All Green Solvents for Fabrication of CsPbBr3 Films for Efficient Solar Cells Guided by the Hansen Solubility Theory. Issue 6 (8th June 2020) - Cao, Xiaobing; Zhang, Guoshuai; Cai, Yifan; Jiang, Long; He, Xin; Zeng, Qingguang; Wei, Jinquan; Jia, Yi; Xing, Guichuan; Huang, Wei