Synthesis, investigation of the properties and evaluation the stability of the mix halogen perovskite (Cl, Br, I) and fabrication of perovskite solar cells - Ho, Thi Thanh Nguyen; Tran, Minh Hien; Huynh Le Thanh, Nguyen; Le, Viet Hai; Nguyen, Thai Hoang (VNUHCM Journal of Advanced Research in Natural Sciences, 2022)