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Updated: Aug 8, 2025
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Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
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Multifunctional Hybrid Interfacial Layers for High-Performance Inverted Perovskite Solar Cells
Benfang Niu1, Haoran Liu1, Yanchun Huang1
1State Key Laboratory of Silicon Materials, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|February 25, 2023
Summary
Researchers developed a new interface for inverted perovskite solar cells (PSCs) that enhances stability and efficiency. This breakthrough enables high-performance PSCs and scalable modules with improved longevity.
Area of Science:
- Materials Science
- Renewable Energy
- Photovoltaics
Background:
- Inverted perovskite solar cells (PSCs) face challenges in performance and stability.
- The interface between perovskite and charge extraction layers is a key instability point.
Purpose of the Study:
- To develop a simple, scalable interfacial strategy for high-performance inverted PSCs.
- To improve the stability and efficiency of perovskite solar cells and modules.
Main Methods:
- A hybrid interfacial layer using self-assembly triphenylamine and conjugated poly(arylamine) was employed.
- This layer simultaneously enhances chemical stability, charge extraction, and energy level alignment.
- The method also promotes perovskite crystallization.
Main Results:
- Achieved power conversion efficiencies (PCEs) of 24.5% for inverted PSCs and 20.7% for modules (19.4 cm²).
- Maintained over 80% of initial efficiency after 1200 hours of illumination.
- Demonstrated high PCE of 19.6% for 1.76-eV bandgap PSCs, showing versatility.
Conclusions:
- The developed interfacial strategy is simple, scalable, and effective for state-of-the-art inverted PSCs and modules.
- This approach significantly improves the stability and efficiency of perovskite solar technology.
- The method shows broad applicability across different perovskite bandgaps.
