 The use of a ternary donor alloy strategy was employed to optimize the energy levels of the charged transfer states and organic solar cells, resulting in a significant reduction of the energy loss associated with charged generation. This optimization led to an increase in both the open circuit voltage and the power conversion efficiency of the organic solar cell, while maintaining its short circuit current density and fill factor. This article was authored by Genoa Gao, Na Yu, Ji Hao Chen, and others.