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首先对Au纳米颗粒进行巯基修饰,再对其采用表面活性剂十六烷基三甲基溴化铵(CTAB)进行二级修饰,并将其自组装负载于石墨烯纳米毯(GNSs)上。通过紫外-可见吸收光谱证明Au纳米颗粒在石墨烯纳米毯(GNSs)上的成功负载。通过透射电子显微镜探明其微观结构,表明Au纳米颗粒在石墨烯纳米毯上呈现局部规整排列,其原因与石墨烯纳米毯自身的平整结构有关。采用开孔Z-扫描技术研究了负载Au纳米颗粒的石墨烯纳米...
Investigation on microstructure evolution of oxidized Ni/Au ohmic contacts to p-GaN by XRD
microstructure evolution Ni/Au p-GaN XRD
2010/7/15
The microstructure evolution of oxidized Ni (20nm)/Au (20nm) contact to p-GaN with increasing annealing temperature was studied by synchrotron x-ray diffraction (XRD) and powder XRD. With the increase...