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Updated: Jun 27, 2025
11:38
Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
18.5K
Bilateral Production Shield Enabling Highly Efficient Perovskite Photovoltaics
Xiao-Zhao Zhu1,2, Kai-Li Wang1, Run-Jun Jin1
1Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, 215123, China.
Small (Weinheim an Der Bergstrasse, Germany)
|May 5, 2024
Summary
Atomic layer deposition of Al2O3 and TiO2 films significantly enhances perovskite solar cell stability. These protective layers shield devices from moisture, oxygen, and UV light, extending operational lifespan and showing industrial potential.
Area of Science:
- Materials Science
- Renewable Energy
- Nanotechnology
Background:
- Perovskite solar cells (PSCs) face degradation from environmental factors like moisture, oxygen, and UV light.
- Encapsulation and intrinsic material stabilization are key strategies to improve PSC longevity.
Purpose of the Study:
- To enhance the operational stability of perovskite solar cells using atomic layer deposition (ALD).
- To investigate the protective effects of Al2O3 and TiO2 thin films against environmental stressors.
Main Methods:
- ALD was used to deposit ≈100 nm Al2O3 films on the front side of PSCs for moisture and oxygen isolation.
- ALD was employed to deposit ≈100 nm TiO2 films on the glass surface to filter UV light.
- Stability testing under ambient air and UV illumination was conducted.
Main Results:
- Devices with Al2O3 and TiO2 films showed significantly improved stability under humid air and illumination.
- After 1000 hours in ambient air, device efficiency retained 95%.
- After 662 hours of UV exposure, device efficiency remained at 88%.
Conclusions:
- The combined Al2O3 and TiO2 thin films effectively protect PSCs from degradation.
- ALD-based encapsulation strategies offer a promising route for the industrial application of stable perovskite solar cells.
