Physical investigations on MoO3 sprayed thin film for selective sensitivity applications

Tin-doped nickel oxide thin films have been successfully prepared by spray pyrolysis technique on glass substrates at 460°C. The effects of tin doping on structural, optical, and electrical properties were investigated. X-ray diffraction pattern reveals that all prepared thin films have cubic structure with (111) preferred orientation. The surface topography of these films was performed by atomic force microscopy. Optical measurements show a high transparency in the visible range around 95%. The optical band gap Eg decreases with Sn content from 3.633 to 3.54 eV. PL measurements show some bands transition which shift irregularly with Sn doping. Finally, the electric conductivity of NiO thin film was investigated through the impedance spectroscopy measurements in the frequency range 5 Hz-13 MHz at various temperatures. These measurements show a thermally activation of the electric. AC conductivity of NiO thin films is investigated through Jonscher law. Also, from these measurements, dielectric parameters were calculated.

show abstract

“…As NiO is a direct semiconductor transition, optical band gap can be deduced by using the following relation [43][44][45] …”

Section: ) Band Gap Energy Calculationmentioning

confidence: 99%

Optical, Physical, Chemical and Electrical Properties of Nickel Oxide Sprayed Thin Films under Tin Doping Effects

Amor¹,

Hamzaoui²,

Boukhachem³

et al. 2015

Advances in Ceramic Science and Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

“…Furthermore, this method can be selected for film production of large area with size grain controllable by controlling the doping concentration. Also, this technique leads to a large production area and it permits also the formation of thin films with possible control of oxygen vacancy by means of the use of both appropriate precursors and postannealing treatments in air [12][13][14][15].…”

Section: Methods Of Preparation and Characterization Techniquesmentioning

confidence: 99%

Magnetic Properties of Hausmannite Thin Films

Petkova¹

2017

Modern Technologies for Creating the Thin-Film Systems and Coatings

View full text Add to dashboard Cite

The magnetic properties of hausmannite thin films are investigated in this chapter. The Verdet constant and angle of Faraday rotation are determined. The magnetic anisotropy of Mn 3 O 4 is explained by the measurement of the zero-field cooled (ZFC) and field cooled (FC) curves. This experiment is connected with the presentation of the ferromagnetic to superparamagnetic transition of the hausmannite.

show abstract

“…Using grain size values (table 5), the dislocation density δ dis defined as the imperfection in crystal has been calculated using the Williamson and Smallman's formula [38]:…”

Section: Structural Analysesmentioning

confidence: 99%

Effect of europium content on physical properties of In2O3 thin films for sensitivity and optoelectronic applications

et al. 2016

View full text Add to dashboard Cite

In 2 O 3 : Eu thin films were successfully grown by spray pyrolysis. XRD studies showed that the films had In 2 O 3 cubic structure with (004) preferential orientation and best crystal properties at 1.5% Eu doping level. The optical band gap energy decreased with Eu content around 4.1 eV. Urbach energy was of the order of 278 meV, it decreased with Eu content which indicates a decrease in the defects by doping. The dispersion of the refractive index was discussed. Raman spectroscopy showed the band positions corresponding to In 2 O 3 cubic phase with a small shift related to europium incorporation within In 2 O 3 matrix. PL measurements showed a large band which was located at 410 nm and related to the band-to-band transitions and other bands related to impurity levels. Finally, the electric conductivity was investigated depending on the effect of temperature. Activation energy was found to range from 45 to 60 meV for films which were prepared with 1% Eu content.

show abstract

Physical investigations on MoO3 sprayed thin film for selective sensitivity applications

Cited by 90 publications

References 58 publications

Optical, Physical, Chemical and Electrical Properties of Nickel Oxide Sprayed Thin Films under Tin Doping Effects

Optical, Physical, Chemical and Electrical Properties of Nickel Oxide Sprayed Thin Films under Tin Doping Effects

Magnetic Properties of Hausmannite Thin Films

Effect of europium content on physical properties of In2O3 thin films for sensitivity and optoelectronic applications

Contact Info

Product

Resources

About