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Single-nanowire Si solar cells

Kelzenberg, M. D. and Turner-Evans, D. B. and Kayes, B. M. and Filler, M. A. and Putnam, M. C. and Lewis, N. S. and Atwater, H. A. (2008) Single-nanowire Si solar cells. In: 33rd IEEE Photovolatic Specialists Conference. IEEE , Piscataway, NJ. ISBN 978-1-4244-1640-0. https://resolver.caltech.edu/CaltechAUTHORS:20170410-172724395

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Abstract

Solar cells based on arrays of CVD-grown Si nano- or micro-wires are being considered as a potentially low-cost route to implementing a vertical multijunction cell design via radial p-n junctions. This geometry has been predicted to enable efficiencies competitive with planar multicrystalline Si designs, while reducing the materials and processing costs of solar cell fabrication [1]. To further assess the potential efficiency of cells based on this design, we present here experimental measurements of minority carrier diffusion lengths and surface recombination rates within nanowires via fabrication and characterization of single-wire solar cell devices. Furthermore, we consider a potential Si wire array-based solar cell design, and present device physics modeling of single-wire photovoltaic efficiency. Based on experimentally observed diffusion lengths within our wires, we model a radial junction wire solar cell capable of 17% photovoltaic energy conversion efficiency.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1109/PVSC.2008.4922736DOIArticle
ORCID:
AuthorORCID
Kelzenberg, M. D.0000-0002-6249-2827
Filler, M. A.0000-0003-4239-8558
Lewis, N. S.0000-0001-5245-0538
Atwater, H. A.0000-0001-9435-0201
Additional Information:© 2008 IEEE. This work was supported by BP, the Department of Energy, Office of Basic Energy Sciences, and the Center for Science and Engineering of Materials, an NSF Materi­als Research Science and Engineering Center at Caltech.
Funders:
Funding AgencyGrant Number
BPUNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
Record Number:CaltechAUTHORS:20170410-172724395
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170410-172724395
Official Citation:M. D. Kelzenberg et al., "Single-nanowire Si solar cells," 2008 33rd IEEE Photovoltaic Specialists Conference, San Diego, CA, USA, 2008, pp. 1-6. doi: 10.1109/PVSC.2008.4922736
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:76492
Collection:CaltechAUTHORS
Deposited By: Kristin Buxton
Deposited On:11 Apr 2017 01:21
Last Modified:26 Nov 2019 20:49

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