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利用水热法合成花状的ZnO纳米棒,并对其进行X射线衍射(X-ray diffraction,XRD)与扫描电子显微镜(scanning electron microscope,SEM)表征.以该ZnO为敏感材料制成了旁热式结构气体传感器,测试了样品在不同温度下对丙酮气体的灵敏度.结果表明样品在290℃下对于丙酮气体具有高的灵敏度、快的响应恢复速度等特点.测试了传感器对于常见干扰气体的灵敏度,表明器件具有良好的选择性.
The flower-like ZnO nanorods were synthesized by hydrothermal method and characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) The thermal structure gas sensor was used to test the sensitivity of the sample to acetone gas at different temperatures.The results show that the sample has the characteristics of high sensitivity to acetone gas and fast response recovery speed at 290 ℃ .The sensitivity of the sensor to common interfering gas Sensitivity, indicating that the device has good selectivity.