Dye adsorption feature on titania surface and role of dye aggregation inhibitor monitored by quartz crystal microbalance (QCM)

Ryohei Hirota; Yuhei Ogomi; Shyam S. Pandey; Shuzi Hayase

doi:10.1117/12.929235

13 September 2012 Dye adsorption feature on titania surface and role of dye aggregation inhibitor monitored by quartz crystal microbalance (QCM)

Ryohei Hirota, Yuhei Ogomi, Shyam S. Pandey, Shuzi Hayase

Author Affiliations +

Proceedings Volume 8477, Organic Photovoltaics XIII; 847712 (2012) https://doi.org/10.1117/12.929235
Event: SPIE Organic Photonics + Electronics, 2012, San Diego, California, United States

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.

Citation Download Citation

Ryohei Hirota, Yuhei Ogomi, Shyam S. Pandey, and Shuzi Hayase "Dye adsorption feature on titania surface and role of dye aggregation inhibitor monitored by quartz crystal microbalance (QCM)", Proc. SPIE 8477, Organic Photovoltaics XIII, 847712 (13 September 2012); https://doi.org/10.1117/12.929235

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