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Polymer Composite-Based Triboelectric Nanogenerators: Recent Progress, Design Principles, and Future Perspectives.

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Triboelectric nanogenerators (TENGs) offer sustainable power for electronics. Enhancing polymer composites with functional fillers improves TENG performance and durability, paving the way for self-powered devices.

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Area of Science:

  • Materials Science
  • Energy Harvesting
  • Nanotechnology

Background:

  • Growing demand for portable electronics necessitates sustainable energy solutions.
  • Triboelectric nanogenerators (TENGs) convert mechanical energy to electricity but face performance limitations.
  • Low surface charge density and poor charge retention hinder TENG efficiency.

Purpose of the Study:

  • To review the role of polymer composite design in enhancing TENG performance.
  • To analyze how functional fillers impact dielectric properties and mechanical durability.
  • To categorize materials by triboelectric polarity and discuss composite strategies.

Main Methods:

  • Comprehensive review of recent research on polymer composites for TENGs.
  • Analysis of filler materials and their effects on triboelectric properties.
  • Categorization of polymers based on triboelectric polarity (negative and positive).

Main Results:

  • Functional fillers improve dielectric performance, mechanical durability, and charge retention in TENGs.
  • Composite strategies enhance surface charge density for tribo-negative polymers (e.g., PDMS, PVDF).
  • Tribo-positive materials (e.g., nylon, cellulose) show improved robustness and stability via composites.

Conclusions:

  • Polymer composite design is crucial for high-performance TENGs.
  • Material selection, surface engineering, and filler integration are key for advancing TENG technology.
  • Further development is needed for practical and scalable TENG applications.