Using Solar Simulator light-dependent-techniques to analyze bi-molecule recombination in OPV.
Recently, L. Zhong et al. demonstrate highly efficient ternary norfullerene OPV with two polymer donors and an organic acceptor. The results indicate that adding proper amount (20%) PTB7-Th polymer in the polymer donor could effectively improve in the ternary OPVs.
To illustrate the increasing of is due to the suppression of bimolecular recombination by PTB7-Th, they ...