What is it about?
Fluorine doped tin oxide (FTO) transparent conductive oxide (TCO) film for dye-sensitized solar cell (DSSC) was investigated. Haze of the incident light through TCO film was easily tuned by controlling the surface morphology of FTO deposited on tin doped indium oxide (ITO) nano-particle seed layer pre-coated on a glass substrate, and the light harvest within the cell was effectively enhanced with high haze TCO film.
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Why is it important?
High haze TCO film was deposited on ITO nano-particle seed layer without declining the transmittance of the incident light through TCO film. Since the increase in haze of TCO film corresponds to the longer optical path length to enhance the light harvest within the cell, the short circuit current density was effectively enhanced to achieve high conversion efficiency. We found that haze is one of the most important parameters in tuning TCO film for DSSC.
Perspectives
TCO film with higher haze above 35 % reduced the transmittance through a thick film to decrease the short circuit current density, how to produce high haze TCO film without declining the transmittance is our next topic for DSSC.
masayuki okuya
Shizuoka Daigaku
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This page is a summary of: Fluorine doped tin oxide film with high haze and transmittance prepared for dye-sensitized solar cells, Japanese Journal of Applied Physics, July 2015, Japan Society of Applied Physics,
DOI: 10.7567/jjap.54.08kf03.
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