Durable Unsymmetrical Zinc Phthalocyanine for Near IR Sensitization of Nanocrystalline TiO2 Films with Non-Volatile Redox Electrolytes |
| Journal |
Journal of Nano Research (Volume 2) |
| Volume |
Journal of Nano Research Vol. 2 |
| Edited by |
|
| Pages |
39-48 |
| DOI |
10.4028/www.scientific.net/JNanoR.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 Cells, Transmission Electron Microscopy (TEM), Unsymmetrical Zinc Phthalocyanine |
| 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. |
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