Efficient ternary organic solar cells with high absorption coefficient DIB-SQ as the third component Project supported by the National Natural Science Foundation of China (Grant Nos. 61675017, 61377029, and 61705161) and the National Training Program of Innovation and Entrepreneurship for Undergraduates, China (Grant No. 170170010). |
(color online) (a) Chemical structures of used materials and the schematic diagram of device structure, and (b) energy level diagram of used materials and the arrows represent charge transport direction. |