A new class of solid state ionic conductors for application in all solid state dye sensitized solar cells.

Area of Science:

• Materials Science
• Electrochemistry
• Renewable Energy

Background:

• Solid-state dye-sensitized solar cells (ssDSSCs) require efficient ionic conductors for electrolyte performance.
• Traditional liquid electrolytes face challenges like leakage and volatility.
• Development of stable, high-performance solid electrolytes is crucial for advancing ssDSSCs.

Purpose of the Study:

• To synthesize novel solid state ionic conductors based on a carbazole-imidazolium cation structure.
• To investigate their application in solid state dye-sensitized solar cells.
• To enhance the charge transport properties and overall efficiency of ssDSSCs.

Main Methods:

• Synthesis of carbazole-imidazolium based solid state ionic conductors.
• Fabrication of solid state dye-sensitized solar cells utilizing these conductors.
• Electrochemical characterization of the electrolyte and device performance evaluation.

Main Results:

• Successfully synthesized carbazole-imidazolium based solid state ionic conductors.
• Developed solid state electrolytes incorporating these conductors and iodine.
• Achieved dual-channel transport for hole/triiodide, leading to a notable power conversion efficiency of 2.85%.

Conclusions:

• The synthesized carbazole-imidazolium based ionic conductors are promising for ssDSSCs.
• Dual-channel transport in solid state electrolytes significantly boosts device efficiency.
• Further research can optimize these materials for next-generation solar cell technologies.