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http://dx.doi.org/10.4313/JKEM.2013.26.12.878

A Study on the Efficiency of Dye Sensitized Solar Cell Based on the Volume of Binder Addition  

Ki, Hyun-Chul (Photonics Fusion System Research Center, Korea Photonics Technology Institute)
Jung, Haeng-Yun (Photonics Fusion System Research Center, Korea Photonics Technology Institute)
Gu, Hal-Bon (Department of Electrical Engineering, Chonnam National University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.26, no.12, 2013 , pp. 878-881 More about this Journal
Abstract
In this study, we have fabricated the dye sensitized solar cell (DSSC) composed by a transparent conductive oxide (TCO), a nanocrystalline semiconductor film usually $TiO_2$, a sensitizer adsorbed on the surface of the semiconductor, an electrolyte containing a redox mediator and a counter electrode. The $TiO_2$ nanopowder was prepared by sol-gel methode. The HCl (hydrochloric acid) and TBAOH (Tetrabutyl amonium hydroxide) was added for improving the catalyst and distributed properties of $TiO_2$ nanopowder. Ammonium hydroixde was added in order to control the morphology and size of $TiO_2$ nano crystal. A $TiO_2$ paste for working electrode was prepared with the addition of HPC (hydroxypropyl cellulos) used as a binder of which volume was controled as 1.3, 1.5, 1.7, and 2.0%. The measured I-V curves of assembled DSSC showed that the cell with 1.7% HPC binder had the best efficiency of 6.79%.
Keywords
Dye-sensitized solar cell; Binder; Sol-gel;
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