Prediction of the Bandgap of a Core-Shell Microsphere via Light Intensity Fluctuations

It has been experimentally observed that in the case of microspheres irradiated by light, the absorption wavelength shift occurs, known as the blueshift, with changing shell materials (i.e., by decreasing the refractive index of the shell). In the present investigation, we want to demonstrate it num...

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Main Authors: Moon Kyu Choi, Youngjin Choi
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/2011/679364
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author Moon Kyu Choi
Youngjin Choi
author_facet Moon Kyu Choi
Youngjin Choi
author_sort Moon Kyu Choi
collection DOAJ
description It has been experimentally observed that in the case of microspheres irradiated by light, the absorption wavelength shift occurs, known as the blueshift, with changing shell materials (i.e., by decreasing the refractive index of the shell). In the present investigation, we want to demonstrate it numerically by using the boundary element method. The material used for the simulation is a core-shell (SiO2 and another material of a larger refractive index) microsphere and it is irradiated by unpolarized monochromatic light wave. This paper intends to demonstrate that it is possible to predict the bandgap of a core-shell microsphere resulting from two different bandgap materials and that the numerical simulation employed produces the blueshift.
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institution Kabale University
issn 1110-662X
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language English
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series International Journal of Photoenergy
spelling doaj-art-b1984422d69f4de09d45221dfcdbd0082025-02-03T01:21:49ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2011-01-01201110.1155/2011/679364679364Prediction of the Bandgap of a Core-Shell Microsphere via Light Intensity FluctuationsMoon Kyu Choi0Youngjin Choi1Department of Chemical Engineering, Hongik University, Mapo-Gu, Seoul 121-791, Republic of KoreaDepartment of Chemical Engineering, Hongik University, Mapo-Gu, Seoul 121-791, Republic of KoreaIt has been experimentally observed that in the case of microspheres irradiated by light, the absorption wavelength shift occurs, known as the blueshift, with changing shell materials (i.e., by decreasing the refractive index of the shell). In the present investigation, we want to demonstrate it numerically by using the boundary element method. The material used for the simulation is a core-shell (SiO2 and another material of a larger refractive index) microsphere and it is irradiated by unpolarized monochromatic light wave. This paper intends to demonstrate that it is possible to predict the bandgap of a core-shell microsphere resulting from two different bandgap materials and that the numerical simulation employed produces the blueshift.http://dx.doi.org/10.1155/2011/679364
spellingShingle Moon Kyu Choi
Youngjin Choi
Prediction of the Bandgap of a Core-Shell Microsphere via Light Intensity Fluctuations
International Journal of Photoenergy
title Prediction of the Bandgap of a Core-Shell Microsphere via Light Intensity Fluctuations
title_full Prediction of the Bandgap of a Core-Shell Microsphere via Light Intensity Fluctuations
title_fullStr Prediction of the Bandgap of a Core-Shell Microsphere via Light Intensity Fluctuations
title_full_unstemmed Prediction of the Bandgap of a Core-Shell Microsphere via Light Intensity Fluctuations
title_short Prediction of the Bandgap of a Core-Shell Microsphere via Light Intensity Fluctuations
title_sort prediction of the bandgap of a core shell microsphere via light intensity fluctuations
url http://dx.doi.org/10.1155/2011/679364
work_keys_str_mv AT moonkyuchoi predictionofthebandgapofacoreshellmicrospherevialightintensityfluctuations
AT youngjinchoi predictionofthebandgapofacoreshellmicrospherevialightintensityfluctuations