Conductive polymer-carbon-imidazolium composite: a simple means for constructing solid-state dye-sensitized solar...

Area of Science:

• Materials Science
• Renewable Energy
• Electrochemistry

Background:

• Solid-state dye-sensitized solar cells (ssDSSCs) offer a promising alternative to traditional photovoltaic technologies.
• Development of efficient and stable conductive materials is crucial for advancing ssDSSCs.
• Current ssDSSCs face challenges related to electrolyte stability and charge transport.

Purpose of the Study:

• To synthesize and characterize a novel clay-like conductive material for ssDSSCs.
• To evaluate the photovoltaic performance of ssDSSCs incorporating the new material.
• To explore the potential of polyaniline-loaded carbon black and imidazolium iodide in solar cell applications.

Main Methods:

• Preparation of a clay-like conductive material using polyaniline-loaded carbon black and ethyleneoxide-substituted imidazolium iodide.
• Fabrication of solid-state dye-sensitized solar cells by sandwiching the material between dye-coated porous TiO2 and a counter-electrode.
• Testing of solar cell performance under standard AM 1.5 irradiation conditions at different power densities.

Main Results:

• The synthesized material exhibited conductive properties suitable for ssDSSCs.
• The fabricated ssDSSCs demonstrated overall power conversion efficiencies of 3.48% (100 mW cm(-2)) and 4.07% (23 mW cm(-2)).
• The results indicate the material's effectiveness in facilitating charge transport and collection within the solar cell.

Conclusions:

• The novel clay-like conductive material shows promise for application in solid-state dye-sensitized solar cells.
• The achieved efficiencies highlight the potential of combining polyaniline, carbon black, and specific ionic liquids for enhanced photovoltaic performance.
• Further research can focus on optimizing material composition and device architecture for higher efficiencies.