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A Study on the Characteristics of $TiO_2$ thin Film in Dye-sensitized Solar Cells using Electrospray Method  

Kim, Hee-Je (부산대학 전자전기공학과)
Lee, Jeong-Gee (부산대학 전자전기공학과)
Hong, Ji-Tae (부산대학 전자전기공학과)
Kim, Ho-Sung (부산대학 전자전기공학과)
Lee, Dong-Gil (부산대학 전자전기공학과)
Hur, Kook-Sung (부산대학 전자전기공학과)
An, Tae-Pung (인텍전기전자(주))
Jang, Jin-Ju (부산대학 전자전기공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.58, no.11, 2009 , pp. 2223-2228 More about this Journal
Abstract
Dye sensitized solar cells(DSCs) have been very economical and easy method to convert solar energy to electricity. DSC can reach low costs in future outdoor power applications. However, to commercialize the DSC, there are still many shortages to overcome such a low efficiency in a large size DSC. In this study, DSCs were fabricated by an electrospray coating method for the $TiO_2$ thin film. They were compared with DSCs prepared by conventional coating methods. We conducted an experiment to obtain the optimized parameters of voltage, flow rate, incident angle and distance in the electrospray method. After we fabricated $TiO_2$ film using that way, we investigated the characteristics of DSC through I-V Curve, SEM and EIS. This novel method shows stable performance with an energy conversion efficiency of 3.44 % under 1 sun illumination (AM 1, $P_{in}$ of $100\;mW/cm^2$).
Keywords
Electrospray; Dye sensitized solar cells(DSCs); $TiO_2$ thin film; DC-DC converter;
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