Efficient organic solar cells with helical perylene diimide electron acceptors.
Efficient organic solar cells with helical perylene diimide electron acceptors.
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DOI：
10.1021/ja5092613
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发表时间：
2014-10
影响因子：
15
通讯作者：
Y. Zhong;M. Trinh;Rongsheng Chen;W. Wang;P. P. Khlyabich-P.;B. Kumar;Qizhi Xu;C. Nam;M. Sfeir-M.-S
中科院分区：
文献类型：
--
作者：
Y. Zhong;M. Trinh;Rongsheng Chen;W. Wang;P. P. Khlyabich-P.;B. Kumar;Qizhi Xu;C. Nam;M. Sfeir-M.-S
我们报告的效率为6.1%的溶液处理的非富勒烯太阳能电池使用的螺旋二酰亚胺（PDI）二聚体作为电子受体。飞秒瞬态吸收光谱揭示了电子和空穴在施主-受主界面的转移过程，表明载流子是由电子施主和受主相的光生激子产生的。光强度依赖的电流-电压测量表明不同的复合率在短路和开路条件下。
We report an efficiency of 6.1% for a solution-processed non-fullerene solar cell using a helical perylene diimide (PDI) dimer as the electron acceptor. Femtosecond transient absorption spectroscopy revealed both electron and hole transfer processes at the donor-acceptor interfaces, indicating that charge carriers are created from photogenerated excitons in both the electron donor and acceptor phases. Light-intensity-dependent current-voltage measurements suggested different recombination rates under short-circuit and open-circuit conditions.