High-efficiency polymer solar cells by blade coating in chlorine-free solvents

被引:51
作者
Tsai, Pei-Ting [1 ]
Tsai, Chia-Ying [2 ]
Wang, Chun-Ming [1 ]
Chang, Yu-Fan [3 ,4 ]
Meng, Hsin-Fei [1 ]
Chen, Zhi-Kuan [5 ]
Lin, Hao-Wu [6 ]
Zan, Hsiao-Wen [3 ,4 ]
Horng, Sheng-Fu [7 ]
Lai, Yi-Chun [3 ,4 ]
Yu, Peichen [3 ,4 ]
机构
[1] Natl Chiao Tung Univ, Inst Phys, Hsinchu 300, Taiwan
[2] Natl Tsing Hua Univ, Inst Photon Technol, Hsinchu 300, Taiwan
[3] Natl Chiao Tung Univ, Dept Photon, Hsinchu 300, Taiwan
[4] Natl Chiao Tung Univ, Inst Electroopt Engn, Hsinchu 300, Taiwan
[5] Nanjing Univ Technol, Inst Adv Mat, Nanjing 210009, Jiangsu, Peoples R China
[6] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan
[7] Natl Tsing Hua Univ, Dept Elect Engn, Hsinchu 300, Taiwan
关键词
PBDTTT-C-T; Chlorine-free solvents; Blade coating; Polymer solar cells; OPEN-CIRCUIT VOLTAGE; PHOTOVOLTAIC PERFORMANCE; MATERIAL SOLUBILITY; MORPHOLOGY; CRYSTAL; DESIGN; BLENDS; PCBM;
D O I
10.1016/j.orgel.2014.01.018
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
High-performance polymer cells are typically fabricated by employing toxic solvents such as dichlorobenzene and chlorobenzene. In this study, blade coating with the chlorine-free solvents toluene and xylene is applied to polymer solar cells that contained the low band-gap polymer PBDTTT-C-T blended with [6,6]-phenyl-C71-butyric acid methyl ester ([70]PCBM). The highest efficiencies of the cells fabricated in toluene and xylene solutions were 6.09% and 6.11%, respectively. Atomic force microscopy images show that the films formed by blade coating using toluene and xylene were extremely smooth, with roughness of only 1 nm. This blade coating has a rapid-drying in a few seconds without the long-running thermal or solvent annealing. The possibility of high-volume environmentally-friendly fabrication of efficient polymer solar cells with minimal material waste is thus demonstrated using a combination of chlorine-free solvents and blade coating. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:893 / 903
页数:11
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