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Spectrum splitting photovoltaics: Materials and device parameters to achieve ultrahigh system efficiency

Warmann, Emily C. and Eisler, Carissa and Kosten, Emily and Escarra, Matthew and Atwater, Harry A. (2013) Spectrum splitting photovoltaics: Materials and device parameters to achieve ultrahigh system efficiency. In: IEEE 39th Photovoltaic Specialists Conference. IEEE , Piscataway, NJ, pp. 1922-1925. ISBN 978-1-4799-3299-3. https://resolver.caltech.edu/CaltechAUTHORS:20140918-132151968

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Abstract

We describe an approach for spectrum splitting solar module design using 8 independently connected subcells with optimized band gaps. Modified detailed balance calculations using parameters to account for nonideal absorption and recombination behavior are used to identify the efficiency of spectrum splitting modules with 2 to 20 subcells. Potential optical designs for solar spectrum splitting among subcells are briefly described. Spectrum splitting improves use of the power in the solar spectrum by decreasing thermalization losses. A multijunction design utilizing independently connected subcells employed in a concentrator photovoltaic receiver allows flexibility in subcell selection, fabrication and operating power point optimization when a large number of subcells are employed.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1109/PVSC.2013.6744845 DOIArticle
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6744845PublisherArticle
ORCID:
AuthorORCID
Warmann, Emily C.0000-0002-2810-4608
Eisler, Carissa0000-0002-5755-5280
Escarra, Matthew0000-0002-0232-942X
Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2013 IEEE.
Subject Keywords:spectrum spitting, concentrating photovoltaics
Record Number:CaltechAUTHORS:20140918-132151968
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140918-132151968
Official Citation:Warmann, E.C.; Eisler, C.; Kosten, E.; Escarra, M.; Atwater, H.A, "Spectrum splitting photovoltaics: Materials and device parameters to achieve ultrahigh system efficiency," Photovoltaic Specialists Conference (PVSC), 2013 IEEE 39th , vol., no., pp.1922,1925, 16-21 June 2013 doi: 10.1109/PVSC.2013.6744845 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6744845&isnumber=6744078
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49824
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Sep 2014 21:41
Last Modified:09 Mar 2020 13:19

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