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Updated: Feb 2, 2026

Flash Infrared Annealing for Perovskite Solar Cell Processing
Published on: February 3, 2021
Recent advancements in compact layer development for perovskite solar cells.
Hamideh Mohammadian-Sarcheshmeh1, Mohammad Mazloum-Ardakani1
1Department of Chemistry, Faculty of Science, Yazd University, Yazd, 89195-741, Iran.
Recent progress in compact layers (CLs), also known as hole blocking layers (HBLs), significantly enhances perovskite solar cell (PSC) efficiency, photo-stability, and durability. Modifications to CLs are crucial for advancing PSC technology and large-scale manufacturing.
Area of Science:
- Materials Science
- Renewable Energy
- Photovoltaics
Background:
- The compact layer (CL), or hole blocking layer (HBL), plays a critical role in perovskite solar cells (PSCs). While not always considered essential, its impact on device performance is profound.
- CLs influence key characteristics of PSCs, including power conversion efficiency, operational stability, and the reduction of hysteresis effects.
Purpose of the Study:
- This review focuses on recent advancements and research concerning the compact layer (CL) in perovskite solar cells (PSCs).
- The objective is to highlight the significance of CL modifications for improving PSC performance and stability.
Main Methods:
- This work is a review of existing literature and recent studies on compact layers for PSCs.
- Analysis of modifications, material changes, and replacements within the CL/HBL of perovskite solar cells.
Main Results:
- Recent studies demonstrate that optimizing the CL/HBL is crucial for enhancing PSC efficiency.
- Modifications to the CL/HBL have shown significant improvements in photo-stability, durability, and reduction of the hysteresis effect in PSCs.
Conclusions:
- The compact layer (CL/HBL) is a pivotal component for advancing perovskite solar cell technology.
- Further research and development in CLs are essential for the commercial viability and large-scale manufacturing of efficient and stable PSCs, including applications in flexible solar cells.
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