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Increased cell efficiency in InGaAs thin film solar cells with dielectric and metal back reflectors

Aydin, Koray and Leite, Marina S. and Atwater, Harry A. (2010) Increased cell efficiency in InGaAs thin film solar cells with dielectric and metal back reflectors. In: 34th IEEE Photovoltaic Specialists Conference. IEEE Photovoltaic Specialists Conference . IEEE , New York, pp. 1087-1091. ISBN 978-1-4244-2949-3. http://resolver.caltech.edu/CaltechAUTHORS:20100816-091334419

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Abstract

Compound single junction and multijunction solar cells enable very high photovoltaic efficiencies by virtue of employing different band gap materials in seriesconnected tandem cells to access the full solar spectrum. Researchers focused on improving the electrical properties of solar cells by optimizing the material growth conditions, however relatively little work to date has been devoted to light trapping and enhanced absorption in III-V compound solar cells using back reflectors. We studied absorption enhancement in InGaAs and InGaAsP thin film solar cells by means of numerical modeling. Flat dielectric and metal back reflectors that might be introduced into the solar cell via wafer-bonding, epitaxial lift-off or deposition techniques have been shown to increase the short circuit current and the photovoltaic efficiency of solar cells.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1109/PVSC.2009.5411432 DOIArticle
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5411432PublisherArticle
ORCID:
AuthorORCID
Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2009 IEEE. This work was supported by the Department of Energy, and the Center for Science and Engineering of Materials, an NSF Materials Research Science and Engineering Center at Caltech.
Group:Kavli Nanoscience Institute
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
Record Number:CaltechAUTHORS:20100816-091334419
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20100816-091334419
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19433
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:16 Aug 2010 18:17
Last Modified:27 Sep 2017 22:35

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