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Proceedings Paper

Characterization of N3 dye Adsorption on TiO2 using quartz-crystal microbalance with dissipation monitoring
Author(s): Hannah K. Wayment-Steele; Lewis E. Johnson; Matthew C. Dixon; Malkiat S. Johal
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Paper Abstract

Understanding the kinetics of dye adsorption on semiconductors is crucial for designing dye-sensitized solar cells (DSSCs) with enhanced efficiency. Harms et al. recently applied the Quartz-Crystal Microbalance with Dissipation Monitoring (QCM-D) to study in situ dye adsorption on flat TiO2 surfaces. QCM-D measures adsorption in real time and therefore allows one to determine the kinetics of the process. In this work, we characterize the adsorption of N3, a commercial RuBipy dye, using the native oxide layer of a titanium sensor to simulate the TiO2 substrate of a DSSC. We report equilibrium constants that are in agreement with previous absorbance studies of N3 adsorption, and therefore demonstrate the native oxide layer of a titanium sensor as a valid and readily available planar TiO2 morphology to study dye adsorption.

Paper Details

Date Published: 11 September 2013
PDF: 9 pages
Proc. SPIE 8823, Thin Film Solar Technology V, 882309 (11 September 2013); doi: 10.1117/12.2023654
Show Author Affiliations
Hannah K. Wayment-Steele, Pomona College (United States)
Lewis E. Johnson, Pomona College (United States)
Matthew C. Dixon, Biolin Scientific (United States)
Malkiat S. Johal, Pomona College (United States)

Published in SPIE Proceedings Vol. 8823:
Thin Film Solar Technology V
Louay A. Eldada; Michael J. Heben, Editor(s)

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