Journal
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
Volume 38, Issue 3, Pages 842-849Publisher
Optica Publishing Group
DOI: 10.1364/JOSAB.414664
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- [PGSandRD/RIG/973/2018]
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A theoretical modeling of a giant colloidal core-shell quantum dot with a strain-adapting alloyed interfacial layer between the core and shell materials for solar cell applications is proposed. The modified detailed balance model is further adjusted to obtain a more realistic conversion efficiency of the CdSe/CdSexS1-x/CdS quantum dot solar cell, considering the significant impact of the energy gap and oscillator strength. The results show that the proposed model approximates the experimental studies of similar dot structure and dimensions in terms of conversion efficiency and photoluminescence peak wavelength.
We proposed a theoretical modeling of a giant colloidal core-shell quantum dot with a strain-adapting alloyed interfacial layer between the core and shell materials for solar cell applications. The recently modified detailed balance model [J. Appl. Phys. 125, 174302 (2019)] is further modified in this paper to obtain a more realistic conversion efficiency (CE) of the CdSe/CdSexS1-x/CdS quantum dot solar cell. This proposed model computes the CE, considering the significant impact of the energy gap and oscillator strength simultaneously. The CE is investigated for different alloying factors x by considering the strain effect between the heterostructure. The results obtained in terms of CE and photoluminescence peak wavelength nearly approximate the experimental studies of similar dot structure and dimensions. (C) 2021 Optical Society of America
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