Heteroepitaxial Film Silicon Solar Cell Grown on Ni-W Foils

Wee, S H; Cantoni, C; Fanning, T R; Teplin, C W; Bogorin, D F; Bornstein, J; Bowers, K; Schroeter, P; Hasoon, F; Branz, H M; Paranthaman, M P; Goyal, A

doi:10.1039/c2ee03350j

Heteroepitaxial Film Silicon Solar Cell Grown on Ni-W Foils

Journal Article · Thu Mar 01 04:00:00 EST 2012 · Energy & Environmental Science

DOI:https://doi.org/10.1039/c2ee03350j· OSTI ID:1039096

Wee, S H; Cantoni, C; Fanning, T R; Teplin, C W; Bogorin, D F; Bornstein, J; Bowers, K; Schroeter, P; Hasoon, F; Branz, H M; Paranthaman, M P; Goyal, A

Heteroepitaxial semiconductor films on low-cost, flexible metal foil templates are a potential route to inexpensive, high-efficiency solar cells. Here, we report epitaxial growth of Si films on low-cost, flexible, biaxially-textured Ni-W substrates. A robust buffer architecture comprised of multiple epitaxial oxide layers has been developed to grow high quality, heteroepitaxial Si films without any undesired reaction between the Si film and the metal substrate and with a single biaxial texture. XRD analysis including {omega}-scans, {phi}-scans, and pole figures confirms that the buffers and silicon are all epitaxial, with excellent cube-on-cube epitaxy. A photo-conversion efficiency of 1.1% is demonstrated from a proof-of-concept heteroepitaxial film Si solar cell.

Research Organization:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy Solar Energy Technologies Program

DOE Contract Number:: AC36-08GO28308

OSTI ID:: 1039096

Report Number(s):: NREL/JA-5200-54741

Journal Information:: Energy & Environmental Science, Journal Name: Energy & Environmental Science Journal Issue: 3 Vol. 5; ISSN 1754-5692

Country of Publication:: United States

Language:: English

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14 SOLAR ENERGY
36 MATERIALS SCIENCE
ARCHITECTURE
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SOLAR CELLS
SUBSTRATES
TEXTURE
X-RAY DIFFRACTION
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Heteroepitaxial Film Silicon Solar Cell Grown on Ni-W Foils

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