Phase Transformation of Lead Free Cs3Cu2Cl5 Nanocrystals to CsMCl(M=Zn, Bi, Cd) Structure

Author(s)
류제현
Advisor
김상욱
Department
일반대학원 분자과학기술학과
Publisher
The Graduate School, Ajou University
Publication Year
2022-08
Language
eng
Keyword
Cs2ZnCl4Cs3BiCl6Cs3Cu2Cl5CsCdCl3cation exchangeperovskite
Alternative Abstract
Lead halide perovskite nanoparticles(NPs) have inherent limitation for application due to the Pb toxicity and instability much attempts using other metals have been conducted to overcome this. In the ternary structure of lead free perovskite NPs, general synthetic method is difficult to apply due to different reactivity of constituent ions and various crystalline structure by small difference of composition. Herein, we demonstrate the synthesis and characterization of Cu-based perovskite NPs and their cation exchange reaction. Synthesized Cs3Cu2Cl5 NPs has an orthorhombic structure and 520nm green light emission and high quantum efficiency. And add to Zn, Bi and Cd ions, through cation exchange reaction, we successfully synthesized Cs2ZnCl4, Cs3BiCl6 and CsCdCl3. It was confirmed that it was a cation exchange reaction through the change of XRD and TEM. As a reverse reaction, Cu cations were added to a Cs2ZnCl4, Cs3BiCl6 and CsCdCl3, respectively, we synthesized that CsCu2Cl3 structure.
URI
https://dspace.ajou.ac.kr/handle/2018.oak/20702
Fulltext

Appears in Collections:
Graduate School of Ajou University > Department of Molecular Science and Technology > 3. Theses(Master)
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse