A High-Performance Nitro-Explosives Schottky Sensor Boosted by Interface Modulation
Yang, Z (Yang, Zheng); Dou, XC (Dou, Xincun); Zhang, SL (Zhang, Shengli); Guo, LJ (Guo, Linjuan); Zu, BY (Zu, Baiyi); Wu, ZF (Wu, Zhaofeng); Zeng, HB (Zeng, Haibo)
2015
发表期刊ADVANCED FUNCTIONAL MATERIALS
卷号25期号:26页码:4039-4048
摘要A high-performance Schottky sensor boosted by interface modulation is fabricated for the detection of trace nitro-explosives vapors. The interface modulation strategy results in a silicon nanowires (SiNWs) array/TiO2/reduced graphene oxide (rGO) sensor with sensitive and selective response toward nitro-explosives vapors. The response of the SiNWs array/TiO2/rGO sensor toward nitro-explosives vapors, such as 9 ppb 2,4,6-trinitrotoluene, 4.9 ppt hexogen, and 0.25 ppq octagon, is boosted by 2.4, 7.5, and 5 times with the insertion of TiO2. Superior selectivity is shown even compared with interfering gases of 10 ppm. Such good sensing performance can be attributed to the good sensing performance of the Schottky heterojunction-based sensor, the Schottky barrier height modulation with the insertion of TiO2, SiNWs array structure enhanced diffusion, and TiO2 nanoparticles enhanced adsorption. This is believed to be the first Schottky heterojunction-based sensor for nitro-explosives vapors detection. This work would open a new way to develop highly sensitive and selective sensors.
关键词Interface Modulation Nitro-explosives Schottky Sensor Selectivity Tio2
DOI10.1002/adfm.201501120
收录类别SCI
WOS记录号WOS:000357812500007
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被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/4548
专题中国科学院特殊环境功能材料与器件重点试验室
作者单位Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China;Univ Chinese Acad Sci, Beijing 100049, Peoples R China; Nanjing Univ Sci & Technol, Coll Mat Sci & Engn, Inst Optoelect & Nanomat, Nanjing 210094, Jiangsu, Peoples R China
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Yang, Z ,Dou, XC ,Zhang, SL ,et al. A High-Performance Nitro-Explosives Schottky Sensor Boosted by Interface Modulation[J]. ADVANCED FUNCTIONAL MATERIALS,2015,25(26):4039-4048.
APA Yang, Z .,Dou, XC .,Zhang, SL .,Guo, LJ .,Zu, BY .,...&Zeng, HB .(2015).A High-Performance Nitro-Explosives Schottky Sensor Boosted by Interface Modulation.ADVANCED FUNCTIONAL MATERIALS,25(26),4039-4048.
MLA Yang, Z ,et al."A High-Performance Nitro-Explosives Schottky Sensor Boosted by Interface Modulation".ADVANCED FUNCTIONAL MATERIALS 25.26(2015):4039-4048.
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