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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：无
其他任职：精细化工国家重点实验室副主任、大连理工大学-瑞典皇家工学院分子器件联合研究中心主任
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：应用化学. 精细化工
办公地点：大连理工大学西部校区化工实验楼E-223
联系方式：0411-84986493
电子邮箱：sunlc@dlut.edu.cn
Molecular Design of D-pi-A Type II Organic Sensitizers for Dye Sensitized Solar Cells
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论文类型：期刊论文
发表时间：2012-10-01
发表刊物：CHINESE JOURNAL OF CHEMISTRY
收录刊物：SCIE、Scopus
卷号：30
期号：10
页面范围：2315-2321
ISSN号：1001-604X
关键字：type II sensitizers; D-p-A; photovoltaic devices; solar cells
摘要：Four new type II organic dyes with D-pi-A structure (donor-p-conjugated-acceptor) and two typical type II sensitizers based on catechol as reference dyes are synthesized and applied in dye sensitized solar cells (DSCs). The four dyes can be adsorbed on TiO2 through hydroxyl group directly. Electron injection can occur not only through the anchoring group (hydroxyl group) but also through the electron-withdrawing group (?CN) located close to the semiconductor surface. Experimental results show that the type II sensitizers with a D-pi-A system obviously outperform the typical type II sensitizers providing much higher conversion efficiency due to the strong electronic push-pull effect. Among these dyes, LS223 gives the best solar energy conversion efficiency of 3.6%, with Jsc=7.3 mA center dot cm-2, Voc=0.69 V, FF=0.71, the maximum IPCE value reaches 74.9%.