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Updated: Jul 7, 2026
11:38
Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
18.4K
Weakening Solvent-Solute Interactions for High-Efficiency Screen-Printed Perovskite Solar Cells
Qing Yao1, Zihan Gu1, Changshun Chen1,2
1State Key Laboratory of Flexible Electronics (LoFE) &, Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (Nanjing Tech), 5 Xinmofan Road, Nanjing, 210009, China.
Angewandte Chemie (International Ed. in English)
|February 10, 2025
Summary
Introducing halogen ions to perovskite inks weakens solvent interactions, enabling controlled crystallization for efficient screen-printed solar cells. This advances scalable perovskite photovoltaic fabrication.
Area of Science:
- Materials Science
- Renewable Energy
- Chemical Engineering
Background:
- Screen printing is a promising method for large-scale perovskite solar cell fabrication.
- Conventional methods face challenges with uncontrolled perovskite crystallization due to strong solvent-solute interactions.
- This leads to inefficient phase evolution, limiting device performance.
Purpose of the Study:
- To develop a method for controlled crystallization in screen-printed perovskite solar cells.
- To improve the power conversion efficiency (PCE) and scalability of perovskite photovoltaics.
- To investigate the role of coordination engineering in optimizing perovskite film formation.
Main Methods:
- Introduction of halogen ions into perovskite precursor solutions to modulate solvent-solute interactions.
- Utilizing coordination engineering to weaken Pb⋅⋅⋅O bonds while strengthening Pb-I bonds.
- Optimizing screen-printing parameters for perovskite film deposition.
Main Results:
- Achieved controlled crystallization kinetics, delaying premature phase transitions.
- Demonstrated high PCEs of 21.8% for small-area screen-printed devices and 18.95% for large-area mini-modules.
- Showcased broad process compatibility with PCEs of 23-24% for blade- and spin-coated devices under ambient conditions.
Conclusions:
- Coordination engineering via halogen ion incorporation is a viable strategy for scalable perovskite solar cell manufacturing.
- The developed method enables controlled crystallization, leading to enhanced device performance.
- This approach holds significant potential for the widespread adoption of perovskite photovoltaics.
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