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

中文翻译：

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高深阱密度实现高效输出和稳定性摩擦电材料


随着全球对可持续材料的日益关注，纸张因其可生物降解性和低成本而受到青睐。它们与摩擦纳米发电机 （TENG） 的集成为自供电的纸基摩擦电材料奠定了广阔的前景。然而，这些材料本身就缺乏有效的电荷存储结构，导致电荷快速耗散。本研究介绍了一种纸基摩擦电材料，使用氢键策略组装的深陷阱进行高效电荷存储。与纯纸相比，该材料将深陷阱密度提高了 ∼54 倍，在高频下的介电常数提高了 ∼10 倍。基于该材料的 TENG 的峰值输出功率密度比纸基 TENG 高 ∼45 倍，并在 20,000 次循环后保持稳定的电压。它还表现出卓越的环境稳定性和实用性，在热环境中的电压降低最小。这为在极端条件下为小型电子设备供电和维持提供了一种实用有效的解决方案。