Laser desorption/ionization mass spectrometry of dye-sensitized solar cells: identification of the dye-electrolyte interaction
2015 (English)In: Journal of Mass Spectrometry, ISSN 1076-5174, E-ISSN 1096-9888, Vol. 50, no 5, 734-739 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2015. Vol. 50, no 5, 734-739 p.
laser desorption/ionization mass spectrometry, dye-sensitized solar cells, aqueous electrolytes, cyanoacrylic acid-based dyes, polyether chains
Research subject Chemistry with specialization in Physical Chemistry
IdentifiersURN: urn:nbn:se:uu:diva-229942DOI: 10.1002/jms.3582ISI: 000355618200003OAI: oai:DiVA.org:uu-229942DiVA: diva2:738436