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Updated: May 31, 2026
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Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
Synergistic dual-interface modification for high-performance CsPbBr3 perovskite solar cells: a combined experimental
Xinghua Li1,2, Zhongchen Bai3, Qixin Chen1,4
1College of Big Data and Information Engineering, Guizhou University Guiyang City 550025 China zpzhang@gzu.edu.cn.
RSC Advances
|May 29, 2026
Summary
This study enhances all-inorganic perovskite solar cells (PSCs) by modifying interfaces with N,N'-dicyclohexylcarbodiimide (DCC) and NH4F. This dual modification boosts power conversion efficiency by addressing energy level mismatches and improving device performance.
Area of Science:
- Materials Science
- Renewable Energy
- Photovoltaics
Background:
- All-inorganic CsPbBr3 perovskite solar cells (PSCs) face efficiency limitations due to interfacial energy level mismatches.
- Optimizing interfaces is crucial for enhancing PSC performance and stability.
Purpose of the Study:
- To develop a synergistic dual-interface modification strategy for C/CsPbBr3/SnO2-structure PSCs.
- To improve the photoelectrical performance and power conversion efficiency of PSCs.
Main Methods:
- Utilized N,N -dicyclohexylcarbodiimide (DCC) at the CsPbBr3/carbon interface to elevate the CsPbBr3 Fermi level.
- Employed NH4F at the SnO2/CsPbBr3 interface to upshift the SnO2 Fermi level and enhance CsPbBr3 crystallinity.
- Established a dual-diode series model (DDSM) to analyze interfacial effects.
Main Results:
- The optimized PSC achieved a power conversion efficiency of 9.59%, with an open-circuit voltage (VOC) of 1.53 V and a fill factor (FF) of 82.4%.
- DCC suppressed non-radiative recombination, increasing VOC.
- NH4F enhanced CsPbBr3 crystallinity, improving FF.
Conclusions:
- The synergistic dual-interface modification effectively enhances the performance of all-inorganic PSCs.
- The DDSM provides a robust theoretical framework for understanding and designing high-performance PSCs.
- This strategy offers a pathway for developing efficient and stable perovskite solar cells.
