Down conversion of high energy photons in anatase based TiO2 solar cells

被引:1
作者
Kim, HJ [1 ]
Song, JS [1 ]
Koo, BK [1 ]
Lee, DY [1 ]
Lee, WJ [1 ]
Koh, JH [1 ]
机构
[1] Korea Electrotechnol Res Inst, Elect & Magnet Devices Res Grp, Chang Won 641120, Gyeongnam, South Korea
来源
DEVICE AND PROCESS TECHNOLOGIES FOR MEMS, MICROELECTRONICS, AND PHOTONICS III | 2004年 / 5276卷
关键词
down conversion; solar efficiency; charge carrier; dTiO(2);
D O I
10.1117/12.530167
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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 mum thickness, and 6 x 6 mm(2) active area, Pt counter electrode and I-3(-)/I-2(-) electrolyte Down conversion phosphor LiGdF4:Eu(LGF) located on the front surface of the solar cells. And we measured the photocurrent, current-voltage characteristics, and down-conversion efficiency of the down conversion system.
引用
收藏
页码:507 / 514
页数:8
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