Schematic illustration.

Major Contributions

1.Developed a novel PVDF-based composite film by integrating TiO₂-modified g-C₃N₄ (TiO₂-CN), forming a uniform and interconnected heterostructure that significantly enhances dielectric properties and prevents particle aggregation. This structure improves the effective contact area, leading to superior triboelectric output compared to conventional PVDF-based materials.

2.Demonstrated that optimizing the TiO₂-to-g-C₃N₄ ratio within the composite maximizes self-polarization and triboelectric performance, resulting in a threefold increase in pressure sensitivity (1.79 V·kPa⁻¹) and a substantial boost in output voltage (up to 136 V), enabling the device to power 94 LEDs in series.

3.Showcased the composite’s multifunctionality for next-generation wearable electronics by achieving high sensitivity, flexibility, and durability in self-powered pressure sensing applications, including real-time biomechanical monitoring, with excellent stability under repeated mechanical stress.

主要貢獻

1.創新開發出以TiO₂修飾g-C₃N₄（TiO₂-CN）為填料的PVDF基複合薄膜，形成均勻且互連的異質結構，有效提升材料的介電性並防止顆粒聚集，進而增大有效接觸面積，顯著提升摩擦電輸出，相較於傳統PVDF基材料具有明顯優勢。

2.通過優化複合材料中TiO₂與g-C₃N₄的比例，最大化自極化與摩擦電性能，使壓力感測靈敏度提升三倍（達1.79 V·kPa⁻¹），輸出電壓大幅提升（最高可達136 V），並可直接點亮94顆LED，展現卓越的能量輸出能力。

3.展現此複合材料於次世代可穿戴電子產品的多功能應用，包括高靈敏度、高柔韌性及耐久性，於自供能壓力感測與即時生物力學監測中表現優異，並在反覆機械應力下展現出色的穩定性。