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

Ellis Hanna | Zendy; Leandri Valentina | Zendy; Hagfeldt Anders | Zendy; Boschloo Gerrit | Zendy; Bergquist Jonas | Zendy; Shevchenko Denys | Zendy

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

Author(s) -

Ellis Hanna,

Leandri Valentina,

Hagfeldt Anders,

Boschloo Gerrit,

Bergquist Jonas,

Shevchenko Denys

Publication year - 2015

Publication title -

journal of mass spectrometry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.475

H-Index - 121

eISSN - 1096-9888

pISSN - 1076-5174

DOI - 10.1002/jms.3582

Subject(s) - chemistry , dye sensitized solar cell , electrolyte , mass spectrometry , dye laser , desorption , photochemistry , alkoxy group , inorganic chemistry , analytical chemistry (journal) , laser , adsorption , organic chemistry , chromatography , electrode , physics , alkyl , optics

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 TiO 2 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.

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