Suitability of N-propanoic acid spiropyrans and spirooxazines for use as sensitizing dyes in dye-sensitized solar cells

This work deals with the fabrication and evaluation of color-changing dye-sensitized solar cells (DSSCs) that include N -propanoic acid-functionalized spiropyrans and spirooxazines as sensitizing dyes. We investigated the photophysical properties of these compounds in various solvents and pH conditi...

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Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2017-01, Vol.19 (4), p.2981-2989
Main Authors: Johnson, Noah M, Smolin, Yuriy Y, Hagaman, Daniel, Soroush, Masoud, Lau, Kenneth K. S, Ji, Hai-Feng
Format: Article
Language:English
Subjects:
Dyes
Infrared spectroscopy
Photovoltaic cells
Sensitizing
Solar cells
Spirooxazine
Spiropyrans
Titanium dioxide
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Summary:This work deals with the fabrication and evaluation of color-changing dye-sensitized solar cells (DSSCs) that include N -propanoic acid-functionalized spiropyrans and spirooxazines as sensitizing dyes. We investigated the photophysical properties of these compounds in various solvents and pH conditions using UV-Vis spectroscopy, and their behavior on TiO 2 photoanode surfaces using a combination of UV-Vis and FT-IR. Their performance as sensitizing dyes for DSSCs was also analyzed. This study revealed a number of unique properties for this class of compounds that affect their performance as both photochromic compounds and DSSC sensitizers, which allow for future creation of efficient photochromic DSSCs. Photochromic dye-sensitized solar cells (DSSCs) that include N -propanoic spiropyrans and spirooxazines as sensitizing dyes.
ISSN:1463-9076
1463-9084
DOI:10.1039/c6cp07853b