI: 10.1002/cssc.201800768
期刊: CHEMSUSCHEM
Volume: 11
起始頁: 2429
結束頁: 2435
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