A novel device concept is proposed for a flexible UV photodetector based on carbon fibers integrated with zinc oxide (ZnO) nanorods and Ag nanowire film. Carbon fibers were uni-directionally aligned to provide both a flexible substrate and bottom electrode simultaneously. Arrays of ZnO nanorods were hydrothermally synthesized along the radial direction on the carbon fiber surfaces to function as active regions. Ag nanowire film was spray-coated on the ZnO nanorod arrays as a flexible, transparent, and air-permeable top electrode. The device exhibited Schottky-type current–voltage behavior and an ambience-dependent photoresponse. While the ratio of on/off photocurrent was higher under vacuum, response times were shorter in air, implying that oxygen-related adsorbates on the ZnO nanorods had a role in controlling the minority carrier lifetime. The device also demonstrated mechanical stability under repeated bending as revealed from the stabilized performances after about 6000 cycles of bending with a radius of 5 mm.

中文翻译：

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基于碳纤维，ZnO纳米棒和Ag纳米线的柔性紫外线检测器†

提出了一种基于碳纤维的柔性紫外光电探测器的新型装置概念，该碳纤维集成了氧化锌（ZnO）纳米棒和Ag纳米线薄膜。碳纤维被单向排列以同时提供柔性基板和底部电极。在碳纤维表面上沿径向水热合成了ZnO纳米棒阵列，以用作活性区域。将银纳米线薄膜喷涂在ZnO纳米棒阵列上，作为柔性，透明和透气的顶部电极。该器件表现出肖特基型电流-电压行为和与环境有关的光响应。虽然在真空下开/关光电流的比率较高，但在空气中的响应时间较短，这意味着ZnO纳米棒上与氧有关的吸附物具有控制少数载流子寿命的作用。