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http://dx.doi.org/10.4313/JKEM.2012.25.4.315

Electrochemical Characteristics of TiO2 Photoelectrode for DSSC Prepared by Sol-gel Method  

Park, A-Reum (Department of Electrical Engineering, Chonnam National University)
Jin, En Mei (Department of Electrical Engineering, Chonnam National University)
Gu, Hal-Bon (Department of Electrical Engineering, Chonnam National University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.25, no.4, 2012 , pp. 315-320 More about this Journal
Abstract
In general, a photoelectrode in DSSC(dye sensitized solar cell) are fabricated by using the $TiO_2$ (Titanium dioxide) to realize high efficiency and the efficiency of DSSC is affected by the size, the shape and the property of $TiO_2$. We synthesized the crystalline $TiO_2$ by sol-gel method. In spite of many merits, only weakness for the sol-gel method is taking many process times. To solve this problem, we reduced the fabricating processes. The reduced process is the making process that is $TiO_2$ sol to $TiO_2$ powder with including of two heat treatment and two mixing. We could simplify the process by preparing $TiO_2$ sol to $TiO_2$ paste directly. As a result, DSSC fabrication process is simplified and we have obtained the efficiency best result 3.88% with $V_{OC}$=0.71 V, $J_{SC}=8.70\;mA/cm^{-2}$, and FF=62.37%, respectively.
Keywords
DSSC; $TiO_2$; Sol-gel;
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