Laminating Structure for Interlayer Corona Discharge Treatment Toward Ion-Based Nanogenerators

Area of Science:

• Materials Science
• Energy Harvesting
• Nanotechnology

Background:

• Triboelectric nanogenerators (TENGs) offer promising energy harvesting capabilities.
• Corona discharge treatment (CDT) enhances TENG performance but suffers from rapid charge dissipation.
• Dissipation of charges by air moisture or thermal emission limits TENG longevity.

Purpose of the Study:

• To develop a stable and high-performance TENG by replacing electron injection with ionic charge injection.
• To overcome the limitations of charge dissipation in CDT-enhanced TENGs.
• To introduce a novel fabrication method for ionic charge injection in TENGs.

Main Methods:

• Fabrication of a silver nanowires (NWs)-embedded laminating structure (AeLS).
• Utilizing interlayer-CDT (i-CDT) for controlled ionic charge injection.
• Characterization of AeLS TENG performance, stability, and durability.

Main Results:

• AeLS TENGs with i-CDT demonstrated high performance with voltage (380 V), current (15 µA), and power output (827 mW m⁻²).
• Achieved long-term stability and durability, overcoming previous dissipation issues.
• A rotational TENG with a direct discharge system reached high current (7.4 mA) and voltage (7800 V).

Conclusions:

• The developed AeLS TENG with i-CDT offers a viable solution for high-performance and stable TENGs.
• Ionic charge injection effectively prevents charge dissipation, enhancing device longevity.
• This approach paves the way for next-generation ion-based TENGs with superior performance.