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Polyvinylpyrrolidone-Polycarbosilane Core-Shell Fibrous Membrane as an Advanced Material for Triboelectric
Gunendra Prasad Ojha1,2, Puran Pandey3, Yun-Su Kuk4
1Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun, Jeonbuk-do 55338, Republic of Korea.
ACS Applied Materials & Interfaces
|March 13, 2026
Summary
Researchers developed a new polyvinylpyrrolidone/polycarbosilane fibrous membrane for advanced triboelectric nanogenerators (TENGs). This novel material significantly boosts electrical output for sustainable electronics.
Area of Science:
- Materials Science
- Nanotechnology
- Energy Harvesting
Background:
- Triboelectric nanogenerators (TENGs) are promising for sustainable electronics.
- Developing high-performance materials for TENGs is a critical challenge.
- Advanced materials are needed for improved electrical output and device efficiency.
Purpose of the Study:
- To synthesize a novel polyvinylpyrrolidone/polycarbosilane (PVP/PCS) hybrid core-shell fibrous membrane (CS FM).
- To investigate the material's properties for enhanced TENG performance.
- To explore new positive-charged materials for TENG applications.
Main Methods:
- Single-nozzle electrospinning technique used to create PVP/PCS CS FM.
- Characterization of core-shell morphology and material properties (dielectric constant, surface charge potential, work function).
- Evaluation of TENG performance by measuring open-circuit voltage (Voc) and short-circuit current (Isc).
Main Results:
- Successfully synthesized PVP/PCS CS FM with a core-shell structure and interconnected junctions.
- Optimized PVP/PCS-2:1 CS FM exhibited enhanced dielectric constant, surface charge potential, and low work function.
- Significant increase in TENG performance: Voc by 1.76 times and Isc by 1.63 times compared to pure PVP FM.
- Homogeneous PCS distribution increased surface roughness, enhancing charge generation.
Conclusions:
- The novel PVP/PCS CS FM demonstrates superior properties for TENG applications.
- Synergistic effects between PVP and PCS contribute to significantly improved electrical output.
- This work presents a breakthrough in developing new positive-charged materials for advanced TENGs.
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