期刊
Solar RRL
标题
Realization of Large-Scale Polymer Solar Cells Using Ultrasonic Spray Technique Via Solvent Engineering
作者
Jiang Cheng, Rong Hu, Xiang Meng, Ying Li, Xingwu Yan, Xin Yang, Xiaoqing Liao, Lu Li, Qibing Pei, Kok Boon Chong
摘要
Reliability and reproducibility remain as main challenges in the realization of large-scale polymer solar cells. In article no. 1800064, Jiang Cheng, Lu Li and co-workers demonstrate a smart method to prototyping high yield and largescale PTB7:PC71BM solar cells using ultrasonic spray coating. Marangoni-effect related coffee-rings and pin holes are successfully overcome via tuning the drying processes. The formation of PTB7-enriched surface, confirmed in solvent engineering, led to an improved PTB7:PC71BM blend film, and the influence on the device characteristic performance was systematically studied. The power conversion efficiency of the device is improved to 8.23%, and the preparation of a large-scale active area solar cell of 18 cm2 with a maximum power output of 74.8 mW is demonstrated promising for industrial applications.
原文链接
https://onlinelibrary.wiley.com/doi/abs/10.1002/solr.201870184