期刊

Solar RRL

标题

Binary Solvent Additives Treatment Boosts the Efficiency of PTB7:PCBM Polymer Solar Cells to Over 9.5%

作者

Yifan Zheng, Gang Wang, Di Huang, Jaemin Kong, TengHooi Goh, Wei Huang, Junsheng Yu, André D. Taylor

摘要

In article number 1700144, Yifan Zheng, Junsheng Yu and co‐workers demonstrate a high efficiency polymer solar cell (PSC) through introducing a novel binary solvent additive combination of DPE:DIO (diphenyl ether und 1,8‐diiodoctane). This binary solvent additive system of DPE:DIO combines the influence of DIO on the PC70BM dispersion together with that of DPE on the PTB7 crystallization. As a result, a significant improvement in power conversion efficiency from 6.96% to over 9.25% has been obtained, which is among the best results reported so far in the literature for PTB7:PC70BM PSCs. It is believed that this approach could have a broad appeal towards improving PSC performance by separately controlling the morphology of donor crystallinity and fullerene dispersion, thus providing an ideal platform for record‐breaking PSCs in the near future.

原文链接

https://onlinelibrary.wiley.com/doi/abs/10.1002/solr.201870161