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Proceedings Paper

Electrophoretic deposition of Cu-In composite nanoparticle thin films for fabrication of CuInSe2 solar cells
Author(s): Wei Guo; Kevin Hagedorn; Bing Liu
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Paper Abstract

Thin films of Cu-In composite nanoparticles were produced by electrophoretic deposition in colloidal suspensions. The nanoparticles were prepared with high power pulsed laser ablation in liquid solvents. The nanoparticles inherited composition (Cu/In ratio) from the target during laser ablation. The colloidal suspension was stable against agglomeration without adding additional surfactant or dispersing agent. The success of electrophoretic deposition of the nanoparticles was explained based on electrochemical interactions between the nanoparticles and the electrode. CuInSe2solar absorber layers were produced after annealing the thin films in selenium vapor under atmospheric pressure. Solar cell devices were made on Mo metal sheet and Mo-coated soda-lime glass substrates with an energy conversion efficiency of up to 3.4% under AM1.5G illumination. The results open up a new route of non-vacuum fabrication of thin film chalcopyrite solar cells on flexible substrates with minimized chemical contamination, easy compositional control, and high raw material utilization.ationDa

Paper Details

Date Published: 26 September 2011
PDF: 7 pages
Proc. SPIE 8104, Nanostructured Thin Films IV, 81040W (26 September 2011); doi: 10.1117/12.894109
Show Author Affiliations
Wei Guo, IMRA America, Inc. (United States)
Kevin Hagedorn, IMRA America, Inc. (United States)
Bing Liu, IMRA America, Inc. (United States)

Published in SPIE Proceedings Vol. 8104:
Nanostructured Thin Films IV
Raúl J. Martín-Palma; Yi-Jun Jen; Tom G. Mackay, Editor(s)

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