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Proceedings Paper

Dye adsorption feature on titania surface and role of dye aggregation inhibitor monitored by quartz crystal microbalance (QCM)
Author(s): Ryohei Hirota; Yuhei Ogomi; Shyam S. Pandey; Shuzi Hayase
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Paper Abstract

Certified efficiency of dye-sensitized solar cells (DSC) with a cell area larger than 1 cm2 reached 11.0%, which is almost same as that of amorphous silicon type solar cells. However, the efficiency is not as high as 20-25 % of crystal silicon type solar cells. Therefore, researches to find photo-conversion systems in the area of near infrared and infrared regions are being done to increase the efficiency. It has been reported that the efficiency of DSCs is affected by dye-adsorption behaviors on titania surfaces. However, there was no report on how dyes are adsorbed on titania and the relationship between dye adsorption and solar cell efficiency. We now report the adsorption behavior of dye molecules, which are monitored by Quartz Crystal Microbalance (QCM), and discuss the role of dye aggregation inhibitors which affect seriously the solar cell efficiency.

Paper Details

Date Published: 13 September 2012
PDF: 4 pages
Proc. SPIE 8477, Organic Photovoltaics XIII, 847712 (13 September 2012); doi: 10.1117/12.929235
Show Author Affiliations
Ryohei Hirota, Kyushu Institute of Technology (Japan)
Yuhei Ogomi, Kyushu Institute of Technology (Japan)
Shyam S. Pandey, Kyushu Institute of Technology (Japan)
Shuzi Hayase, Kyushu Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 8477:
Organic Photovoltaics XIII
Zakya H. Kafafi; Christoph J. Brabec; Paul A. Lane, Editor(s)

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