Rapid synthesis of cesium lead halide perovskite nanocrystals by l-lysine assisted solid-phase reaction at room temperature. Issue 56 (15th September 2020)

• Record Type: Journal Article
• Authors: Hu, Yi-Lin; Wen, Qiu-Lin; Pu, Zheng-Fen; Liu, An-Yong; Wang, Jun; Ling, Jian; Xie, Xiao-Guang; Cao, Qiu-E.
• Is Part Of: RSC advances. Volume 10:Issue 56(2020)
• Page Start: 34215
• Page End: 34224
• Publication Date: 2020-09-15
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d0ra07589b
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : By comparing three different solid-phase reactions of perovskite powder synthesized using lysine, the reaction process and properties were studied. Abstract : Nowadays, there are many ways to obtain cesium lead halide perovskite nanocrystals. In addition to the synthesis methods carried out in solution, the solid-phase synthesis was reported involving grinding and milling. In this paper, we synthesized luminescent CsPbBr3 /Cs4 PbBr6 perovskite nanocrystals (PNCs) by three solid-phase synthesis methods (grinding, knocking, stirring) using l -lysine as a ligand. This is the first attempt to use an amino acid for assisting the solid phase synthesis of perovskite and to study the difference in the products obtained by the three solid phase synthesis methods. The results show that the productivity of the solid-phase synthesis methods can be greatly improved by adding l -lysine and the perovskites obtained by the methods are more resistant to water due to the addition of l -lysine. The simplicity of the synthesis process expanded the use of solid-phase synthesis to obtain more perovskites and provided potential applications of perovskite in analytical detection and sensing in aqueous solution.