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Perovskite Solar Cells toward Eco-Friendly Printing
Xiaoming Chang1, Yuanyuan Fan1, Kui Zhao1
1Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
This study introduces eco-friendly printing for high-performance perovskite solar cells using sustainable solvents and scalable blade coating. This method achieves efficiencies comparable to traditional toxic solvent-based fabrication, enabling greener manufacturing.
Area of Science:
- Materials Science
- Renewable Energy
- Chemical Engineering
Background:
- Eco-friendly printing is crucial for sustainable mass production of thin-film photovoltaic (PV) devices.
- Perovskite PVs face challenges due to the lack of suitable eco-friendly solvents for ambient fast printing.
Purpose of the Study:
- To demonstrate an eco-friendly printing concept for high-performance perovskite solar cells.
- To develop scalable fabrication methods using environmentally benign solvents.
Main Methods:
- Fabrication of perovskite and charge transport layers using eco-friendly solvents via scalable fast blade coating under ambient conditions.
- Investigation of perovskite dynamic crystallization using in situ grazing incidence wide-angle X-ray scattering (GIWAXS).
Main Results:
- Achieved high-quality coatings for both perovskite and charge transport layers by controlling film formation.
- Demonstrated a power conversion efficiency of 18.26% for eco-friendly printed perovskite solar cells.
- Identified a long sol-gel window and strong precursor-solvent interactions during dynamic crystallization.
Conclusions:
- The developed eco-friendly printing method is on par with conventional methods using toxic solvents.
- This approach paves the way for green, high-throughput industrial-scale fabrication of perovskite PVs.
