Heteroepitaxial Cu2O thin film solar cell on metallic substrates
Abstract
Heteroepitaxial, single-crystal-like Cu2O films on inexpensive, flexible, metallic substrates can potentially be used as absorber layers for fabrication of low-cost, high-performance, non-toxic, earth-abundant solar cells. Here, we report epitaxial growth of Cu2O films on low cost, flexible, textured metallic substrates. Cu2O films were deposited on the metallic templates via pulsed laser deposition under various processing conditions to study the influence of processing parameters on the structural and electronic properties of the films. It is found that pure, epitaxial Cu2O phase without any trace of CuO phase is only formed in a limited deposition window of P(O2) - temperature. The (00l) single-oriented, highly textured, Cu2O films deposited under optimum P(O2) - temperature conditions exhibit excellent electronic properties with carrier mobility in the range of 40-60 cm2 V-1 s-1 and carrier concentration over 1016 cm-3. The power conversion efficiency of 1.65% is demonstrated from a proof-of-concept Cu2O solar cell based on epitaxial Cu2O film prepared on the textured metal substrate.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
- Univ. of Pittsburgh, PA (United States). Dept. of Mechanical Engineering and Materials Science
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division; State University of New York (SUNY), Buffalo, NY (United States). Research and Education in Energy, Environment & Water (RENEW), Department of Chemical & Biological Engineering, Department of Materials Design & Innovation, and Department of Electrical Engineering and Physics
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1352751
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scientific Reports
- Additional Journal Information:
- Journal Volume: 5; Journal Issue: 1; Journal ID: ISSN 2045-2322
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 14 SOLAR ENERGY
Citation Formats
Wee, Sung Hun, Huang, Po-Shun, Lee, Jung-Kun, and Goyal, Amit. Heteroepitaxial Cu2O thin film solar cell on metallic substrates. United States: N. p., 2015.
Web. doi:10.1038/srep16272.
Wee, Sung Hun, Huang, Po-Shun, Lee, Jung-Kun, & Goyal, Amit. Heteroepitaxial Cu2O thin film solar cell on metallic substrates. United States. https://doi.org/10.1038/srep16272
Wee, Sung Hun, Huang, Po-Shun, Lee, Jung-Kun, and Goyal, Amit. Fri .
"Heteroepitaxial Cu2O thin film solar cell on metallic substrates". United States. https://doi.org/10.1038/srep16272. https://www.osti.gov/servlets/purl/1352751.
@article{osti_1352751,
title = {Heteroepitaxial Cu2O thin film solar cell on metallic substrates},
author = {Wee, Sung Hun and Huang, Po-Shun and Lee, Jung-Kun and Goyal, Amit},
abstractNote = {Heteroepitaxial, single-crystal-like Cu2O films on inexpensive, flexible, metallic substrates can potentially be used as absorber layers for fabrication of low-cost, high-performance, non-toxic, earth-abundant solar cells. Here, we report epitaxial growth of Cu2O films on low cost, flexible, textured metallic substrates. Cu2O films were deposited on the metallic templates via pulsed laser deposition under various processing conditions to study the influence of processing parameters on the structural and electronic properties of the films. It is found that pure, epitaxial Cu2O phase without any trace of CuO phase is only formed in a limited deposition window of P(O2) - temperature. The (00l) single-oriented, highly textured, Cu2O films deposited under optimum P(O2) - temperature conditions exhibit excellent electronic properties with carrier mobility in the range of 40-60 cm2 V-1 s-1 and carrier concentration over 1016 cm-3. The power conversion efficiency of 1.65% is demonstrated from a proof-of-concept Cu2O solar cell based on epitaxial Cu2O film prepared on the textured metal substrate.},
doi = {10.1038/srep16272},
journal = {Scientific Reports},
number = 1,
volume = 5,
place = {United States},
year = {Fri Nov 06 00:00:00 EST 2015},
month = {Fri Nov 06 00:00:00 EST 2015}
}
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