Synthesis of Lead-Free Perovskite Films by Combinatorial Evaporation: Fast Processes for Screening Different Precursor Combinations - Wong, Man Kwong; Liu, Fangzhou; Kam, Chun Sing; Leung, Tik Lun; Tam, Ho Won; Djurišić, Aleksandra B; Popović, Jasminka; Li, Hangkong; Shih, Kaimin; Low, Kam-Hung; Chan, Wai Kin; Chen, Wei; et al. (Chemistry of materials, 2017)