Reduced Graphene Oxide Electrically Contacted Graphene Sensor for Highly Sensitive Nitric Oxide Detection

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• 作者：Weiwei Li ; Xiumei Geng ; Yufen Guo ; Jizan Rong ; Youpin Gong ; Liqiong Wu ; Xuemin Zhang ; Peng Li ; Jianbao Xu ; Guosheng Cheng ; Mengtao Sun ; Liwei Liu
• 刊名：ACS Nano
• 出版年：2011
• 出版时间：September 27, 2011
• 年：2011
• 卷：5
• 期：9
• 页码：6955-6961
• 全文大小：887K
• 年卷期：0
• ISSN：1936-086X

文摘

We develop graphene-based devices fabricated by alternating current dielectrophoresis (ac-DEP) for highly sensitive nitric oxide (NO) gas detection. The novel device comprises the sensitive channels of palladium-decorated reduced graphene oxide (Pd-RGO) and the electrodes covered with chemical vapor deposition (CVD)-grown graphene. The highly sensitive, recoverable, and reliable detection of NO gas ranging from 2 to 420 ppb with response time of several hundred seconds has been achieved at room temperature. The facile and scalable route for high performance suggests a promising application of graphene devices toward the human exhaled NO and environmental pollutant detections.