Non-fused ring acceptors achieving over 15.6% efficiency organic solar cell by long exciton diffusion length of alloy-like phase and vertical phase separation induced by hole transport layer

Dou Luo, Zhengyan Jiang, Wen Liang Tan, Lifu Zhang, Lanqing Li, Chengwei Shan, Christopher R. McNeill, Prashant Sonar, Baomin Xu, Aung Ko Ko Kyaw