Abstract Ultraviolet (UV) detection is of important significance in protecting environment, human health and related scenarios. Schottky barrier height (SBH) plays a key role in determining the performance of UV sensors. Herein, triboelectric voltage was proposed to lower the SBH of zinc oxide nano/micro wire and silver paste (ZnO//Ag) UV sensor. SBH was flexibly lowered by different times of triboelectric voltage treatment. Greatly improved UV response was achieved based on Schottky-to-Schottky contact after lowering its SBH, its photoresponse rates were enhanced by 645 % at raising edge from 6.77 s to 1.05 s, and 716 % at falling edge from 2.72 s to 0.38 s. The on/off ratio was greatly increased from 590 to 10400. Based on these results, the triboelectric technology may provide new views for tuning performance of Schottky-junction-based sensors. The developed tunable ZnO//Ag sensor combined with triboelectric voltage opens up possibility for future high sensitive UV sensing systems.

中文翻译：

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摩擦极化增强型高灵敏度 ZnO 紫外传感器

摘要 紫外线（UV）检测在保护环境、人类健康及相关场景中具有重要意义。肖特基势垒高度 (SBH) 在决定紫外线传感器的性能方面起着关键作用。在此，提出摩擦电压以降低氧化锌纳米/微米线和银浆（ZnO//Ag）UV传感器的SBH。SBH 通过不同时间的摩擦电压处理灵活降低。降低其SBH后，基于肖特基-肖特基接触实现了大幅改善的紫外响应，其光响应率在上升沿从6.77秒提高到1.05秒提高了645%，在下降沿从2.72秒提高到0.38秒提高了716%。开关比从 590 大大增加到 10400。基于这些结果，摩擦电技术可能为基于肖特基结的传感器的性能调谐提供新的观点。