Synthesis, Composition, Photoluminescence, and Stability of Properties of Colloidal InSb-Based Quantum Dots

Synthesis, Composition, Photoluminescence, and Stability of Properties of Colloidal InSb-Based Quantum Dots

Colloidal InSb-based quantum dots (QDs) without shells and with InP, CdS, InP/CdS, and InP(Cd)/CdS shells were synthesized and studied. The best characteristics of photoluminescence and its stability were obtained for InSb core/shell QDs with InP(Cd)/CdS two-layer shell. The obtained results are exp...

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Veröffentlicht in:Technical physics letters 2019-08, Vol.45 (8), p.801-804
Hauptverfasser: Krylsky, D. V., Zhukov, N. D.
Format: Artikel
Sprache:eng
Schlagworte:
Cadmium sulfide
CADMIUM SULFIDES
Classical and Continuum Physics
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
CONFINEMENT
ELECTRONS
Indium antimonide
INDIUM ANTIMONIDES
INDIUM PHOSPHIDES
Intermetallic compounds
PHOTOLUMINESCENCE
Physics
Physics and Astronomy
Quantum confinement
QUANTUM DOTS
RECOMBINATION
Shell stability
STABILITY
SYNTHESIS
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Zusammenfassung:Colloidal InSb-based quantum dots (QDs) without shells and with InP, CdS, InP/CdS, and InP(Cd)/CdS shells were synthesized and studied. The best characteristics of photoluminescence and its stability were obtained for InSb core/shell QDs with InP(Cd)/CdS two-layer shell. The obtained results are explained in the framework of models of the excitonic recombination mechanism and the electron quantum confinement of a QD core by an isomorphous two-layer shell.
ISSN:1063-7850
1090-6533
DOI:10.1134/S106378501908025X