Fabricating high performance conventional and inverted polymer solar cells by spray coating in air

作者：Zhang, Yiwei; Scarratt, Nicholas W.; Wang, Tao^*; Lidzey, David G.^*

来源：Vacuum, 2017, 139: 154-158.

DOI：10.1016/j.vacuum.2016.09.017

• Spray-casting
• Bulk heterojunction solar cells
• OPV
• PEDOT:PSS
• ZnO
• PffBT4T-2OD:PC71BM

We report bulk heterojunction organic solar cells utilising the electron-donating polymer PffBT4T-2OD blended with the fullerene acceptor PC71BM, with cells explored based on both conventional and inverted architectures. As charge-transporting layers, we utilise the hole-transporting polymer poly (2, 3-dihydrothieno-1, 4-dioxin)-poly (styrenesulfonate) (PEDOT:PSS) in conventional device architectures, and zinc oxide (ZnO) electron-transport in inverted devices. Critically, all charge-transporting layers and the poly[(5,6-difiuoro-2,1,3-benzothiadiazol-4,7-diyl)-alt- (3,3"'-di(2-octyldodecyl) 2,2'; 5',2 ''; 5 '',2"'-quaterthiophen-5,5"'-diyl)] (PffBT4T-2OD): [6,6]-phenyl C71 butyric acid methyl ester (PC71BM) active layer blend were spray coated in air. We demonstrate champion devices having a power conversion efficiency of 8.13% and 8.43% for conventional and inverted architectures respectively.

• 出版日期2017-5
• 单位武汉理工大学