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Proceedings Paper

Down conversion of high-energy photons in anatase-based TiO2 solar cells
Author(s): Hyun-Ju Kim; Jae-Sung S. Song; Boo-Kun Koo; Dong-Yun Lee; Won-Jae Lee; Jung-Hyuk Koh
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Paper Abstract

For improving solar efficiencies, down conversion of high-energy photons to visible lights is discussed. The losses due to thermalization of charge carriers generated by the absorption of high-energy photons, can largely be reduced in a solar cell if more than one electron-hole pair can be generated per incident photon. The solar cell consists of dye-sensitized anatase-based TiO2, approximately 30 nm particle size, 6 μm thickness, and 6 x 6 mm2 active area, Pt counter electrode and T3/T2 electrolyte. Down conversion phosphor LiGdF4:Eu(LGF) located on the front surface of the solar cells. And we measured the photo-current, current-voltage characteristics, and down-characteristics, and down-conversion efficiency of the down conversion system.

Paper Details

Date Published: 2 April 2004
PDF: 8 pages
Proc. SPIE 5276, Device and Process Technologies for MEMS, Microelectronics, and Photonics III, (2 April 2004); doi: 10.1117/12.530167
Show Author Affiliations
Hyun-Ju Kim, Korea Electrotechnology Research Institute (South Korea)
Jae-Sung S. Song, Korea Electrotechnology Research Institute (South Korea)
Boo-Kun Koo, Korea Electrotechnology Research Institute (South Korea)
Dong-Yun Lee, Korea Electrotechnology Research Institute (South Korea)
Won-Jae Lee, Korea Electrotechnology Research Institute (South Korea)
Jung-Hyuk Koh, Korea Electrotechnology Research Institute (South Korea)


Published in SPIE Proceedings Vol. 5276:
Device and Process Technologies for MEMS, Microelectronics, and Photonics III
Jung-Chih Chiao; Alex J. Hariz; David N. Jamieson; Giacinta Parish; Vijay K. Varadan, Editor(s)

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