Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10142165 | Journal of Alloys and Compounds | 2019 | 23 Pages |
Abstract
Hybrid organic-inorganic perovskites are a new class of photoluminescent and low-cost nanomaterials. Chemical transformation using less-toxic elements under ambient reaction conditions has emerged as a major issue due to pressures on environment and human health. Herein, the synthesis of copper-incorporated CH3NH3Pb1-xCuxBr3 based on a ligand-assisted reprecipitation (LARP) technique has been reported. The achieved quantum dots have an average size of 8â¯nm and the existence of copper has been verified by morphological studies. The nanoscale particles exhibited strong blue luminescence upon the excitation at 370â¯nm. The replacement by Cu2+ resulted in emission evolution from 468 to 513â¯nm and the photophysical properties were discussed. This study will open a new approach to control the fluorescence of perovskite-type quantum dots, which will extend its application in different areas.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Gongxi Qiao, Zhi Zeng, Jinwei Gao, Yiping Tang, Qianming Wang,