Optical properties of Al-CdO nano-clusters thin films

“…CdO is a n-type semiconductor with band gap in the range of 2.2-2.8 eV [9]. Many researchers studied the optoelectronic properties of CdO doping with different metallic ions Indium [10], Aluminum [11], Gallium [12] and Manganese [13]. The effect of Tin doping on the physical properties of CdO thin films has already been reported by a few researchers.…”

Section: Introductionmentioning

confidence: 99%

A study of Tin doping effects on physical properties of CdO thin films prepared by sol–gel spin coating method

Thirumoorthi

Prakash

2016

Journal of Asian Ceramic Societies

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Transparent conducting Tin doped Cadmium oxide thin films were prepared by sol-gel spin coating method with different Sn concentrations. X-ray diffraction analysis reveals the polycrystalline nature of the Cadmium oxide (CdO) with cubic structure and show preferential orientation along (111) plane. The surface morphology of prepared films was analyzed by SEM and surface roughness variations analyzed by water contact angle measurement. The EDX spectra confirmed the presence of Cd, Sn and O elements in the films. The blue shift of energy gap from 2.42 to 2.96 eV is explained by Burstein-Moss effect. The presents of functional groups and the chemical bonding are confirmed by FTIR spectra. The minimum electrical resistivity (1.12 × 10 −4 cm) and maximum carrier concentration (9.94 × 10 21 cm −3) was obtained for 5% of Sn doped CdO thin film.

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“…The prepared gel was dropped onto the cleaned substrates, the films were rotated at 1000 rpm for 30 min, and dried at 150 °C. After repeating the spin coating drying cycles, the films were annealed at 300–500 °C in air (Yahia et al ., 2013).…”

Section: Testing the Formula On Cubic Nanomaterilasmentioning

confidence: 99%

Developing a method for the evaluation of dislocation parameters from the Rietveld refinement procedure

2016

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In this investigation, the ability of Rietveld refinement method was used to simultaneously refine the structure and microstructure and evaluate the linear defects of cubic crystals. To do this, the basis of Stephans theory, about the anisotropic strain broadening, was developed and the values of dislocation density as well as the fraction of dislocation types were estimated. The reliability of this procedure was checked by selecting four different nanocrystaslline samples and evaluating the microstructure of these materials. Finally, the results were compared with those extracted from the whole powder pattern modeling method. Good agreement was achieved between the results of two methods.

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Optical properties of Al-CdO nano-clusters thin films

Cited by 52 publications

References 35 publications

Structural and optical properties of Ga-doped CdO nanocrystalline thin films

Structural and optical properties of Ga-doped CdO nanocrystalline thin films

A study of Tin doping effects on physical properties of CdO thin films prepared by sol–gel spin coating method

Developing a method for the evaluation of dislocation parameters from the Rietveld refinement procedure

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