The Effect of Additive on the Performance and Phase Separation of Benzo[1,2-b:3,4-b]dithiophene-Based Polymer Heterojunction Photovoltaic Devices - Ni, Nan; Qu, Bo; Tian, Di; Cong, Zhiyuan; Weiping Wang; Chao Gao; Xiao, Lixin; Chen, Zhijian; Qihuang Gong; Wei Wei (MACROMOLECULAR CHEMISTRY AND PHYSICS, 2013)