Enhanced Photovoltaic Performance of Poly(3,4-Ethylenedioxythiophene)Poly(-Alkylcarbazole) Copolymer-Based Counter Electrode in Dye-Sensitized Solar Cells.

Conducting polymers are emerging as promising alternatives to rare and expensive platinum for counter electrodes in dye-sensitized solar cells; due to their ease of synthesis, they can be chemically tuned and are suitable for roll-to-roll production. Among these, poly (3,4-ethylenedioxythiophene) (PEDOT)-based counter electrodes have shown leading photovoltaic performance. However, certain conductivity issues remain that affect the effectiveness of these counter electrodes.