Chang Li, Wei Li, Xiaoxiang Sun, Jifei Wang, Jiayou Tao, Zhijun Zou, Gaohua Liao, Xinchang Zou, Jian Ni, Jianjun Zhang
As a fullerene derivative, IC70 BA is widely used in the ternary organic solar cells (TOSCs) to increase the open circuit voltage (Voc ) of the devices. Unfortunately, most of the literature shows that IC70 BA will lead to a reduction in the short-circuit current density (Jsc ) and fill factor (FF). In this work, IC70 BA is added to the PTB7:PC70 BM binary system to form the ternary system, which is composed of one donor and two fullerene acceptors. Surprisingly, the addition of IC70 BA does not immediately lead to a decrease in Jsc and FF...
November 1, 2021: Journal of Nanoscience and Nanotechnology