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Enhanced Performance of Dye Sensitized Solar Cell by the Novel Composite TiO2/POEM Photoanodes

Published online by Cambridge University Press:  23 May 2012

Chung-Te Liu ,
Ying-Chiao Wang ,
Rui-Xuan Dong ,
Kuo-Chuan Ho  and
Jiang-Jen Lin
Chung-Te Liu
Affiliation:
Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
Ying-Chiao Wang
Affiliation:
Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
Rui-Xuan Dong
Affiliation:
Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
Kuo-Chuan Ho
Affiliation:
Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
Jiang-Jen Lin
Affiliation:
Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
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Abstract

A novel polymer dispersant, poly(oxyethylene)-segment imide (POEM) in the structure was incorporated in the nanocrystalline TiO2 film as the electrode. The uses of the dispersants could disperse TiO2 by decreasing the van der waals force among the nanoparticles, observed by TEM. The resultant TiO2/POEM film as the photoanode rendered the dye-sensitized solar cell (DSSC) with enhanced performance. By comparing to the traditional photoanode composing of polyethylene glycol (PEG) dispersed TiO2, the POEM dispersed TiO2 provided large surface area and high roughness in the dye adsorbed film. Furthermore, the fabricated TiO2/POEM photoanode has a better light-scattering property which contributes to the improvement for the short-circuit current density (Jsc) and the power-conversion efficiency (_) of the DSSC to be 19.1 mA cm-2 and 8.7%, respectively. The performance is superior to 13.2 mA cm-2 and 7.34% for a DSSC with the photoanode containing TiO2/PEG.

Keywords

devicesdispersantTi
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1442: Symposium Q – Titanium Dioxide Nanomaterials—2012 , 2012 , mrss12-1442-q03-11
Copyright
Copyright © Materials Research Society 2012

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References

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