DYE SENSITIZED SOLAR CELL INCLUDING CHROMENE DYES AND A PREPARING METHOD OF THE SAME

摘要

PURPOSE: A dye-sensitized solar cell is provided to improve photoelectric efficiency by improving absorption of dye. CONSTITUTION: A dye-sensitized solar cell comprises a first electrode; a light absorption layer formed on one side of the first electrode; a second electrode arranged opposite to the first electrode; and an electrolyte filled in a space between the first and second electrode. The light absorption layer comprises a chromene-based dye represented by chemical formula 1. In chemical formula 1, each of D1, D2, D3, and D4 is an electron donor, R1 is hydrogen, oxygen, a substituted or unsubstituted C1-30 alkyl group, substituted or unsubstituted C1-30 alkoxy group, a substituted or unsubstituted C6-30 aryl group, and substituted or unsubstituted C2-30 heteroaryl group; and R2 is an electron acceptor.