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Published on: January 23, 2013
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Scalable and enhanced triboelectric output power generation by surface functionalized nanoimprint patterns
Yang Hyeog Kwon1, Sung-Ho Shin, Joo-Yun Jung
1Department of Electrical Engineering, Chungnam National University, Daejeon, 34134, Korea.
Nanotechnology
|April 8, 2016
Summary
Nanoimprint lithography enhances triboelectric nanogenerators (TENGs) by creating submicron patterns. This method significantly boosts output power for scalable energy generation.
Area of Science:
- Materials Science
- Nanotechnology
- Energy Harvesting
Background:
- Triboelectric nanogenerators (TENGs) offer a promising avenue for harvesting ambient mechanical energy.
- Scalable and efficient power generation remains a key challenge for TENG applications.
Purpose of the Study:
- To investigate nanoimprint lithography for fabricating TENGs with enhanced performance.
- To explore the impact of surface patterning on TENG output power and scalability.
Main Methods:
- Utilized nanoimprint lithography to create submicron patterns on polyurethane acrylate (PUA) surfaces.
- Employed perfluoropolyether (PFPE) coating on the counter-contact surface.
- Investigated varying line pitches and chemical functionalization with poly(diallyldimethylammonium chloride) (PDDA).
Main Results:
- A TENG with 200 nm pitch PUA lines achieved voltages up to ~430 V and currents of ~55 μA cm⁻², a sixfold increase in output power compared to flat surfaces.
- Scalable output power was demonstrated by adjusting line pitches.
- PDDA functionalization further enhanced voltage and current to ~500 V and ~100 μA cm⁻², a ~50% increase in power density.
Conclusions:
- Nanoimprint lithography provides a simple, effective, and scalable method for fabricating high-performance TENGs.
- Surface patterning and chemical functionalization are crucial for optimizing TENG output.
- This approach facilitates reproducible fabrication of TENGs for efficient energy harvesting.
