Back to Search
Start Over
Environment-friendly Mn and Cu co-doped CsBr nanocrystals with doping-controlled dual-emission and chrominance.
- Source :
-
New Journal of Chemistry . 10/14/2022, Vol. 46 Issue 38, p18482-18489. 8p. - Publication Year :
- 2022
-
Abstract
- Although all-inorganic lead halide perovskite nanocrystals (NCs) have attracted great attention, the intrinsic toxicity of lead remains to be resolved. Doped CsBr NCs have recently proved to be a new promising candidate of lead-free NCs, but the low photoluminescence quantum yield (PLQY) and the difficulty in the fine modulation of chrominance are still the current challenges. Herein, environment-friendly Cu doped CsBr (Cu:CsBr) NCs were synthesized with good stability and high PLQY (∼38.8%) by using a facile one-pot colloidal synthesis approach. Moreover, for the first time, Mn was introduced into the Cu:CsBr NCs, resulting in dual-emission from Cu and Mn dopants. By controlling the doping amounts of Mn, the co-doped CsBr NCs with flexibly controlled two emission peak intensities and chrominance could be realized. The current co-doping method can not only realize fine modulation of chrominance but also avoid the instability induced by mixed halide. Finally, as-synthesized NCs can be employed as an efficient color conversion layer for fabricating phosphor-converted LEDs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 11440546
- Volume :
- 46
- Issue :
- 38
- Database :
- Academic Search Index
- Journal :
- New Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 159477770
- Full Text :
- https://doi.org/10.1039/d2nj03140j