Fiber-Shaped Perovskite Solar Cells with High Power Conversion Efficiency

Area of Science:

• Materials Science
• Renewable Energy
• Nanotechnology

Background:

• Perovskite solar cells offer high efficiency but often lack mechanical flexibility.
• Wearable electronics require power sources that are lightweight, flexible, and durable.

Purpose of the Study:

• To create a flexible perovskite solar cell fiber with high power conversion efficiency.
• To explore its potential for integration into smart textiles for wearable applications.

Main Methods:

• Fabrication of a perovskite solar cell fiber using a controllable deposition method.
• Integration of aligned titanium dioxide (TiO2) nanotubes, a uniform perovskite layer, and a transparent aligned carbon nanotube sheet.

Main Results:

• Achieved a high power conversion efficiency of 7.1% for the perovskite solar cell fiber.
• Demonstrated flexibility and stability of the fabricated fiber.
• Confirmed the contribution of aligned TiO2 nanotubes, perovskite layer, and carbon nanotube sheet to photovoltaic performance.

Conclusions:

• The developed perovskite solar cell fiber is a promising candidate for wearable power sources.
• Its flexibility and high efficiency make it suitable for weaving into smart clothing.
• Controllable deposition is key to achieving high photovoltaic performance in fiber-based solar cells.