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Effect of Quantum Size on the Luminescent Properties of Quantum Dots Based on Cadmium Halcogenides
- Source :
- Bulletin of the Russian Academy of Sciences: Physics. 82:1027-1029
- Publication Year :
- 2018
- Publisher :
- Allerton Press, 2018.
-
Abstract
- The quantum size effects of colloid water-organic media synthesized nanocomposites (CdSe–CdS core–shell) in toluene solution is studied. Femtosecond fluorescence up-conversion spectroscopy is used to establish that quantum dots are characterized by a biexponential decay of luminescence kinetics: the decay times are 1.8 and 26.8 ps for nanoparticles with average sizes of 2 nm and 4.5, and 68 ps for nanoparticles with an average size of 2.9 nm.
Details
- ISSN :
- 19349432 and 10628738
- Volume :
- 82
- Database :
- OpenAIRE
- Journal :
- Bulletin of the Russian Academy of Sciences: Physics
- Accession number :
- edsair.doi...........d98d5a0752d79c368a7b05fab1c8a340
- Full Text :
- https://doi.org/10.3103/s1062873818080385