Chiral All-Inorganic Perovskite Subnanowires

• DOI: 10.1021/jacs.5c04134
• Publication Date: 2025-03-27T04:57:00Z
• Authors: Gaoyu Chen; Kunhong Zhou; Qingda Liu; Junli Liu; Xiangxing Xu; Wenxiong Shi; Jinzhou Jiang; Xinwen Zhang; Lizhu Dong; Linghai Xie; Xiaoyu Zhang; Niuniu Zhang; Dongdong Xu; Jianchun Bao; Xun Wang

The phenomenon of chiral symmetry breaking during the crystallization achiral molecules or ions, which leads to formation controllable enantiomerically pure crystals, has garnered significant interest but remains a challenge fully overcome. This presents particularly formidable obstacle in creation three-dimensional (3D) structured all-inorganic perovskites, further complicated by their crystalline space groups. In this report, we successfully synthesized right- left-handed (P/M) 3D P/M-CsPbX3 (X = Cl, Cl–Br, Br, Br–I) perovskite subnanowires (SNWs), Pb(II) can be partially substituted hetero such as Cu(II), Sn(II), and Mn(II). selective control SNW handedness was achieved through strategic incorporation trace amine enantiomers. chiroptical activity arises from helical structure SNWs. mechanisms underlying were systematically investigated interpreted using thermodynamic model. We utilized P/M-CsPbBr3 SNWs fabricate circularly polarized light (CPL) photodetectors, exhibited an impressive photocurrent dissymmetry factor (gIph) 0.75. field spin light-emitting diodes (spin-LEDs), electroluminescence (CPEL) accomplished employing dual-functional material that provides both chiral-induced selectivity (CISS) CPL emission capabilities.