An ultraviolet (UV) sensor consisting of a zinc oxide (ZnO) nanofiber sensing membrane and a quartz crystal microbalance (QCM) was fabricated. ZnO nanofibers were prepared by electrospinning and calcination. The morphology and structure of the nanofiber sensing membrane were characterized by scanning electron microscopy and X-ray diffraction. The QCM sensor based on ZnO nanofibers was found to be sensitive to 254-nm UV light in nitrogen, oxygen and air atmospheres. When the QCM sensor was placed under UV irradiation, the resonant frequency difference rapidly decreased. When the light was removed, the frequency difference recovered until reaching 0 Hz. The stability and repeatability of the proposed ZnO nanofiber-based QCM sensor were demonstrated, and the sensing mechanism was briefly discussed.

中文翻译：

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石英晶体微天平技术用于紫外传感的电纺氧化锌纳米纤维

制作了由氧化锌 (ZnO) 纳米纤维传感膜和石英晶体微量天平 (QCM) 组成的紫外 (UV) 传感器。通过静电纺丝和煅烧制备ZnO纳米纤维。通过扫描电子显微镜和X射线衍射对纳米纤维传感膜的形貌和结构进行了表征。发现基于 ZnO 纳米纤维的 QCM 传感器对氮气、氧气和空气气氛中的 254 nm 紫外光敏感。当 QCM 传感器置于紫外线照射下时，谐振频率差迅速减小。当光被移除时，频率差恢复直到达到0 Hz。证明了所提出的基于 ZnO 纳米纤维的 QCM 传感器的稳定性和可重复性，并简要讨论了传感机制。