Paper Title:

Durable Unsymmetrical Zinc Phthalocyanine for Near IR Sensitization of Nanocrystalline TiO2 Films with Non-Volatile Redox Electrolytes

Periodical Journal of Nano Research (Volume 2)
Main Theme Journal of Nano Research Vol. 2
Pages 39-48
DOI 10.4028/www.scientific.net/JNanoR.2.39
Citation L. Giribabu et al., 2008, Journal of Nano Research, 2, 39
Online since August, 2008
Authors L. Giribabu, C. Vijay Kumar, M. Raghavender, K. Somaiah, P. Yella Reddy, P. Venkateswara Rao
Keywords Nanocrystalline TiO2, Non-Volatile Redox Electrolyte, Solar Cell, TEM, Unsymmetrical Zinc Phthalocyanine
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Abstract

We are presenting our results based on unsymmetrical zinc phthalocyanine by adopting ‘push-pull’ concept for the nanocrystalline dye-sensitized solar cells. Using this sensitizer in combination with nonvolatile organic-solvent-based electrolytes, we obtained a photovoltaic efficiency of 1.52% under standard global AM 1.5 sunlight and compared the results with volatile organic-solvent based electrolyte. These devices exhibit admirable stability when subjected to continuous thermal stress at 60 oC for 1000 h. The sensitizer is thermally stable up to 150 oC and can be useful for roof top applications.