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Fill factor in organic solar cells.
1Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P R China.
Physical Chemistry Chemical Physics : PCCP
|May 9, 2013
Summary
Understanding the fill factor (FF) in organic solar cells is complex due to intricate, interacting factors. This review clarifies FF by examining series resistance, shunt resistance, and diode characteristics, aiding organic solar cell efficiency.
Area of Science:
- Materials Science
- Electrical Engineering
- Renewable Energy
Background:
- The fill factor (FF) is crucial for organic solar cell power conversion efficiency.
- Understanding FF is challenging due to complex interactions between influencing factors.
Purpose of the Study:
- To provide a comprehensive summary of research on FF in organic solar cells.
- To elucidate the fundamental aspects of FF from an equivalent circuit perspective.
Main Methods:
- Review of research progress on FF in organic solar cells.
- Analysis based on series resistance, shunt resistance, and diode parameters.
- Summary of the physics behind S-shaped J-V curves.
Main Results:
- Identified key factors influencing FF in organic solar cells.
- Explained the underlying physics of undesirable S-shaped J-V curves.
- Provided a fundamental understanding of FF.
Conclusions:
- A fundamental understanding of FF is essential for optimizing organic solar cell performance.
- The equivalent circuit model provides a framework for analyzing FF.
- Further research into FF factors can enhance power conversion efficiency.
