Numerical optimization and performance evaluation of ZnPC:PC70BM based dye-sensitized solar cell

Area of Science:

• Materials Science
• Renewable Energy
• Photovoltaics

Background:

• Growing global energy demand and environmental concerns necessitate advanced alternative energy solutions.
• Solar cells, particularly dye-sensitized solar cells (DSSCs), are crucial for harnessing photon energy efficiently.
• Developing cost-effective, low-loss solar cells is a key research focus.

Purpose of the Study:

• To fabricate and evaluate the performance of a zinc phthalocyanine (ZnPC):PC70BM-based dye-sensitized solar cell (DSSC).
• To investigate the impact of various parameters on DSSC performance using simulation.
• To identify optimal conditions for enhanced light energy capture and conversion efficiency.

Main Methods:

• Fabrication of a ZnPC:PC70BM-based DSSC.
• Performance estimation using a solar cell capacitance simulator (SCAPS-1D).
• Analysis of parameters including photoactive layer thickness, series resistance, shunt resistance, and back-metal work function.

Main Results:

• Optimal device performance is achieved with moderate photoactive layer thickness, minimal series resistance, high shunt resistance, and high metal-work function.
• These conditions minimize recombination and electrical losses, facilitating better charge carrier transport.
• The optimized DSSC achieved a maximum power conversion efficiency of 10.30%.

Conclusions:

• The study provides a realistic strategy for improving DSSC performance by optimizing key structural and electrical parameters.
• Understanding the influence of factors like thickness, defect density, and doping density is vital for efficient DSSC utilization.
• The findings contribute to the advancement of cost-effective and high-performance solar cell technologies.