Composite substrate for counter electrode of dye-sensitized solar cell

摘要

A substrate for counter electrode of dye-sensitized solar cell is made of a composite material, which is prepared by: a) compounding vinyl ester and graphite powder to form bulk molding compound (BMC) material, the graphite powder content ranging from 60 wt % to 95 wt % based on the total weight of the graphite powder and vinyl ester, wherein 0.01-10 wt % of an electrically conductive filler, based on the weight of the vinyl ester resin, is optionally added during the compounding; b) molding the BMC material from step a) to form a substrate for the counter electrode having a desired shaped at 80-200° C. and 500-4000 psi.

主权项

1. A dye-sensitized solar cell comprising a photoanode, electrolyte, and counter electrode deposited directly on a composite substrate, wherein said composite substrate comprises a cured vinyl ester resin and a graphite powder dispersed in said cured vinyl ester resin, wherein said cured vinyl ester resin comprises 60 to 80 wt % of said graphite powder, based on the weight of said cured vinyl ester resin and particles of said graphite powder have a size of 10-80 mesh,
wherein said composite substrate further comprises 0.01-10 wt % of an electrically conductive filler, based on the weight of the vinyl ester resin, is dispersed in said cured vinyl ester resin, wherein said electrically conductive filler is CNT, and said cured vinyl ester resin further comprises 0.01-10 wt % of a polyether amine dispersant, based on the weight of the cured vinyl resin, wherein said composite substrate further comprises a metallic net being embedded in said composite substrate.