基于ZnO/Graphene纳米复合材料紫外光探测器的制备与实现

摘要

利用化学气相沉积法制备氧化锌(ZnO)纳米线,通过微加工工艺获得了基于 ZnO 纳米线与ZnO石墨烯量子点纳米复合材料的紫外光探测器。ZnO 石墨烯纳米复合材料的结构和表面形貌通过 X 射线电子衍射和扫描电镜来表征,结果表明,ZnO 纳米线的直径约为33 nm,与石墨烯量子点很好地复合在了一起。利用紫外可见吸收谱对样品的光吸收进行了记录,实验表明,基于ZnO复合石墨烯量子点纳米复合材料的紫外探测器在 UV 照射下显示出良好的光响应行为,该类型基于ZnO复合石墨烯量子点探测器可能在ZnO紫外探测的应用方面具有潜在的意义。%ZnO nanowires were carried out with a chemical vapor deposition method.UV detec-tors based on ZnO nanowires and ZnO nanowires combining with a graphene quantum dot nanocom-posite were successfully fabricated in a microfabrication procedure.The structure and surface mor-phology of ZnO/graphene nanocomposite were characterized using X-ray diffraction (XRD)and scan-ning electron microscopy (SEM).The results show that the average size of ZnO nanowires is around 3 3 nm.ZnO nanowires and graphene quantum dot were well mixed.UV-vis spectra were recorded for ZnO nanowires and ZnO/graphene QD nanocomposite.The experiment shows that the UV detector based on ZnO/graphene QD nanocomposite has excellent photoresponse performance.The type of detector based on ZnO combined with graphene quantum dot is important in applications of ZnO for UV detection.