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Quantum dots photoinduced charges dynamics – model of crystall lattice defects

Authors :
A. V. Leontyev
Artemiy Shmelev
D. K. Zharkov
Vladimir S. Lobkov
Victor G. Nikiforov
Source :
EPJ Web of Conferences, Vol 220, p 02015 (2019)
Publication Year :
2019
Publisher :
EDP Sciences, 2019.

Abstract

We report the results of core-shell (CdSe/CdS) quantum dots study. Quantum dots sizes were evaluated as 2.0 and 2.9 nm from absorbance edge position. We suggest two types of traps, predict properties of these traps based on upconversion luminescence data and previous studies of quantum dots (CdSe cores only) and bulk CdS.

Subjects

Subjects :
010302 applied physics
Materials science
Physics
QC1-999
Upconversion luminescence
Physics::Optics
Edge (geometry)
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
01 natural sciences
Molecular physics
010309 optics
Absorbance
Condensed Matter::Materials Science
Position (vector)
Quantum dot
Lattice defects
0103 physical sciences

Details

ISSN :
2100014X
Volume :
220
Database :
OpenAIRE
Journal :
EPJ Web of Conferences
Accession number :
edsair.doi.dedup.....f35358932a344ef4f2857da7d5b8cd2d
Full Text :
https://doi.org/10.1051/epjconf/201922002015
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