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Design improvements for the polyhedral specular reflector spectrum-splitting module for ultra-high efficiency >50%

Eisler, Carissa N. and Warmann, Emily C. and Flowers, Cristofer A. and Dee, Michelle and Kosten, Emily D. and Atwater, Harry A. (2014) Design improvements for the polyhedral specular reflector spectrum-splitting module for ultra-high efficiency >50%. In: IEEE 40th Photovoltaic Specialist Conference (PVSC). IEEE , Piscataway, NJ, pp. 2224-2229. ISBN 978-1-4799-4398-2 . http://resolver.caltech.edu/CaltechAUTHORS:20170123-164413958

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Abstract

A spectrum-splitting module design, the polyhedral specular reflector (PSR), is proposed for ultra-high photovoltaic efficiency (>50%). Incident light is mildly concentrated (≤16 suns) and subsequently split seven ways by a series of multilayer dielectric filters. The split spectrum is directed into compound parabolic concentrators (CPCs) and each concentrates a given slice of the spectrum onto one of seven subcells for conversion. We have recently made significant improvements to the design, such as vertically stacking each submodule and rearranging the subcell order to increase the optical efficiency of the design. We optimize the concentration and composition of the parallelepiped prism (hollow vs. solid) and model designs with >50% module efficiencies including optical and cell nonidealities.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/PVSC.2014.6925367DOIArticle
http://ieeexplore.ieee.org/document/6925367/PublisherArticle
ORCID:
AuthorORCID
Eisler, Carissa N.0000-0002-5755-5280
Flowers, Cristofer A.0000-0001-7864-3629
Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2014 IEEE. The authors would like to acknowledge Sunita Darbe and John Lloyd for their support. This project was supported by Dow Chemical Company through the Full Spectrum Project and the Advanced Research Projects Agency-Energy (ARPA-E), U.S. Department of Energy, under Award Number DE-AR0000333. C. N. Eisler was supported by the Department of Defense (DoD) through the National Defense Science & Engineering Graduate Fellowship (NDSEG) Program.
Funders:
Funding AgencyGrant Number
Dow Chemical CompanyUNSPECIFIED
Advanced Research Projects Agency-Energy (ARPA-E)UNSPECIFIED
Department of Energy (DOE)DE-AR0000333
National Defense Science and Engineering Graduate (NDSEG) FellowshipUNSPECIFIED
Subject Keywords:spectrum-splitting, concentrating, III-V compound semiconductor, ray tracing
Record Number:CaltechAUTHORS:20170123-164413958
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20170123-164413958
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:73639
Collection:CaltechAUTHORS
Deposited By: Kristin Buxton
Deposited On:26 Jan 2017 20:10
Last Modified:11 Apr 2017 19:28

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