Transparent Indium Tin Oxide Electrodes on Muscovite Mica for High-Temperature-Processed Flexible Optoelectronic...

Area of Science:

• Materials Science
• Nanotechnology
• Energy

Background:

• Transparent conductive oxides (TCOs) are crucial for flexible electronics.
• Developing TCOs that withstand high-temperature processing on flexible substrates remains a challenge.

Purpose of the Study:

• To develop flexible tin-doped indium oxide (ITO) electrodes on mica substrates.
• To evaluate the performance of ITO/mica for high-temperature annealing and flexible device applications.

Main Methods:

• Deposition of ITO on transparent and flexible muscovite mica substrates.
• High-temperature annealing up to 500 °C.
• Mechanical bending tests (1000 cycles).
• Fabrication and testing of transparent flexible heaters and perovskite solar cells (PSCs).

Main Results:

• ITO/mica electrodes retained low electrical resistivity after 1000 bending cycles due to mica's layered structure.
• ITO/mica demonstrated rapid temperature ramping (<15 s) to over 438 °C as a transparent heater.
• ITO/mica enabled high-temperature annealing (450 °C) for fabricating high-efficiency flexible PSCs.

Conclusions:

• Mica is a suitable substrate for high-temperature processing of flexible ITO electrodes.
• ITO/mica offers a promising platform for advanced flexible electronic devices, including efficient PSCs and high-performance heaters.