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Role of Doping Dependent Radiative and Non-radiative Recombination in Determining the Limiting Efficiencies of Silicon Solar Cells

Yalamanchili, Sisir and Lewis, Nathan S. and Atwater, Harry A. (2018) Role of Doping Dependent Radiative and Non-radiative Recombination in Determining the Limiting Efficiencies of Silicon Solar Cells. In: 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC). IEEE , Piscataway, NJ, pp. 3223-3226. ISBN 9781538685297. http://resolver.caltech.edu/CaltechAUTHORS:20181210-140401859

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Abstract

We show that increasing the bulk doping in a silicon based solar cell can increase the fraction of photo generated carriers that recombine radiatively at open circuit condition. This increases the maximum achievable open circuit voltage (Voc) in a solar cell At higher doping levels auger recombination and band gap narrowing effects dominate leading to a reduction in Voc. Therefore radiative and non-radiative recombinations at Voc determines the optimum doping of the bulk to maximize the performance especially in thin solar cells with increased surface area due to surface texturing.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/pvsc.2018.8547758DOIArticle
ORCID:
AuthorORCID
Lewis, Nathan S.0000-0001-5245-0538
Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2018 IEEE. This material is based upon work supported in part by the National Science Foundation (NSF) and the Department of Energy (DOE) under NSF CA No. EEC-1041895. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect those of NSF or DOE. The authors would like to thank Phil Jahelka and Colton Bukowsky for productive discussions.
Funders:
Funding AgencyGrant Number
NSFEEC-1041895
Department of Energy (DOE)UNSPECIFIED
Subject Keywords:silicon, photovoltaic cells, limiting efficiency
Record Number:CaltechAUTHORS:20181210-140401859
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20181210-140401859
Official Citation:S. Yalamanchili, N. S. Lewis and H. A. Atwater, "Role of Doping Dependent Radiative and Non-radiative Recombination in Determining the Limiting Efficiencies of Silicon Solar Cells," 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC), Waikoloa Village, HI, USA, 2018, pp. 3223-3226. doi: 10.1109/PVSC.2018.8547758
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91655
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:10 Dec 2018 23:14
Last Modified:10 Dec 2018 23:14

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