학술논문
Lead-free Perovskite with Distorted [InX6]3–Octahedron Induced by Organic Cation and Enhanced PLQY by Sb Doping
Document Type
Article
Source
Inorganic Chemistry; May 2024, Vol. 63 Issue: 19 p8764-8774, 11p
Subject
Language
ISSN
00201669; 1520510X
Abstract
In-based halide perovskites have attracted a lot of attention because of their unique broadband emission properties. Herein, a series of In-based hybrid perovskites of (H2MP)2InCl7·H2O (1), (H2EP)2InCl7·H2O (2), (H2MP)2InBr7·H2O (3), and (H2EP)2InBr7·H2O (4) were synthesized under the control of halogen ions and organic cations. 1, 2, and 4exhibit obvious photoluminescence properties with peaks at 392, 442, and 652 nm, respectively. The effects of the different components on the crystal structure and photoluminescence properties are discussed by calculating the structural distortion of the [InX6]3–octahedron. The photoluminescence properties of 1and 4were significantly improved after Sb3+doping with PLQY values of 57.12 and 41.53%. Finally, a white LED was successfully fabricated with the two doped compounds coated onto the 365 nm blue LED chip.