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Adhesive SiO2 Layer-Protected Premium Transparent AgNWs Deposited on Flexible Substrates
Maha A Alenizi1, Naser M Ahmed2,3, Mohammed K Omar4
1Department of Physics, College of Sciences-Arar, Northern Border University institution, P.O. Box 1321, Arar 91431, Saudi Arabia.
ACS Omega
|February 3, 2025
Summary
This study introduces a new method using a silicon dioxide (SiO2) coating to improve the adhesion and oxidation resistance of silver nanowires (AgNWs) in transparent conductive electrodes. This enhances the durability and performance of AgNWs for electronic applications.
Area of Science:
- Materials Science
- Nanotechnology
- Optoelectronics
Background:
- Flexible, conductive, and transparent silver nanowires (AgNWs) are crucial for photovoltaics, touch screens, and optoelectronics.
- Challenges include poor substrate adhesion and oxidation susceptibility, limiting practical applications.
Purpose of the Study:
- To develop robust transparent conductive electrodes (TCEs) using AgNWs with an adhesive SiO2 protective layer.
- To evaluate the performance and stability of these TCEs on various substrates.
Main Methods:
- AgNWs were synthesized using polyol synthesis.
- RF sputtering and spray coating were employed to deposit AgNWs and SiO2 layers.
- TCEs were fabricated on glass, paper, and plastic substrates.
Main Results:
- The SiO2 coating significantly enhanced oxidation resistance, adhesion, mechanical stability, and durability.
- SiO2/AgNWs/Glass electrodes showed 83.36% transmittance and 48.5 Ω sq-1 sheet resistance.
- SiO2/AgNWs/Plastic electrodes exhibited 69.67% transmittance and 50.2 Ω sq-1 sheet resistance.
Conclusions:
- The adhesive SiO2 layer effectively preserves optical and electrical properties of AgNWs.
- This approach enhances substrate adherence and protects against degradation, enabling wider use of AgNWs.
