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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 10
BKCSDE 30(10)
October 20, 2009 

Photoelectric Characteristics of Nanocrystalline TiO2 Film Prepared from TiO2 Colloid Sol for Dye-Sensitized Solar Cell
Kyung Jun Hwang, Jae Wook Lee, Ho Sung Yoon, Hee Dong Jang, Jin Geol Kim, Jin Suk Yang, Seung Joon Yoo*
Dye-sensitized solar cell, TiO2 colloidal sol, Aging
A working electrode in dye-sensitized solar cells was fabricated using TiO2 colloidal sol prepared from titanium isopropoxide used as a starting material by applying the sol-gel method. The effect of aging times and temperatures on physical and chemical properties of TiO2 sol particles was systematically investigated. Results showed that the crystallinity and average particle size of TiO2 colloidal sol can be successfully controlled by the adjustment of aging time and temperature. The conversion efficiency of the repetitive dry coating films fabricated using the dried TiO2 colloidal sol particles and hydroxypropyl cellulose binder (15%) was 10.31% with a high transparency.
2365 - 2370
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