PROCESS FOR THE PREPARATION OF DYE ABSORBED TIO2 MICROPOWDER INK AND METHOD FOR PRODUCING DYE SENSITIZED SOLAR CELL BY ROLL TO ROLL PRINTING PROCESS USING SAME

摘要

PURPOSE: A process for preparing dye-absorbed TiO2 micropowder ink is provided to prepare dye-absorbed TiO2 micropowder ink for preparing a dye sensitized solar cell through pre-heat treatment and pre-absorption methods. CONSTITUTION: A process for preparing dye-absorbed TiO2 micropowder ink comprises the steps of: (i) obtaining TiO2 fine powder by preparing TiO2 paste using TiO2 nanosol, heat-treating the paste, and activating the paste using a ball mill; (ii) preparing dye-absorbed TiO2 fine powder by dissolving the TiO2 fine powder in an organic solvent in which N3 or ruthenium-based dyes or Zn porphyrin dyes and performing centrifuging after adsorption; and (iii) preparing TiO2 fine powder ink by mixing the dye-absorbed TiO2 fine powder with a polymer.