1D Chiral Lead Bromide Perovskite with Superior Second‐Order Optical Nonlinearity, Photoluminescence, and High‐Temperature Reversible Phase Transition. - Peng, Xin‐Lin; Han, Rui‐Rui; Tang, Yun‐Zhi; Tan, Yu‐Hui; Fan, Xiao‐Wei; Wang, Fang‐Xin; Zhang, Hao (Chemistry - An Asian Journal, 2023)