丁樊,顾雁鸣,沈彦平,牟海川,谢海芬

• 1:华东理工大学物理系

摘要(Abstract)：

通过低压化学气相沉积的方法制备了单层石墨烯,用电化学电镀的方法在石墨烯表面沉积了氧化锌纳米层,制作出一种新的、简单、高效的掺杂氧化锌纳米层的石墨烯基气敏传感器,并研究了本征的和电镀氧化锌的石墨烯基气敏传感器对不同体积分数的NO_2气体的响应特性和恢复特性。实验表明:在工作电压-0.5V,时间300s的条件下电镀ZnO的石墨烯基传感器的气敏性最好,其对10ppm NO_2的灵敏度为-22.126%(本文中定义灵敏度为测量电阻R与本征电阻R_0的差值与本征电阻的比值,故为负值),是本征石墨烯传感器的3.85倍,且响应的最低浓度达到0.5ppm(其灵敏度为-0.786%)。

关键词(KeyWords)： 石墨烯;电化学电镀;ZnO;NO2;气敏性

Abstract:

Keywords:

基金项目(Foundation): 2014年全国大学生创新计划投资项目(201410251057)

作者(Author): 丁樊,顾雁鸣,沈彦平,牟海川,谢海芬

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