本文采用水热法成功的合成了纯ZnO和ZnO: Cd纳米棒.借助扫描电子显微镜、X射线衍射仪等研究了纯ZnO和ZnO: Cd的形貌、结构及性质.结果表明,合成的纯ZnO和ZnO: Cd均呈六角纤锌矿纳米棒结构,Cd的掺入使得纳米棒尺寸减小、品格发生膨胀.合成材料制成的薄膜型气敏传感器对氢气的敏感性研究表明,纯ZnO薄膜器件对氢气几乎不敏感,而ZnO: Cd薄膜器件灵敏度较高.当工作温度为220℃时,ZnO: Cd薄膜器件对浓度为250ppm的氢气灵敏度达到3.95,且具有良好的可重复性.
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