Promising molybdenum trioxide films for optically detectable gas sensor and solar cell applications

被引:7
作者
Ali, H. M. [1 ]
Shokr, E. Kh [1 ]
Elkot, Sh A. [1 ]
Mohamed, W. S. [1 ,2 ]
机构
[1] Sohag Univ, Fac Sci, Phys Dept, Sohag 82524, Egypt
[2] Jouf Univ, Coll Sci, Phys Dept, POB 014, Al Jouf, Sakaka, Saudi Arabia
关键词
MoO3-x thin films; thermal evaporation; x-ray diffraction; scanning electron microscope; chlorine gas; MOO3; THIN-FILMS; ALPHA-MOO3; OXIDATION;
D O I
10.1088/2053-1591/ab6ad0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Sub-stoichiometric molybdenum trioxide (MoO3-x) thin films were grown by thermal evaporation techniques on glass, single crystal silicon Si and Fluorine doped Tin Oxide (FTO) glass substrates with different thicknesses. It was found that, Oxygen vacancies play an important role on properties of MoO3-x films. The structural properties of these films were analyzed by means of x-ray diffraction, energy dispersive analysis of x-ray, scanning electron microscopy. The film surface uniformity and smoothness with thickness was tested using the surface roughness measurement for MoO3-x films grown on glass and FTO. The optical properties of all presented films were investigated using UV-vis-near-infrared (NIR) spectrophotometer Optical transmittance and reflection of MoO3-x film were measured in the wavelength range from 200 to 2500 nm. MoO3-x film with 500 nm thick was tested optically for gas sensor applications. The effect of chlorine exposure on the optical transmittance of MoO3-x film with 500 nm thick deposited on glass was studied. Transmittance degradation as increasing the period of exposure was observed, indicating to the high sensitivity of MoO3-x to chlorine gas. The electrical resistivity and Seebeck coefficient of MoO3-x film with 500 nm thick were measured. Low resistivity (similar to 10(-3) Omega.cm) and high transmittance (similar to 78%) in the visible spectrum of the film of 100 nm thick deposited on FTO coated glass substrate recommended it to be promising as transparent conductive electrode for solar cell.
引用
收藏
页数:13
相关论文
共 37 条
[1]  
Ali HM, 2013, OPTOELECTRON ADV MAT, V7, P207
[2]   Structural and optical properties of electron-beam evaporated Al2O3-doped V2O5 thin films for various applications [J].
Ali, H. M. ;
Hakeem, A. M. Abdel .
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2010, 207 (01) :132-138
[3]   Characterization of n and p-type (SnO2)x(ZnO)1-x nanoparticles thin films [J].
Ali, Hazem Mahmoud ;
Hakeem, Ahmed Mohamed Abdel .
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS, 2015, 72 (01)
[4]   Role of substrate temperature on MoO3 thin films by the JNS pyrolysis technique for P-N junction diode application [J].
Balaji, M. ;
Chandrasekaran, J. ;
Raja, M. .
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2016, 43 :104-113
[5]   Detecting gases with light: a review of optical gas sensor technologies [J].
Bogue, Robert .
SENSOR REVIEW, 2015, 35 (02) :133-140
[6]   Structural, optical, vibrational and photoluminescence studies of Sn-doped MoO3 sprayed thin films [J].
Boukhachem, A. ;
Kamoun, O. ;
Mrabet, C. ;
Mannai, C. ;
Zouaghi, N. ;
Yumak, A. ;
Boubaker, K. ;
Amlouk, M. .
MATERIALS RESEARCH BULLETIN, 2015, 72 :252-263
[7]   Physical investigations on MoO3 sprayed thin film for selective sensitivity applications [J].
Boukhachem, A. ;
Bouzidi, C. ;
Boughalmi, R. ;
Ouerteni, R. ;
Kahlaoui, M. ;
Ouni, B. ;
Elhouichet, H. ;
Amlouk, M. .
CERAMICS INTERNATIONAL, 2014, 40 (08) :13427-13435
[8]   Characterization of Molybdenum Oxide Thin Films Grown by Atomic Layer Deposition [J].
Dai, Tianjun ;
Ren, Yixuan ;
Qian, Lingxuan ;
Liu, Xingzhao .
JOURNAL OF ELECTRONIC MATERIALS, 2018, 47 (11) :6709-6715
[9]   Electrochromics for smart windows: Oxide-based thin films and devices [J].
Granqvist, Claes G. .
THIN SOLID FILMS, 2014, 564 :1-38
[10]   Integration of plasmonic and amorphous effects in MoO3-x spheres for efficient photoelectrochemical water oxidation [J].
Jin, Lili ;
Zheng, Xusheng ;
Liu, Wei ;
Cao, Linlin ;
Cao, Yuanjie ;
Yao, Tao ;
Wei, Shiqiang .
JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (24) :12022-12026