Efficient Output\nand Stability Triboelectric Materials\nEnabled by High Deep Trap Density

With the increasing global focus on sustainable materials,\npaper\nis favored for its biodegradability and low cost. Their integration\nwith triboelectric nanogenerators (TENGs) establishes broad prospects\nfor self-powered, paper-based triboelectric materials. However, these\nmaterials inherently lack efficient charge storage structures, leading\nto rapid charge dissipation. This study introduced a paper-based triboelectric\nmaterial with efficient charge storage using deep traps assembled\nby a hydrogen bonds strategy. Compared to pure paper, the material\nincreased the deep trap density by ∼54 times, with an ∼10\ntimes higher dielectric constant at high frequency. TENG based on\nthe material had a peak output power density ∼45 times higher\nthan paper-based TENG and maintained a stable voltage after 20,000\ncycles. It also shows exceptional environmental stability and practicality\nwith minimal voltage reduction in heat environments. This offers a\npractical and effective solution for powering and sustaining small\nelectronic devices under extreme conditions.