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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Initial light soaking treatment enables hole transport material to outperform spiro-OMeTAD in solid-state dye-sensitized solar cells

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论文类型:期刊论文

发表时间:2013-05-15

发表刊物:Journal of the American Chemical Society

收录刊物:EI、Scopus

卷号:135

期号:19

页面范围:7378-7385

ISSN号:00027863

摘要:Efficient solid state dye-sensitized solar cells (sDSCs) were obtained using a small hole transport material, MeO-TPD (N,N,N',N'- tetrakis(4-methoxyphenyl)benzidine), after an initial light soaking treatment. It was discovered that the light soaking treatment for the MeO-TPD based solar cells is essential in order to achieve the high efficiency (4.9%), which outperforms spiro-OMeTAD based sDSCs using the same dye and device preparation parameters. A mechanism based on Li+ ion migration is suggested to explain the light soaking effect. It was observed that the electron lifetime for the MeO-TPD based sDSC strongly increases after the light soaking treatment, which explains the higher efficiency. After the initial light soaking treatment the device efficiency remains considerably stable with only 0.2% decrease after around 1 month (unsealed cells stored in dark). ? 2013 American Chemical Society.