Improved performance of polymer solar cells by using inorganic, organic, and doped cathode buffer layers
Wang Taohong1, Chen Changbo1, Guo Kunping2, Chen Guo2, †, 
, Xu Tao2, 3, ‡, , Wei Bin2
, Xu Tao2, 3, ‡, , Wei Bin2 (a) Device structure of P3HT:PCBM polymer solar cell. (b) Molecular structures of P3HT, PCBM, TPBi, Bphen, and Liq. (c) Energy-level diagram of materials under investigation.
