crystallinity; organic solar cells; polymer donors; power conversion efficiency; ternary blends
WILEY-V C H VERLAG GMBH
ADVANCED ENERGY MATERIALS, v. 6, NO 6, Article number 1502109, Page. 1-6
Ternary structures are demonstrated as a promising approach to increase the efficiency and light harvesting of solar cells. A high power conversion efficiency of 10.2% is achieved for ternary organic solar cells with two efficient polymer donors. The improved performance is attributed to the synergistic effects of enhanced light absorption and charge transport, efficient energy transfer, improved charge generation and morphology.