Role of micro and nanostructures in enhancing near IR optical absorption in Silicon
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Institute of Electrical and Electronics Engineers Inc.
2016
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my.unimap-411762016-03-22T01:36:49Z Role of micro and nanostructures in enhancing near IR optical absorption in Silicon Cheow Siu, Leong Ayu Wazira, Azhari Kamaruzzaman, Sopian Saleem Hussain, Zaidi ayuwazira@unimap.edu.my IR transmission Light trapping Randomly textured micro and nanostructures Solar cells Link to publisher's homepage at http://ieeexplore.ieee.org Role of micro and nanostructures in enhancing IR transmission in Si wafers has been investigated. Based on feature dimensions, incident light interaction can be described in terms of: (a) geometrical optics for wavelengths significantly smaller than surface dimensions, (b) diffractive optics for wavelengths comparable to surface features, and (c) physical optics for wavelengths substantially larger than surface features. Randomly distributed features in micro and nanoscale regimes were fabricated on identical Si wafers. A simple IR optical transmission system based on InGaAs photodetector and monochromator was developed for optical measurements. Optical transmission near the bandgap was substantially reduced by randomly distributed nanostructures likely attributed to diffractive optics. At the conference, details of several structures along with their reflection and transmission measurements will be presented in order to determine optimum surfaces for lowest transmission near the bandgap. 2016-03-22T01:34:29Z 2016-03-22T01:34:29Z 2014-10-15 Article 2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014 978-147994398-2 http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41176 10.1109/PVSC.2014.6925133 en Photovoltaic Specialist Conference; Institute of Electrical and Electronics Engineers Inc. |
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IR transmission Light trapping Randomly textured micro and nanostructures Solar cells |
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IR transmission Light trapping Randomly textured micro and nanostructures Solar cells Cheow Siu, Leong Ayu Wazira, Azhari Kamaruzzaman, Sopian Saleem Hussain, Zaidi Role of micro and nanostructures in enhancing near IR optical absorption in Silicon |
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Link to publisher's homepage at http://ieeexplore.ieee.org |
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ayuwazira@unimap.edu.my |
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ayuwazira@unimap.edu.my Cheow Siu, Leong Ayu Wazira, Azhari Kamaruzzaman, Sopian Saleem Hussain, Zaidi |
format |
Article |
author |
Cheow Siu, Leong Ayu Wazira, Azhari Kamaruzzaman, Sopian Saleem Hussain, Zaidi |
author_sort |
Cheow Siu, Leong |
title |
Role of micro and nanostructures in enhancing near IR optical absorption in Silicon |
title_short |
Role of micro and nanostructures in enhancing near IR optical absorption in Silicon |
title_full |
Role of micro and nanostructures in enhancing near IR optical absorption in Silicon |
title_fullStr |
Role of micro and nanostructures in enhancing near IR optical absorption in Silicon |
title_full_unstemmed |
Role of micro and nanostructures in enhancing near IR optical absorption in Silicon |
title_sort |
role of micro and nanostructures in enhancing near ir optical absorption in silicon |
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Institute of Electrical and Electronics Engineers Inc. |
publishDate |
2016 |
url |
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41176 |
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1643799613368434688 |
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13.211869 |