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- Title
Influence of the quantum dots bandgap and their dispersion on the loss of luminescent quanta.
- Authors
Kulish, M. R.; Kostylyov, V. P.; Sachenko, A. V.; Sokolovskyi, I. O.; Shkrebtii, A. I.
- Abstract
The method for estimating the loss of luminescent quanta caused by reabsorption has been proposed. The method is based on the analysis of absorption and luminescence spectra of quantum dots (QDs) with different radii r̅ and dispersion of radius Δr̅. The loss was estimated for QDs of six semiconductor materials with different bulk bandgap Eg0: CdS (Eg0 = 2.42 eV), CdSe (Eg0 = 1.74 eV), CdTe (Eg0 = 1.56 eV), InP (Eg0 = 1.34 eV), InAs (Eg0 = 0.36 eV), and PbSe (Eg0 = 0.27 eV). It has been ascertained that, by changing r̅ and Δ r̅, one can find the optimal values of these parameters, for which the losses of luminescent quanta are minimal.
- Subjects
QUANTUM dots spectra; DISPERSION (Chemistry); SEMICONDUCTOR materials; FLUORIMETRY; BULK solids; SEMICONDUCTOR quantum dots
- Publication
Semiconductor Physics, Quantum Electronics & Optoelectronics, 2020, Vol 23, Issue 2, p155
- ISSN
1560-8034
- Publication type
Article
- DOI
10.15407/spqeo23.02.155