Synthesis of Novel Push-Pull Chromophores based on N-Ethylcarbazole for Vacuum Deposition Processed Organic Photovoltaics

被引：7
作者：
Kono, Takahiro [1 ,2 ]
Shibata, Yosei [1 ]
Wang, Zhiping [1 ]
Miyadera, Tetsuhiko [1 ,3 ]
Yoshida, Yuji [1 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, Res Ctr Photovolta Technol, Tsukuba, Ibaraki 3058565, Japan
[2] Shinshu Univ, Ctr Energy & Environm Sci, Ueda, Nagano 3868567, Japan
[3] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan
来源：
CHEMISTRY LETTERS | 2015年 / 44卷 / 07期
基金：
日本科学技术振兴机构;
关键词：
EFFICIENT MOLECULAR PHOTOVOLTAICS; ENERGY-CONVERSION EFFICIENCY; HETEROJUNCTION SOLAR-CELLS; DYES; PERFORMANCE;
D O I：
10.1246/cl.150216
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Two novel p-type materials, Cz(Et)ThOM and Cz(Et)OM- respectively with and without a thiophene pi-spacing unit-have been synthesized for vacuum-deposited organic photovoltaics (OPVs). The power conversion efficiencies of planar heterojunction OPVs of the former are clearly higher than that of the latter. Further improvement of the device with Cz(Et)ThOM was obtained by employing bulk heterojunction structure and post-annealing. The structural analysis of thin films by synchrotron X-ray diffraction and atomic force microscopy shows that this improvement is due to Cz(Et)ThOM becoming highly ordered during annealing.
引用
收藏
页码：958 / 960
页数：3
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