Quasi‐solid state dye‐sensitized solar cells based on the cross‐linked poly(ethylene glycol) electrolyte with tetraethoxysilane

Abstract

AbstractThe cross‐linked poly(ethylene glycol) (PEG‐1000) was prepared by condensation reaction with tetraethoxysilane (TEOS). Using the cross‐linked PEG‐1000 as polymer host, 0.60 M KI and 0.06 M I2 as ionic conductors, an ionic conductivity of the polymer electrolyte was achieved 3.12 mS cm−1. Based on the optimized cross‐linked PEG electrolyte, the best result of the quasi‐solid state dye‐sensitized solar cell (QS‐DSSC) was the short‐circuit photocurrent of 11.87 mA cm−2, the open‐circuit photovoltage of 706 mV, the fill factor of 0.593 and the light‐to‐electricity conversion efficiency of 4.97% at 100 mW cm−2 (AM 1.5). © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011