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Novel perovskite solar cell with Distributed Bragg Reflector
Waqas Farooq1, Shanshan Tu2, Syed Asfandyar Ali Kazmi1
1Department of Electrical Engineering, Sarhad University of Science & IT, Peshawar, Pakistan.
Plos One
|December 9, 2021
Summary
This study models perovskite solar cells with Distributed Bragg Reflector pairs, achieving 24.38% efficiency. Lead-based perovskites show higher performance than non-toxic alternatives for enhanced solar energy extraction.
Area of Science:
- Materials Science
- Renewable Energy
- Photovoltaics
Background:
- Perovskite solar cells offer promising alternatives to traditional silicon cells.
- Enhancing energy conversion efficiency and stability remains a key research challenge.
- Distributed Bragg Reflectors (DBRs) can improve light management in solar devices.
Purpose of the Study:
- To numerically model and optimize perovskite solar cell design using DBR pairs.
- To investigate the performance of different perovskite materials (CH3NH3PbI3, CH3NH3PbBr3, CH3NH3SnI3).
- To evaluate the impact of a novel geometry with Si/SiO2 back reflector pairs.
Main Methods:
- Numerical simulation of perovskite solar cell geometry.
- Incorporation of Distributed Bragg Reflector pairs for enhanced light trapping.
- Analysis of photovoltaic parameters including open-circuit voltage, short-circuit current density, fill factor, and efficiency.
Main Results:
- The optimized structure achieved a high power conversion efficiency of 24.38%.
- Lead-based perovskite materials (CH3NH3PbI3, CH3NH3PbBr3) demonstrated superior performance compared to non-toxic CH3NH3SnI3.
- The novel geometry with Si/SiO2 back reflector pairs exhibited enhanced photovoltaic parameters.
Conclusions:
- The proposed perovskite solar cell design with DBR pairs significantly boosts energy efficiency.
- Numerical modeling provides a valuable approach for optimizing thin-film solar cell designs.
- This research contributes to developing more efficient and potentially cost-effective solar energy solutions.
