https://scholars.lib.ntu.edu.tw/handle/123456789/636847
標題: | Toward Long-Term Stable and Efficient Large-Area Organic Solar Cells | 作者: | Tsai, Pei-Ting Lin, Kuan-Chu Wu, Cheng-Yu Liao, Chung-Hung Lin, Man-Chun Wong, Ying Qian Meng, Hsin-Fei Chang, Chih-Yu CHIEN LUNG WANG Huang, Yi-Fan Horng, Sheng-Fu Zan, Hsiao-Wen Chao, Yu-Chiang |
關鍵字: | annealing; blade coating; organic solar cells; power conversion efficiency; stability | 公開日期: | 10-七月-2017 | 卷: | 10 | 期: | 13 | 起(迄)頁: | 2778 | 來源出版物: | ChemSusChem | 摘要: | Here, we report that long-term stable and efficient organic solar cells (OSCs) can be obtained through the following strategies: i) combination of rapid-drying blade-coating deposition with an appropriate thermal annealing treatment to obtain an optimized morphology of the active layer; ii) insertion of interfacial layers to optimize the interfacial properties. The resulting devices based on 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):[6,6]-phenyl C71 butyric acid methyl ester (PC71 BM) blend as the active layer exhibits a power conversion efficiency (PCE) up to 9.57 %, which represents the highest efficiency ever reported for blade-coated OSCs. Importantly, the conventional structure devices based on poly(3-hexylthiophene) (P3HT):phenyl-C61 -butyric acid methyl ester (PCBM) blend can retain approximately 65 % of their initial PCE for almost 2 years under operating conditions, which is the best result ever reported for long-term stable OSCs under operational conditions. More encouragingly, long-term stable large-area OSCs (active area=216 cm2 ) based on P3HT:PCBM blend are also demonstrated. Our findings represent an important step toward the development of large-area OSCs with high performance and long-term stability. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/636847 | ISSN: | 18645631 | DOI: | 10.1002/cssc.201700601 |
顯示於: | 化學系 |
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