孙立成

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

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Efficient Organic Sensitizers with Pyridine-N-oxide as an Anchor Group for Dye-Sensitized Solar Cells

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论文类型:期刊论文

发表时间:2014-09-01

发表刊物:CHEMSUSCHEM

收录刊物:SCIE、EI、PubMed、Scopus

卷号:7

期号:9

页面范围:2640-2646

ISSN号:1864-5631

关键字:dyes/pigments; electrochemistry; photochemistry; sensitizers; structure-activity relationships

摘要:Five organic dyes with pyridine-N-oxide as the anchor group and electron acceptor have been synthesized and applied in dye-sensitized solar cells (DSSCs). Benzothiadiazole was introduced in the conjugation system to increase the electron withdrawing properties, FTIR spectra showed that the coordination was between the pyridine-N-oxide and the Bronsted acid site on the TiO2 surface. The relationship between different dye structures and the performance of the DSSCs was investigated systematically. The location of the thiophene unit was studied, and the direct linkage of benzothiadiazole with pyridine-Noxide was beneficial to broaden the absorption. The donor-acceptor-acceptor-configured dye WL307, which has 2-ethylhexyloxy chains in the donor part, showed the best efficiency of 6.08% under 100 mWcm(-2) light illumination. The dye series showed a fairly good stability during the one month test period.