Effect of Sn dopant concentration on structural and electrical properties of ZnO nanostructures based methane gas sensor

Author(s):  
A.K. Shafura ◽  
M. Hannas ◽  
N.D. Md. Sin ◽  
M Uzer ◽  
M.H. Mamat ◽  
...  
2018 ◽  
Vol 18 (3) ◽  
pp. 353-359 ◽  
Author(s):  
Zhenlan Jin ◽  
In-Hui Hwang ◽  
Chang-In Park ◽  
Sun-Hong Park ◽  
Sang-Wook Han

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1544
Author(s):  
Ghenadii Korotcenkov

Electrospun metal oxide nanofibers, due to their unique structural and electrical properties, are now being considered as materials with great potential for gas sensor applications. This critical review attempts to assess the feasibility of these perspectives. The article in Part 1 discusses the basic principles of electrospinning and the features of the formation of metal oxide nanofibers using this method. Approaches to optimization of nanofibers’ parameters important for gas sensor application are also considered.


2015 ◽  
Vol 1101 ◽  
pp. 153-156 ◽  
Author(s):  
Walelign Wubet ◽  
Dong Hau Kuo

Indium-doped Cu2SnSe3bulk materials with the Cu2(Sn1-xInx)Se3(In-x-CTSe) formula atx= 0, 0.05, 0.1, 0.15, and 0.2 were prepared at 550 °C for 2 h with soluble sintering aids of Sb2S3and Te. Defect chemistry was studied by measuring structural and electrical properties of In-x-Cu2SnSe3as a function of dopant concentration. In-x-CTSe pellets showp-type atx= 0, 0.05 and 0.1 andn-type atx= 0.15 and 0.2. The low hole concentration of 4.56×1017cm-3and high mobility of 410 cm2V-1s-1were obtained for Cu2(Sn1-xInx)Se3bulks atx= 0.1 (10% In). The explanation based upon the In-to-Cu antisite defect for the changes in electrical property was declared.


Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1555
Author(s):  
Ghenadii Korotcenkov

Electrospun metal oxide nanofibers, due to their unique structural and electrical properties, are now being considered as materials with great potential for gas sensor applications. This critical review attempts to assess the feasibility of these perspectives. This article discusses approaches to the manufacture of nanofiber-based gas sensors, as well as the results of analysis of the performances of these sensors. A detailed analysis of the disadvantages that can limit the use of electrospinning technology in the development of gas sensors is also presented in this article. It also proposes some approaches to solving problems that limit the use of nanofiber-based gas sensors. Finally, the summary provides an insight into the future prospects of electrospinning technology for the development of gas sensors aimed for the gas sensor market.


2011 ◽  
Vol 3 (10) ◽  
pp. 1-4 ◽  
Author(s):  
Bushra A Hasan ◽  
◽  
Ghuson H Mohamed ◽  
Amer A Ramadhan

Author(s):  
A. Kareem Dahash Ali ◽  
Nihad Ali Shafeek

This study included the fabrication of    compound (Tl2-xHgxBa2-ySryCa2Cu3O10+δ) in a manner solid state and under hydrostatic pressure ( 8 ton/cm2) and temperature annealing(850°C), and determine the effect of the laser on the structural and electrical properties elements in the compound, and various concentrations of x where (x= 0.1,0.2,0.3 ). Observed by testing the XRD The best ratio of compensation for x is 0.2 as the value of a = b = 5.3899 (A °), c = 36.21 (A °) show that the installation of four-wheel-based type and that the best temperature shift is TC= 142 K  .When you shine a CO2 laser on the models in order to recognize the effect of the laser on these models showed the study of X-ray diffraction of these samples when preparing models with different concentrations of the values ​​of x, the best ratio of compensation is 0.2 which showed an increase in the values ​​of the dimensions of the unit cell a=b = 5.3929 (A °), c = 36.238 (A°). And the best transition temperature after shedding laser is TC=144 K. 


2004 ◽  
Vol 7 (2) ◽  
pp. 363-367 ◽  
Author(s):  
Antonio Leondino Bacichetti Junior ◽  
Manuel Henrique Lente ◽  
Ricardo Gonçalves Mendes ◽  
Pedro Iris Paulin Filho ◽  
José Antonio Eiras

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