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Defect Engineering at Buried Interface of Perovskite Solar Cells
Mohamad Firdaus Mohamad Noh1, Nurul Affiqah Arzaee1, Muhammad Najib Harif2
1Institute of Sustainable Energy (ISE), Universiti Tenaga Nasional (UNITEN), Jalan IKRAM-UNITEN, Kajang, Selangor, 43000, Malaysia.
Small Methods
|July 20, 2024
Summary
Physical and chemical defects at the buried interface of perovskite solar cells (PSC) hinder performance. Addressing these defects through passivation and engineering strategies is crucial for developing efficient and reliable photovoltaic devices.
Area of Science:
- Materials Science
- Renewable Energy
- Solid-State Physics
Background:
- Perovskite solar cells (PSCs) offer a promising low-cost, high-efficiency photovoltaic technology.
- Defects at the buried interface, including vacancies and strain, impede PSC performance and stability.
- Understanding these defects is critical for advancing PSC technology.
Purpose of the Study:
- To critically discuss defects at the buried interface of PSCs.
- To elucidate characterization methods for defect identification.
- To present strategies for mitigating defects and improving PSCs.
Main Methods:
- Review of existing literature on PSC defects.
- Discussion of in situ and ex situ characterization techniques.
- Analysis of defect mitigation strategies.
Main Results:
- Defects at the charge transporting layer (CTL) and perovskite film interface negatively affect optoelectronic properties.
- Characterization methods reveal defect influence on efficiency, stability, and hysteresis.
- Various strategies like passivation and strain engineering can manage defects.
Conclusions:
- Defect management at the buried interface is essential for high-performance PSCs.
- Innovative strategies can lead to more efficient, reliable, and commercially viable PSCs.
- Further research into defect mitigation is vital for the future of solar energy.
