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Proceedings Paper

New architecture for high-efficiency polymer photovoltaic cells using solution-based titanium oxide layer
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Paper Abstract

New architectural polymer photovoltaic cells approaching 5% power conversion efficiency have been fabricated using titanium oxide (TiOx) as an optical spacer. Solar cells with a TiOx layer (deposited by a sol-gel process) between the active layer and the electron collecting aluminum electrode exhibit approximately 50% enhancement in power conversion efficiency compared to similar devices without the optical spacer. The TiOx layer increases the efficiency by modifying the spatial distribution of the light intensity inside the device, thereby creating more photogenerated charge carriers in the bulk heterojunction layer.

Paper Details

Date Published: 23 February 2006
PDF: 8 pages
Proc. SPIE 6117, Organic Photonic Materials and Devices VIII, 61170T (23 February 2006); doi: 10.1117/12.640666
Show Author Affiliations
Kwanghee Lee, Pusan National Univ. (South Korea)
Univ. of California, Santa Barbara (United States)
Jin Young Kim, Pusan National Univ. (South Korea)
Univ. of California, Santa Barbara (United States)
Alan J. Heeger, Univ. of California, Santa Barbara (United States)


Published in SPIE Proceedings Vol. 6117:
Organic Photonic Materials and Devices VIII
James G. Grote; Francois Kajzar; Nakjoong Kim, Editor(s)

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