Enhanced Ethanol Sensing Properties of NiO@ZnO Core-Shell Nanofibers with P-N Heterojunction

Bai, Jinglong1,2; Zhao, Changhui1; Gong, Huimin1; Wang, Fei1,3

10.1109/ICSENS.2017.8234325

2017

21689229

978-1-5090-1013-4

2017 IEEE SENSORS

2017-December

1347-1349

29 Oct.-1 Nov. 2017

Glasgow, United kingdom

345 E 47TH ST, NEW YORK, NY 10017 USA

IEEE

Herein we have fabricated NiO@ZnO core-shell nanofibers (CSNFs) via a facile two-step method. Nickel nitrate/polyacrylonitrile (Ni(NO3)MN2/PAN) composite nanofibers were synthesized firstly by electrospinning, and atomic layer deposition (ALD) technique was applied to control the deposition of ZnO shell layers. After annealing at 600 degrees C in air, well-defined NiO@ZnO CSNFs were obtained. Gas-sensing measurements showed that NiO@ZnO CSNFs exhibited highly sensitive and selective ethanol sensing properties at 275 degrees C compared to those of pure NiO and ZnO NFs, suggesting that the fabrication of P-N heterojunction is an effective approach to improve their gas-sensing performance.

NiO@ZnO core-shell nanofibers electrospinning atomic layer deposition gas sensors

第一 ; 通讯

英语

CPCI-S ; EI

Guangdong Natural Science Funds for Distinguished Young Scholar[2016A030306042]

Engineering ; Remote Sensing

Engineering, Electrical & Electronic ; Remote Sensing

WOS:000427677500453

20181304943330

Chemical detection ; Chemical sensors ; Electrospinning ; Ethanol ; Gas detectors ; Heterojunctions ; II-VI semiconductors ; Nanofibers ; Nickel oxide ; Shells (structures) ; Zinc oxide

Structural Members and Shapes:408.2 ; Semiconductor Devices and Integrated Circuits:714.2 ; Nanotechnology:761 ; Chemistry:801 ; Organic Compounds:804.1 ; Inorganic Compounds:804.2 ; Fiber Chemistry and Processing:819.3 ; Accidents and Accident Prevention:914.1 ; Solid State Physics:933 ; Crystal Growth:933.1.2

Web of Science

1.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen, Peoples R China
2.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou, Gansu, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Transducer Technol, Shanghai, Peoples R China

Bai, Jinglong,Zhao, Changhui,Gong, Huimin,et al. Enhanced Ethanol Sensing Properties of NiO@ZnO Core-Shell Nanofibers with P-N Heterojunction[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2017:1347-1349.