期刊
MACROMOLECULES
卷 45, 期 11, 页码 4564-4571出版社
AMER CHEMICAL SOC
DOI: 10.1021/ma300742r
关键词
-
资金
- Japan Society for the Promotion of Science
- Ministry of Education, Culture, Sports, Science and Technology, Japan
- Sumitomo Chemical Co., Ltd.
- Grants-in-Aid for Scientific Research [24655123, 23245032, 20108004] Funding Source: KAKEN
New donor acceptor-type copolymers containing dioxocycloalkene-annelated thiophenes as electron-accepting units have been designed and synthesized for application to p-type organic semiconducting materials in organic photovoltaics. The investigation of their photophysical and electrochemical properties revealed that these copolymers possessed low optical bandgaps (from 1.63 to 1.92 eV) and low-lying HOMO energy levels (from -5.41 to -5.33 eV). Organic field-effect transistor measurements revealed that these copolymers had hole-transporting characteristics with mobilities on the order of 10(-7)-10(-4) cm(2) V-1 s(-1). The bulk-heterojunction photovoltaic devices fabricated from blends of these copolymers with fullerene derivatives as acceptors showed high power conversion efficiencies of up to 4.87%, with an open-circuit voltage of 0.90 V, a short-circuit current of 11.46 mA cm(-2), and a fill factor of 0.48 under air mass 1.5 simulated solar illumination.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据