Laser desorption/ionization mass spectrometry of dye-sensitized solar cells: identification of the dye-electrolyte interaction

Dye‐sensitized solar cells (DSCs) have great potential to provide sustainable electricity from sunlight. The photoanode in DSCs consists of a dye‐sensitized metal oxide film deposited on a conductive substrate. This configuration makes the photoanode a perfect sample for laser desorption/ionization...

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Bibliographic Details
Published in:Journal of mass spectrometry. 2015-05, Vol.50 (5), p.734-739
Main Authors: Ellis, Hanna, Leandri, Valentina, Hagfeldt, Anders, Boschloo, Gerrit, Bergquist, Jonas, Shevchenko, Denys
Format: Article
Language:English
Subjects:
aqueous electrolytes
Chemistry with specialization in Physical Chemistry
cyanoacrylic acid-based dyes
Desorption
dye-sensitized solar cells
Dyes
Electrolytes
Ionization
Kemi med inriktning mot fysikalisk kemi
laser desorption/ionization mass spectrometry
Lasers
Mass spectrometry
polyether chains
Solar cells
Titanium dioxide
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Summary:Dye‐sensitized solar cells (DSCs) have great potential to provide sustainable electricity from sunlight. The photoanode in DSCs consists of a dye‐sensitized metal oxide film deposited on a conductive substrate. This configuration makes the photoanode a perfect sample for laser desorption/ionization mass spectrometry (LDI‐MS). We applied LDI‐MS for the study of molecular interactions between a dye and electrolyte on the surface of a TiO2 photoanode. We found that a dye containing polyoxyethylene groups forms complexes with alkali metal cations from the electrolyte, while a dye substituted with alkoxy groups does not. Guanidinium ion forms adducts with neither of the two dyes. Copyright © 2015 John Wiley & Sons, Ltd.
ISSN:1076-5174
1096-9888
1096-9888
DOI:10.1002/jms.3582