Growth and characterization of molybdenum doped ZnO thin films by spray pyrolysis

Swapna, R.; Kumar, M.C. Santhosh

doi:10.1016/j.jpcs.2012.11.003

Cited by 56 publications

(23 citation statements)

References 43 publications

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“…Finally, the conductivity in region IV (180-230°C) increases again, probably due to the dominant thermal activation and the desorption of oxygen species. For linear regions, the electrical conductivity of the films can be analyzed by the following relation [49,50] …”

Section: Optical and Electrical Characterizationmentioning

confidence: 99%

Effect of Sn doping on structural, optical, electrical and wettability properties of oriented ZnO nanorod arrays

Kumar

Nagaraja

2013

J Mater Sci: Mater Electron

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Herein we present a modified sol gel route for the one step fabrication of oriented ZnO nanorod arrays. The method is seed layer free, and nanorods directly attach to a substrate. We also present the effect of tin (Sn) content on the crystallinity, microstructural, optical and electrical properties of the ZnO nanorod arrays. Thermo gravimetric (TG) curves of gel precursors showed that most of the organic groups and other volatiles were removed at about 450°C. X-ray diffraction patterns confirmed that the films were polycrystalline in nature with (002) preferred orientation. The texture coefficient, grain size, dislocation density and lattice parameters of the ZnO arrays were determined. The SEM micrographs revealed that the undoped and 1 at.%Sn doped films were composed of nanorods and the concentration of 2 at.%Sn doping hindered the rod like structure growth and modulated into granular nature. UVvisible transmission spectroscopy indicated that the transparency of the films increased with Sn content. On Sn doping, the films also exhibited a red shift and slight shrinkage of band gap. The electrical studies revealed that 1 at.% of Sn doping enhanced electrical conduction in ZnO films and beyond that the distortion caused in the lattice reduced the conductivity. The contact angle of the ZnO nanostructures varied between 91°and 115°depending upon the Sn content. Therefore, 1 at.%Sn doping into ZnO nanorods improves the crystallinity, electrical conductivity and water contact angle.

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Section: Optical and Electrical Characterizationmentioning

confidence: 99%

Effect of Sn doping on structural, optical, electrical and wettability properties of oriented ZnO nanorod arrays

Kumar

Nagaraja

2013

J Mater Sci: Mater Electron

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show abstract

“…Its high optical transparency, high chemical stability under hydrogen plasma along with the relatively low deposition temperature make it a promising candidate in transparent electrodes, gas sensors, light emitting diodes (LEDs), laser systems, hetero-junction solar cells, liquid crystal displays (LCDs) and heat mirrors [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Enhancing the electrical parameters of ZnO films deposited using a low-cost chemical spray technique through Ta doping

Ravichandran¹,

Subha²,

Dineshbabu³

et al. 2016

Journal of Alloys and Compounds

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“…. This shifting in the peak position can be attributed to the change in the inter‐planar distance caused by the strain in the films generated by the incorporation of Mo 6+ ions into the CdS lattice .The strain is calculated using the formula

ϵ = \frac{β \cos θ}{4},

where ϵ is the strain, β is the full width at half maximum (FWHM) of the diffraction peak and θ is the Bragg's angle.…”

Section: Resultsmentioning

confidence: 99%

Realizing near stoichiometric and highly transparent CdS:Mo thin films by a low‐cost improved SILAR technique

Ravichandran¹,

Banu²,

Baneto

et al. 2015

Physica Status Solidi (a)

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Undoped and molybdenum doped CdS thin films were deposited on glass substrates using Improved Successive Ionic Layer Adsorption and Reaction (ISILAR) technique. The Mo doping level was varied from 0 to 15 at.% in steps of 5 at.%. The XRD analysis shows that all the films are polycrystalline with cubic structure and grow preferentially along the (111) plane. The crystallite size increases gradually with the increase in Mo doping level up to 10 at.% and decreases with further doping. The morphological studies reveal that Mo doping significantly affects the grains size. Qualitative and quantitative compositional analysis show that near stoichiometric undoped and Mo doped CdS thin films can be achieved using this ISILAR technique. All the films exhibit high transparency in the visible region with an average transmittance in the range of 85–95%.

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Growth and characterization of molybdenum doped ZnO thin films by spray pyrolysis

Cited by 56 publications

References 43 publications

Effect of Sn doping on structural, optical, electrical and wettability properties of oriented ZnO nanorod arrays

Effect of Sn doping on structural, optical, electrical and wettability properties of oriented ZnO nanorod arrays

Enhancing the electrical parameters of ZnO films deposited using a low-cost chemical spray technique through Ta doping

Realizing near stoichiometric and highly transparent CdS:Mo thin films by a low‐cost improved SILAR technique

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