Structural, morphological, electrical and optical studies of Cr doped SnO2 thin films deposited by the spray pyrolysis technique

Gandhi, T.; Babu, R. Ramesh; Ramamurthi, K.

doi:10.1016/j.mssp.2012.07.008

Cited by 39 publications

(13 citation statements)

References 37 publications

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“…As mentioned about the absorption spectra, the decrease in the band gap can be ascribed to the formation of partial Cr x O y phases with the lower optical energy band gap compared with SnO 2 [51]. Such a decrease in the optical energy band gap for Crdoped SnO 2 nanostructures has also been reported by other researchers [52,53] and can be interpreted using equation (5) [54]…”

Section: Resultssupporting

confidence: 55%

Enhanced photocatalytic activity of $$\hbox {SnO}_{2}$$ NPs by chromium (Cr) concentration

Karimi

Haghighatzadeh

2019

Bull Mater Sci

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This study reports the synthesis of un-and chromium (Cr)-doped tin dioxide (SnO 2) nanoparticles (NPs) through chemical precipitation and their application for photodegradation of methylene blue dye. The obtained NPs were characterized by X-ray diffraction (XRD) analysis, transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy, elemental mapping and ultraviolet-visible (UV-Vis) spectroscopy. The TEM and XRD results demonstrated that the SnO 2 NPs are spherical and contain polycrystalline tetragonal crystals. UV-Vis spectra showed that increasing the concentration of the Cr dopant enhances the light absorption potential of the SnO 2 NPs. Finally, the findings of the photocatalytic experiments performed for 120 min in ultraviolet irradiation under ambient conditions revealed an improvement in the degradation efficiency of the SnO 2 NPs by Cr doping.

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Section: Resultssupporting

confidence: 55%

Enhanced photocatalytic activity of $$\hbox {SnO}_{2}$$ NPs by chromium (Cr) concentration

Karimi

Haghighatzadeh

2019

Bull Mater Sci

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“…Recently, binary transparent oxides of n-type and p-type TCO materials have been developed such as n-Zn 2 SnO 4 [7,8], n-MgIn 2 O 4 [9], n-CdSb 2 O 6 :Y [10], n-ZnSnO 3 [11], p-CuAlO 2 [12], p-CuGaO 2 [13], p-SrCu 2 O 2 [14], p-ZnO:(Ga, N) [15] and p-NiO : Li [16,17]. Therefore, the use of n-type and p-type TCOs in the fabrication of active elements in optoelectronic devices as transparent p-n junctions is possible [18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Bi-Doped SnO2 Transparent Conducting Thin Films Deposited By Spray Pyrolysis: Structural, Electrical, Optical And Photo-Thermoelectric Properties

Khademi

Bagheri–Mohagheghi

Shirpay

2021

Preprint

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In this research, light and heavy Bi-doped SnO2 thin films were prepared on glass substrates by spray pyrolysis technique. The effect of heavy doped-Bi on the structural, morphological, electrical, photo-thermo-electrical, optical properties of SnO2 films has been investigated. The Bi/Sn atomic ratios (x = [Bi/Sn]) were varied from 0 to 0.30 in the spray solution. X-ray diffraction analysis showed the formation of SnO2 tetragonal rutile structure in low doped deposited films and amorphous structure for heavy Bi-doped SnO2. Also, the SnO2-Bi2O3 binary thin films were formed for x= [Bi/Sn] =0.05. Scanning electron microscopy (SEM) images indicated that nanostructure of the condensed films has a rectangular-particle growth toward particle- spherical growth. The Hall effect measurements have shown n-type conductivity in all deposited films. The lowest sheet resistance of 39.3 MΩ/□ and highest carrier concentration of n=4.53 × 1018 cm−3 were obtained for the thin film deposited with x = 0.10. The maximum of the Seebeck coefficient (S)=325 μVK−1 and figure of merit (ZT) = 1.85 was obtained for the thin film deposited with x = 0.20. The average transmittance of films varied over the range of T=72%-84%. The band gap values of samples were obtained in the range of Eg=3.52–3.88 eV for direct band gap. From the photoconductivity studies, the sample prepared with x = 0.20 exhibited the highest photoconductivity among the SnO2: Bi thin films.

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“…Tin Oxide is an n-type semiconductor with wide band gap energy (Eg = 3.5-4 eV) [4]. Tin Oxide has a tetragonal structure.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Fe , Sb doping on the Structural Properties of SnO2 Powder. Comparative Study

Khoudro¹

2020

CMR

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Fe , Sb doped tin oxide transparent conducting powder were prepared by solid state reaction method. Structural properties of the samples were investigated as a function of various Fe , Sb doping levels (x=0.00-0.01-0.06). The results of x-ray diffraction have shown that the samples are polycrystalline structure in tetragonal phase with preferential orientations along the ( 110) for all samples.The relative intensities, distance between crystalline planes (d), crystallite size (D), dislocation density (ẟ) and lattice parameters (a), (c).

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Structural, morphological, electrical and optical studies of Cr doped SnO2 thin films deposited by the spray pyrolysis technique

Cited by 39 publications

References 37 publications

Enhanced photocatalytic activity of $$\hbox {SnO}_{2}$$ NPs by chromium (Cr) concentration

Enhanced photocatalytic activity of $$\hbox {SnO}_{2}$$ NPs by chromium (Cr) concentration

Bi-Doped SnO2 Transparent Conducting Thin Films Deposited By Spray Pyrolysis: Structural, Electrical, Optical And Photo-Thermoelectric Properties

The Influence of Fe , Sb doping on the Structural Properties of SnO2 Powder. Comparative Study

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