Transparent Conductive Films Based on rGO/AgNW/PET for Electrical Heating and Electromagnetic Interference Shielding...

Area of Science:

• Materials Science
• Nanotechnology
• Optoelectronics

Background:

• Flexible transparent conductive films (TCFs) are crucial for modern electronics.
• Silver nanowires (AgNWs) offer high transmittance and conductivity but suffer from oxidation.
• Indium tin oxide (ITO) is a conventional material facing limitations in flexibility and cost.

Purpose of the Study:

• To enhance the stability and performance of AgNW-based TCFs.
• To explore the use of reduced graphene oxide (rGO) as a protective and conductive layer.
• To develop a spray-coating method for fabricating improved TCFs.

Main Methods:

• Fabrication of TCFs using a spray-coating technique.
• Incorporation of reduced graphene oxide (rGO) onto silver nanowire (AgNW) networks.
• Characterization of optical transmittance, sheet resistance, thermal stability, and EMI shielding.

Main Results:

• Achieved 77% transmittance at 550 nm and a sheet resistance of 6.8 Ω/sq.
• Demonstrated stable operation at a surface temperature of 95 °C at 6 V.
• Obtained an electromagnetic interference shielding effectiveness of 27 dB.

Conclusions:

• Spray-coated rGO/AgNW/PET TCFs exhibit enhanced performance and stability.
• The rGO layer effectively inhibits AgNW oxidation, improving long-term durability.
• These TCFs show significant potential for flexible optoelectronic applications.