Influence of the quantum dots bandgap and their dispersion on the loss of luminescent quanta
M.R. Kulish, V.P. Kostylyov, A.V. Sachenko and 2 more
Semiconductor Physics, Quantum Electronics & Optoelectronics · 2020
doi:10.15407/spqeo23.02.155 (opens in a new tab)
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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 and dispersion of radius. 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 and, one can find the optimal values of these parameters, for which the losses of luminescent quanta are minimal.
Abstract licence: CC BY-ND
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