Synthesis and study of the structure, magnetic, optical and methane gas sensing properties of cobalt doped zinc oxide microstructures

被引：39
作者：
Aghagoli, Z. [1 ,2 ]
Ardyanian, M. [1 ,2 ]
机构：
[1] Damghan Univ, Sch Phys, Damghan 3671641167, Iran
[2] Damghan Univ, Ctr Solid State Phys Res, Damghan 3671641167, Iran
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2018年 / 29卷 / 09期
关键词：
ROOM-TEMPERATURE FERROMAGNETISM; THIN-FILMS; ZNO; NANOSTRUCTURES; CO; PHOTOLUMINESCENCE; SENSOR; NANOCOMPOSITES; PERFORMANCE; NANORODS;
D O I：
10.1007/s10854-018-8701-4
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Undoped and Cobalt (Co) doped zinc oxide (ZnO & CZx) nanoparticles were synthesized by Solvothermal method. The samples were studied by X-Ray Diffraction (XRD), Energy Dispersive X-ray Spectroscopy (EDS), Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES), UV-Vis spectroscopy and Scanning and Transmission Electron Microscopy (SEM & TEM). Moreover the gas sensing properties of the nanoparticles for methane gas took place. Purity of the samples and Co concentration was investigated by EDS and ICP spectroscopy respectively. XRD results described the hexagonal wurtzite structure for all the samples in which crystallinity and the crystallites size decreased with increase of Co doping level. Using UV-Vis spectroscopy the band gap energy was evaluated and redshift of band gap energy was observed by increasing of Co concentration. SEM images demonstrated that nanoparticles were agglomerated with increase of Co doping level. TEM images revealed the nanoparticles size in the range 11-44 nm. Methane sensing properties was enhanced after Co doping of the ZnO nanoparticles for Co concentration up to 4%.
引用
收藏
页码：7130 / 7141
页数：12
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