📰 Publication Alert: Advancing Water-Processed Perovskite Solar Cells with Fluoride Additive Engineering
We’re excited to announce the latest publication from our group in Materials Futures (Vol. 4, No. 2), titled:
“Lead (II) fluoride additive modulating grain growth of water-processed metal halide perovskites for enhanced efficiency in solar cells”
In the push toward greener and more scalable solar technologies, water-processable perovskite solar cells (PSCs) offer an eco-friendly alternative to conventional fabrication using toxic organic solvents. However, their performance has traditionally lagged behind—until now.
In this study, we introduce a novel additive engineering strategy using PbF₂ (lead(II) fluoride) to modulate crystal growth and surface chemistry during the water-based perovskite formation process. This approach accelerates phase transformation, enhances crystal orientation, and leverages the strong electronegativity of fluoride anions to passivate grain surfaces, significantly improving film quality and charge transport.
⚡ Key Outcomes:
- Achieved 18.1% power conversion efficiency (PCE) with PbF₂ additive vs. 16.3% in pristine devices
- Enhanced crystallinity and optical/electronic properties
- Improved operational and environmental stability of devices
This work presents a promising route for environmentally friendly, high-performance PSCs and brings water-processing technology closer to commercial viability.
📄 Authors: Minh Tam Hoang, Junxian Liu, Yang Yang, Maciej Klein, Wei-Hsun Chiu, Yongyue Yu, Ngoc Duy Pham, Paul Moonie, Ajay Pandey, Liangzhi Kou, and Hongxia Wang
🔗 Read the full article here: Materials Futures
A big congratulations to all the authors on this important step toward sustainable solar energy! 🌱☀️