Back to Search
Start Over
Transformation of Trap States during the Formation of Luminescent Core/Shell Nanostructures Based on Ag2S Quantum Dots.
- Source :
- Bulletin of the Russian Academy of Sciences: Physics; Jun2022, Vol. 86 Issue 6, p687-691, 5p
- Publication Year :
- 2022
-
Abstract
- Results are presented from studying regularities of photoprocesses that determine the luminescence of colloidal Ag<subscript>2</subscript>S quantum dots during the formation of SiO<subscript>2</subscript> shells. It is found that shell formation is accompanied by a significant increase in the quantum yield of recombination luminescence (up to 5 times), a less noticeable increase in the decay time of luminescence, and a sharp decrease in the concentration of one type of shallow trap states with an ionization energy of around 0.14 eV. It is concluded that localized states with a depth of 0.14 eV are centers of the nonradiative recombination of charge carriers. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10628738
- Volume :
- 86
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Bulletin of the Russian Academy of Sciences: Physics
- Publication Type :
- Academic Journal
- Accession number :
- 157791151
- Full Text :
- https://doi.org/10.3103/S1062873822060211