Polymer electrolyte using in situ quanternization for all solid-state dye-sensitized solar cells

Polymer electrolyte through in situ quanternization reaction by oligo-siloxane containing quanternary ammonium groups was synthesized for all solid-state dye-sensitized solar cells (DSSCs). These two latent crosslinked precursors are oligo-organosiloxane grafting oligo-ethylene oxide and propylene oxide dimethylamine (OEA) and the oligo-organosiloxane grafting oligo-ethylene oxide and propylene oxide bromide (OEB). This chemically crosslinked electrolyte shows good ambient conductivity of 2.6 x 10(-4)S/cm when incorporating appropriate amount of 1-iodide oligo-ethylene glycol monomethylether (IOEGMME) as an additive. Photoelectrochemical performances for different electrolytes were also analyzed. Copyright (C) 2009 John Wiley & Sons, Ltd.