Self-Activated Transparent All-Graphene Gas Sensor with Endurance to Humidity and Mechanical Bending

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• 作者：Yeon Hoo Kim ; Sang Jin Kim ; Yong-Jin Kim ; Yeong-Seok Shim ; Soo Young Kim ; Byung Hee Hong ; Ho Won Jang
• 刊名：ACS Nano
• 出版年：2015
• 出版时间：October 27, 2015
• 年：2015
• 卷：9
• 期：10
• 页码：10453-10460
• 全文大小：577K
• ISSN：1936-086X

文摘

Graphene is considered as one of leading candidates for gas sensor applications in the Internet of Things owing to its unique properties such as high sensitivity to gas adsorption, transparency, and flexibility. We present self-activated operation of all graphene gas sensors with high transparency and flexibility. The all-graphene gas sensors which consist of graphene for both sensor electrodes and active sensing area exhibit highly sensitive, selective, and reversible responses to NO₂ without external heating. The sensors show reliable operation under high humidity conditions and bending strain. In addition to these remarkable device performances, the significantly facile fabrication process enlarges the potential of the all-graphene gas sensors for use in the Internet of Things and wearable electronics.