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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
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.