Volume 27, Issue 2 (7-2019)
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Ghaleghafi E, Rahmani M. Fabrication, characterization and investigation of gas sensing properties of MoO3 thin films. www.ijcm.ir 2019; 27 (2) :475-486
URL: http://ijcm.ir/article-1-1281-en.html
URL: http://ijcm.ir/article-1-1281-en.html
Abstract: (2939 Views)
In this research, molybdenum oxide (α-MoO3) thin films were coated on glass substrates using spray pyrolysis technique. 0.05 M ammonium heptamolybdate tetrahydrate was used as precursor and deionized water as solvent. The effects of carrier gas pressure, during the spraying of the solution, on the structural, optical, morphological and gas sensing properties of thin films were studied. X-ray diffraction (XRD) pattern analysis showed preferred growth at (020) peak direction and the formation of alpha phase of molybdenum oxide. The most intensive peaks were observed in the XRD pattern of the sample prepared under the carrier gas pressure of 2 bar, which indicates better crystallization of the sample. In addition, Raman spectrum of this sample confirmed the XRD results. UV-Vis spectroscopy results showed that the sample prepared under the carrier gas pressure of 1.8 bar has the highest optical absorption and the lowest band gap (~ 3.48 eV). Scanning electron microscope (SEM) images showed the layer structure of samples. Moreover, gas sensor devices based on the prepared samples at different carrier gas pressures, were fabricated and their sensing performances were investigated. Results showed that, the work temperature (i.e. the lowest temperature with the highest gas response at the specified ethanol vapor concentration of 200 ppm) was 200 ºC and belongs to the sample prepared under the carrier gas pressure of 1.8 bar. Also, studying the effect of ethanol vapor concentration extent for this sample showed the increasing of sensitivity percent from 1.42 to 15.62 % for 100 to 1000 ppm ethanol vapor, respectively.
Keywords: molybdenum trioxide, spray pyrolysis, structural and optical properties, electron microscope, gas sensor.
References
1. [1] Qadri MU., "Tungsten oxide nanostructures and thin films for optical gas sensors", Universitat Rovira i Virgili; 2014.
2. [2] Liu Y., Feng P., Wang Z., Jiao X., Akhtar F., "Novel Fabrication and Enhanced Photocatalytic MB Degradation of Hierarchical Porous Monoliths of MoO3 Nanoplates", Scientific Reports 7 (2017) 1-12. [DOI:10.1038/s41598-016-0028-x]
3. [3] Liu Y., Yang S., Lu Y., Podval'naya NyV., Chen W., Zakharova GS., "Hydrothermal synthesis of h-MoO3 microrods and their gas sensing properties to ethanol", Applied Surface Science 359 (2015) 114-9. [DOI:10.1016/j.apsusc.2015.10.071]
4. [4] Mane AA., Moholkar AV., "Orthorhombic MoO3 nanobelts based NO2 gas sensor", Applied Surface Science 405 (2017) 427-40. [DOI:10.1016/j.apsusc.2017.02.055]
5. [5] Li Z., Song P., Yang Z., Wang Q., "In situ formation of one-dimensional CoMoO4/MoO3 heterojunction as an effective trimethylamine gas sensor", Ceramics International 44 (2018) 3364-3370. [DOI:10.1016/j.ceramint.2017.11.126]
6. [6] Cai L., McClellan CJ., Koh AL., Li H., Yalon E., Pop E., Zheng X., "Rapid Flame Synthesis of Atomically Thin MoO3 down to Monolayer Thickness for Effective Hole Doping of WSe2", Nano Letters 17 (2017) 3854-3861. [DOI:10.1021/acs.nanolett.7b01322]
7. [7] Wang Y., He R., Su M., Xie W., "Synthesis of the few layered two-dimensional molybdenum oxide atomic crystal. IOP Conference Series: Materials Science and Engineering", IOP Publishing 167 (2017). 12020-12027. [DOI:10.1088/1757-899X/167/1/012020]
8. [8] Wang Z., Madhavi S., Lou XW., "Ultralong α-MoO3 nanobelts: synthesis and effect of binder choice on their lithium storage properties", The Journal of Physical Chemistry C 116 (2012) 12508-12513. [DOI:10.1021/jp304216z]
9. [9] Sui L., Zhang X., Cheng X., Wang P., Xu Y., Gao S., Zhao H., Huo L., "Au-Loaded Hierarchical MoO3 Hollow Spheres with Enhanced Gas-Sensing Performance for the Detection of BTX (Benzene, Toluene, And Xylene) And the Sensing Mechanism", ACS applied materials & interfaces 9 (2017) 1661-1670. [DOI:10.1021/acsami.6b11754]
10. [10] Chiu H-C., Yeh C-S., "Hydrothermal synthesis of SnO2 nanoparticles and their gas-sensing of alcohol", The Journal of Physical Chemistry C 111 (2007) 7256-7259. [DOI:10.1021/jp0688355]
