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Molecular Beam Epitaxy of Cu_2O Heterostructures for Photovoltaics

Tolstova, Yulia and Wilson, Samantha S. and Omelchenko, Stefan T. and Lewis, Nathan S. and Atwater, Harry A. (2015) Molecular Beam Epitaxy of Cu_2O Heterostructures for Photovoltaics. In: IEEE 42nd Photovoltaic Specialist Conference (PVSC). IEEE , Piscataway, NJ, pp. 1-4. https://resolver.caltech.edu/CaltechAUTHORS:20151223-114554576

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Abstract

Cu_2O is a p-type semiconductor that has demonstrated attractive photovoltaic properties, but its efficiencies have been limited by surface instability and lack of high quality thin films. In this work, plasma-assisted molecular beam epitaxy is used to precisely control film orientation and interface chemistry of Cu_2O heterostructures. Thin films of Cu_2O are deposited by MBE onto thin films of Pt and Au sputtered on MgO single crystal substrates. This heterostructure configuration provides a path for an all-epitaxial thin film Cu_2O solar cell, which can serve as a top cell in a tandem structure with a crystalline Si bottom cell.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1109/PVSC.2015.7355913 DOIArticle
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7355913PublisherArticle
ORCID:
AuthorORCID
Omelchenko, Stefan T.0000-0003-1104-9291
Lewis, Nathan S.0000-0001-5245-0538
Atwater, Harry A.0000-0001-9435-0201
Alternate Title:Molecular Beam Epitaxy of Cu2O Heterostructures for Photovoltaics
Additional Information:© 2015 IEEE. The authors gratefully acknowledge support from the Dow Chemical Company under the earth abundant semiconductor project.
Group:JCAP
Funders:
Funding AgencyGrant Number
Dow Chemical CompanyUNSPECIFIED
Subject Keywords:Cuprous oxide, molecular beam epitaxy, heteroepitaxy, photovoltaic
Record Number:CaltechAUTHORS:20151223-114554576
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20151223-114554576
Official Citation:Tolstova, Yulia; Wilson, Samantha S.; Omelchenko, Stefan T.; Lewis, Nathan S.; Atwater, Harry A., "Molecular Beam Epitaxy of Cu2O Heterostructures for Photovoltaics," in Photovoltaic Specialist Conference (PVSC), 2015 IEEE 42nd , vol., no., pp.1-4, 14-19 June 2015 doi: 10.1109/PVSC.2015.7355913
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:63186
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:23 Dec 2015 20:23
Last Modified:03 Oct 2019 09:26

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