Electrolyte formulations

摘要

The present invention relates to electrolyte formulations comprising at least one imidazolium fluorotricyanoborate or pyrrolidinium fluorotricyanoborate and their use in an electrochemical and/or optoelectronic device such as a photovoltaic cell, a light emitting device, an electrochromic or photo-electrochromic device, an electrochemical sensor and/or biosensor, preferably their use in a dye or quantum dot sensitized solar cell.

主权项

1. An electrolyte formulation comprising at least one compound of formula (I)
Kt+[BF(CN)3]−  (I) in which Kt+ is an organic cation selection from the group of where the substituents R1′ to R10′ each, independently of one another, denote H with the assumption that R1′ and R4′ are not simultaneously H and are not perfluorinated at the same time, straight-chain or branched alkyl having 1-20 C atoms, which optionally may be fluorinated or perfluorinated, straight-chain or branched alkenyl having 2-20 C atoms and one or more double bonds, which optionally may be fluorinated or perfluorinated, straight-chain or branched alkynyl having 2-20 C atoms and one or more triple bonds which optionally may be fluorinated or perfluorinated or straight-chain or branched alkoxyalkyl having 2 to 8 C atoms and wherein the anion fluorotricyanoborate is in molar concentrations from 0.1 to 5.5 M.