Ternary Polymer Solar Cells with High Efficiency of 14.24% by Integrating Two Well-Complementary Nonfullerene Acceptors
Figure 1. a) Chemical structures of PBTA-PS, LA1, and 6TIC. b) Normalized absorption spectra of neat PBTA-PS, LA1, 6TIC films and normalized
photoluminescence (PL) emission spectrum of neat LA1 film. c) Energy level diagrams of PBTA-PS, LA1, and 6TIC.
Adv. Funct. Mater. 2019, 29, 1903596