Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 19, Issue 2, Pages 488-492Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2012.09.005
Keywords
Dye-sensitized solar cells; Dye adsorption; Ultrasonication
Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology [2012-0003933]
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The dye adsorption process for dye-sensitized solar cells (DSSCs) is the most rate limiting step, usually consuming up to 24 h depending on the film thickness and particle size. In this study, we propose a simple and effective method to reduce the dye adsorption time using a general bath-type ultrasonic device. Applying the ultrasonication method, the dye adsorption time was much reduced compared to the conventional dipping method for the full uptake of dye molecules. For further studies, the sole effect of solution temperature on the dye adsorption was also investigated due to the solution temperature increase during the ultrasonication process. The UV and IR absorbance analyses were performed to detect the possible structural changes of dye molecules during the ultrasonication process. (c) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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