Ultrafast Graphene Oxide Humidity Sensors
Ultrafast Graphene Oxide Humidity Sensors
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DOI：
10.1021/nn404889b
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发表时间：
2013-12-01
期刊：
影响因子：
17.1
通讯作者：
Ryhanen, Tapani
中科院分区：
文献类型：
--
作者：
Borini, Stefano;White, Richard;Ryhanen, Tapani
传感器使电子设备成为数字和物理世界之间的门户，具有前所未有性能的传感器材料可以为用户交互创造新的应用和新的途径。氧化石墨烯可用于湿度和温度传感器，具有许多方便的特性，如灵活性，透明度和大规模制造的适用性。在这里，我们展示了氧化石墨烯的二维性质及其对水的超渗透性联合收割机，使湿度传感器具有前所未有的响应速度（类似于30 ms的响应和恢复时间）。这为各种应用打开了大门，例如非接触式用户界面，我们用“哨声”识别分析来演示。
Sensors allow an electronic device to become a gateway between the digital and physical worlds, and sensor materials with unprecedented performance can create new applications and new avenues for user interaction. Graphene oxide can be exploited in humidity and temperature sensors with a number of convenient features such as flexibility, transparency and suitability for large-scale manufacturing. Here we show that the two-dimensional nature of graphene oxide and its superpermeability to water combine to enable humidity sensors with unprecedented response speed (similar to 30 ms response and recovery times). This opens the door to various applications, such as touchless user interfaces, which we demonstrate with a 'whistling' recognition analysis.