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http://dx.doi.org/10.4313/JKEM.2014.27.1.33

Electrochemical Properties of Dye-sensitized Solar Cells Using the TiO2 Prepared by Hydrothermal Reaction  

Na, Byung-Hee (Department of Electrical Engineering, Chonnam National University)
Zhao, Xing Guan (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.27, no.1, 2014 , pp. 33-38 More about this Journal
Abstract
In this work, according to temperature and time of hydrothermal synthesis, the electrochemical properties of $TiO_2$ particle using TTIP based on changing temperature and time in the hydrothermal synthesis were analyzed and optimized temperature and time were derived. When hydrothermal synthesis temperature and time were $200^{\circ}C$ and 1 h, respectively. The fabricated DSSC delivered the best electrochemical properties. In that case, $TiO_2$ particle size was 13.08 nm, electron transport time was $2.34{\times}10^{-3}s$ and recombination time was $4.01{\times}10^{-2}s$. The lowest impedance of $13.52{\Omega}$ and Voc, Jsc, FF is 0.70 V, $1.50mAcm^{-2}$, 65.62%, respectively and corresponding efficiency of 5.34% was considered as the optimal.
Keywords
Dye-sensitized solar cells; Hydrothermal method; Anatase $TiO_2$; Solar conversion efficiency;
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