Abstract
Nanostructured ZnO aggregates are synthesized via a hydrolysis route using zinc acetate dehydrate and diethylene glycol as the starting materials under carefully controlled conditions. They are employed in making a series of pastes with various ratios of the ZnO to ethyl cellulose for dye-sensitized solar cells, where the ZnO films are formed by doctor blade technique. Use of ethyl cellulose significantly reduces micro-cracks in the oxide films. The paste with 10 wt.% ethyl cellulose demonstrates a promising energy conversion efficiency of 3.68% under the AM1.5 100 mW/cm 2 illumination.
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