Structural, optical and gas sensing properties of pure and Mn-doped In2O3 nanoparticles

2016 ◽  
Vol 42 (9) ◽  
pp. 10957-10966 ◽  
Author(s):  
Kanica Anand ◽  
Jasmeet Kaur ◽  
Ravi Chand Singh ◽  
Rengasamy Thangaraj
Keyword(s):  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
In2o3 Nanoparticles ◽  
Mn Doped

Correlating the magnetism and gas sensing properties of Mn-doped ZnO films enhanced by UV irradiation

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 26227-26238 ◽  
Author(s):  
David E. Motaung ◽  
Ioannis Kortidis ◽  
Gugu H. Mhlongo ◽  
Mart-Mari Duvenhage ◽  
Hendrik. C. Swart ◽  
...  
Keyword(s):  
Uv Irradiation ◽  
Gas Sensing ◽  
Zno Films ◽  
Schematic Diagram ◽  
Sensing Properties ◽  
Tof Sims ◽  
Gas Sensing Properties ◽  
Doped Zno ◽  
Mn Concentration ◽  
Mn Doped

Schematic diagram showing the 2D TOF SIMS overlays of Si+, Mn+and Zn+. The insert corresponds to the correlation between the sensing response and FMR signal as a function of Mn concentration when exposed to various gases.

scholarly journals The Effect of Noble Metals on Co Gas Sensing Properties of In2O3 Nanoparticles

2021 ◽  
Vol 11 (11) ◽  
pp. 4903
Author(s):  
JinAh Hwang ◽  
Hyunsung Jung ◽  
Hyo-Soon Shin ◽  
Dae-Sung Kim ◽  
Dong Soo Kim ◽  
...  
Keyword(s):  
Noble Metals ◽  
Au Nanoparticles ◽  
Gas Sensing ◽  
Pt Nanoparticles ◽  
Depletion Region ◽  
Gas Concentration ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
In2o3 Nanoparticles ◽  
Co Gas

Three types of In2O3 nanoparticles decorated with Au, Pd and Pt nanoparticles, respectively, were synthesized by thermal decomposition method, and the effects of metal nanoparticles on their phase, microstructure, chemical state, carrier types were investigated with XRD, SEM/TEM, and XPS. Additionally, sensing properties to CO gas, such as sensitivity, etc., were examined with sensing apparatus. Au-decorated In2O3 nanoparticles exhibited the highest sensitivity to CO gas, with S = 5.59 at a 10 ppm CO gas concentration at 50 °C compared to Pd or Pt-decorated In2O3 nanoparticles. This can be interpreted as a much higher adsorption of oxygen molecules on the In2O3 surface due to the high oxygen vacancies in the In2O3 lattice, which generates an electron depletion region in the outer layer of In2O3 to sharply increase the resistance or the spill-over effect due to Au nanoparticles on In2O3. Au nanoparticles were observed in the TEM images and confirmed by XPS analysis.

scholarly journals P1.7.3 Non-aqueous synthesis of In2O3 nanoparticles and its NO2 gas sensing properties

2012 ◽  
Author(s):  
M. Z. Ahmad ◽  
W. Wlodarski ◽  
J. Chang ◽  
E. R. Waclawik ◽  
A. Z. Sadek ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Aqueous Synthesis ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
In2o3 Nanoparticles

Study of the optical and gas sensing properties of In2O3 nanoparticles synthesized by rapid sonochemical method

2020 ◽  
Vol 31 (20) ◽  
pp. 17474-17481
Author(s):  
Hafeez Ullah ◽  
Zain H. Yamani ◽  
Ahsanulhaq Qurashi ◽  
Javed Iqbal ◽  
Kashif Safeen
Keyword(s):  
Gas Sensing ◽  
Sonochemical Method ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
In2o3 Nanoparticles
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