Sub-ppb and ultra selective nitrogen dioxide sensor based on sulfur doped graphene
Sub-ppb and ultra selective nitrogen dioxide sensor based on sulfur doped graphene
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DOI：
10.1016/j.snb.2017.09.021
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发表时间：
2018-02-01
影响因子：
8.4
通讯作者：
Li, Tie
中科院分区：
文献类型：
--
作者：
Guo, Lianfeng;Li, Tie
在此，我们提出了一种原位制备的方法来制备与微热平台（MHP）集成的S掺杂石墨烯传感器。在制造过程中，石墨烯仅被转移一次，并且硫在500摄氏度下原位掺杂在石墨烯中。所制备的硫掺杂石墨烯（SG）传感器在室温（RT）下对NO2具有500 ppt至100 ppm的大范围灵敏度。在MHP集成加热器的帮助下，SG传感器可以在5 min内快速恢复到基线。此外，SG传感器对NO2具有良好的选择性，这对于实际应用至关重要。(C)2017爱思唯尔B.V.保留所有权利。
Herein, we propose an in-situ fabrication method to prepare S-doped graphene sensor integrated with micro-hotplatform (MHP). During the fabrication process, the graphene is transfeauthorrred only one time and sulfur is in-situ doped in graphene at 500 degrees C. The as-prepared sulfur doped graphene (SG) sensors are sensitive to NO2 with large range from 500 ppt to 100 ppm at room temperature (RT). With the help of heater integrated in MHP, the SG sensors could quickly recover to the baseline within 5 min. Furthermore, the SG sensors exhibit excellent selectivity for NO2 which is essential for practical applications. (C) 2017 Elsevier B.V. All rights reserved.