Counter electrode for dye-sensitized solar cell and preparation method thereof

摘要

The present invention relates to a counter electrode for DSSC which includes a porous membrane include a carbon-based material calcinated at high temperature and a platinum nano-particles and maintains higher conductivity than a thin membrane and in which the electrolyte moves smoothly, a method of preparing the same, and a DSSC using the same which is improved in photoelectric efficiency.

主权项

1. A method of preparing a counter electrode for dye-sensitized solar cell (DSSC), including the steps of:
preparing substrate A including a first substrate which has high temperature resistance and is not deformed at the temperature of 500° C. or less, a porous membrane including a carbon-based material and platinum nano-particles, an adhesive layer, and a second substrate; and preparing substrate B including the second substrate, and the adhesive layer and the porous membrane formed on the second substrate, by separating the first substrate having high temperature resistance from substrate A and transferring the porous membrane and the adhesive layer to the second substrate with a transfer method, wherein the carbon-based material is at least one selected from the group consisting of active carbon, graphite, carbon black, and graphene, the particle sizes of the carbon-based material and the platinum nano-particle are 10nm to 100 μ m, respectively, and wherein the step of preparing substrate A includes the steps of:
forming the porous membrane including the carbon-based material and the platinum nano-particles on one face of the first substrate having high temperature resistance, andstacking the adhesive layer and the second substrate on the porous membrane including the carbon-based material and the platinum nano-particles in order, and heat-pressing the substrate A.