Related Experiment Video
Updated: Dec 23, 2025
11:38
Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
18.9K
Fully Spray-Coated Triple-Cation Perovskite Solar Cells
James E Bishop1, Connor D Read1, Joel A Smith1
1Department of Physics & Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield, S3 7RH, UK.
Scientific Reports
|April 22, 2020
Summary
Ultrasonic spray-coating enables rapid fabrication of high-efficiency perovskite solar cells (PSCs). This method achieves a champion power conversion efficiency (PCE) of 19.4% on small areas and 12.7% on larger areas, demonstrating potential for low-cost, high-speed solar energy solutions.
Area of Science:
- Materials Science
- Renewable Energy Engineering
- Nanotechnology
Background:
- Perovskite solar cells (PSCs) offer promising photovoltaic performance.
- Scalable and cost-effective fabrication methods are crucial for PSC commercialization.
- Current fabrication techniques can be slow and expensive.
Purpose of the Study:
- To investigate ultrasonic spray-coating for sequential deposition of PSC layers.
- To assess the efficiency and scalability of spray-coated PSCs.
- To demonstrate high-performance PSCs fabricated using a rapid coating technique.
Main Methods:
- Sequential deposition of tin oxide, triple-cation perovskite, and spiro-OMeTAD using ultrasonic spray-coating.
- Fabrication of small-area devices (15.4 mm²) and larger-area modules (1.08 cm²) on 25 mm × 75 mm substrates.
- Rapid coating speeds exceeding 80 mm/s.
Main Results:
- Achieved a champion power conversion efficiency (PCE) of 19.4% for small-area PSCs.
- Demonstrated an average PCE of 10.3% and a peak PCE of 16.3% on larger substrates divided into multiple devices.
- Fabricated a 1.08 cm² module with a PCE of 12.7% by connecting seven small-area devices in parallel.
Conclusions:
- Ultrasonic spray-coating is a viable method for high-efficiency PSC fabrication.
- The technique allows for rapid, scalable production of perovskite solar cells.
- Spray-coated PSCs show potential for low-cost, high-performance solar energy applications.
