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|
|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|
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.