11. [11] Wang Y., Liu C., Wang L., Liu J., Zhang B., Gao Y., Sun P., Sun Y., Zhang T., Lu G., "Horseshoe-shaped SnO2 with annulus-like mesoporous for ethanol gas sensing application", Sensors and Actuators B: Chemical 240 (2017) 1321-1329. [DOI:10.1016/j.snb.2016.07.160]
12. [12] Mousavi-Zadeh S.H., Rahmani M.B., "synthesis and ethanol sensing characteristics of nanostructured MoO3: Zn thin films", Surface Review and Letters 25 (2018) 1850046. [DOI:10.1142/S0218625X18500464]
13. [13] Rahmani MB., Keshmiri SH., Yu J., Sadek AZ., Al-Mashat L., Moafi A., Latham K., Li Y. X., Wlodarski W., Kalantar-zadeh K., "Gas sensing properties of thermally evaporated lamellar MoO3", Sensors and Actuators B: Chemical 145 (2010) 13-19. [DOI:10.1016/j.snb.2009.11.007]
14. [14] Filipovic L., Selberherr S., Mutinati GC., Brunet E., Steinhauer S., Köck A., Teva J., Kraft J., Siegert J., Schrank F., "Methods of simulating thin film deposition using spray pyrolysis techniques", Microelectronic Engineering 117 (2014) 57-66. [DOI:10.1016/j.mee.2013.12.025]
15. [15] Mousavi-Zadeh S.H., Rahmani M.B., "Thin film growth and Zn doping of h-MoO3 hexagonal rods by hydrothermal technique", Modern Physics Letters B 30 (2016) 1650424. [DOI:10.1142/S0217984916504248]
16. [16] Li T., Zeng W., Zhang Y., Hussain S., "Nanobelt-assembled nest-like MoO3 hierarchical structure: Hydrothermal synthesis and gas-sensing properties", Materials Letters 160 (2015) 476-479. [DOI:10.1016/j.matlet.2015.08.031]
17. [17] Hosseinpour R, Izadifard M, Ghazi M., "Study of Structural and Optical Properties of Cu2ZnSnS4 Thin films Synthesized by Spin Sol-Gel.", Iranian Journal of Crystallography and Mineralogy 25 (2017) 635-646. [DOI:10.18869/acadpub.ijcm.25.3.635]
18. [18] Noori MS., Kompani A., Khorrami G., Korsand Zak A., "The Effect of calcination temperature on the structure properties of ZrO2 nanoparticles synthesized by modified sol gel ingelatin media", Iranian Journal of Crystallography and Mineralogy 24 (2017) 779-788.
19. [19] Khalate S., Kate R., Pathan H., Deokate R., "Structural and electrochemical properties of spray deposited molybdenum trioxide (α-MoO3) thin films", Journal of Solid State Electrochemistry (2017) 1-10. [DOI:10.1063/1.4980506]
20. [20] Jadkar V., Pawbake A., Waykar RV Jadhavar A., Mayabadi A., Date A., Late D., Pathan H., Gosavi S., Jadkar S., "Synthesis of orthorhombic-molybdenum trioxide (α-MoO3) thin films by hot wire-CVD and investigations of its humidity sensing properties", Journal of Materials Science: Materials in Electronics (2017) 1-7. [DOI:10.1002/pssa.201600717]
21. [21] Martínez HM., Torres J., López-Carreño LD., Rodríguez-García ME., "The Effect of Substrate Temperature on the Optical Properties of MoO3 Nano-crystals Prepared Using Spray Pyrolysis", Journal of Superconductivity and Novel Magnetism 26 (2012) 2485 2488. [DOI:10.1007/s10948-012-1692-0]
22. [22] Bouzidi A., Benramdane N., Tabet-Derraz H., Mathieu C., Khelifa B., Desfeux R., "Effect of substrate temperature on the structural and optical properties of MoO3 thin films prepared by spray pyrolysis technique", Materials Science and Engineering: B 97 (2003) 5-8. [DOI:10.1016/S0921-5107(02)00385-9]
23. [23] Hamze Saravi SM., Esmaeili Ghodsi F., "Investigation of the effect of drying method on the optical properties of nanostructured nickel oxide thin films", Iranian Journal of Crystallography and Mineralogy 22 (2014) 207-216
24. [24] Yang S., Liu Y., Chen T., Jin W., Yang T., Cao M., Liu S., Zhou J., Zakharova G., Chen W., "Zn doped MoO3 nanobelts and the enhanced gas sensing properties to ethanol", Applied Surface Science 393 (2017) 377-384. [DOI:10.1016/j.apsusc.2016.10.021]
25. [25] Bulakhe R., Lokhande C., "Chemically deposited cubic structured CdO thin films: Use in liquefied petroleum gas sensor", Sensors and Actuators B: Chemical 200 (2014) 245-250. [DOI:10.1016/j.snb.2014.04.061]
26. [26] Rabiei F., Izadifard M., Ghazi M., "Investigation of sensing properties of cobalt doped nickel-ferrite nanostructures synthesized by microwave method", Iranian Journal of Crystallography and Mineralogy 23(2016)689-698.
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