Structural, optical and electrical properties of chemically deposited nonstoichiometric copper indium diselenide films

Bari, R. H.; Patil, L.A.; Patil, Pradip

doi:10.1007/bf02914085

Cited by 17 publications

(4 citation statements)

References 23 publications

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“…Figure 5 shows the variation of absorbance with wavelength of nanocrystalline ZnO powder samples. The band gap energies of the samples were calculated from the absorption edges of the spectra [27], which were observed to be slightly varying from 3.36 to 3.42 eV. These values nearly match the reported value of 3.37 eV.…”

Section: Optical Absorptionsupporting

confidence: 64%

Effect of precursor concentrations on structural, microstructural and optical properties of nanocrystalline ZnO powder synthesized by an ultrasonic atomization technique

Patil¹,

Bari²,

Shinde³

et al. 2010

Phys. Scr.

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In this paper, we report on the effect of concentration on nanocrystalline ZnO powder prepared by an ultrasonic atomization technique, which is a promising method because of its simplicity, inexpensiveness and safety. The morphology and size of ZnO nanocrystallites associated with nanopowder were characterized by transmission electron microscopy (TEM). It revealed that the powder consisted of nanocrystallites with grain sizes between 8 and 15 nm. These values match the grain sizes (8–14 nm) calculated from x-ray diffraction (XRD). The XRD and TEM studies of ZnO nanopowder showed that crystallite sizes were observed to increase with an increase in the concentration of solution. The d values calculated from electron diffraction patterns (TEM) of ZnO nanopowder were also in agreement with the d values calculated from XRD. The synthesized nanopowders exhibited a direct band gap (Eg) in the range of 3.36–3.42 eV.

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Section: Optical Absorptionsupporting

confidence: 64%

Effect of precursor concentrations on structural, microstructural and optical properties of nanocrystalline ZnO powder synthesized by an ultrasonic atomization technique

Patil¹,

Bari²,

Shinde³

et al. 2010

Phys. Scr.

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“…These CuInSe 2 nanoparticles exhibit a variety of shapes. Both XRD and TEM analyses reveal that the synthesis temperature plays a key role for size control, size distribution and phase purity of CuInSe 2 products [26,27].…”

Section: Structural Analysismentioning

confidence: 99%

Growth and characterization of chalcopyrite CuInSe2 nanoparticles

et al. 2014

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This work presents growth and characterization of copper indium diselenide (CuInSe 2 ) nanoparticles with controllable size synthesized by a simple solvothermal process. Salts of copper(I), indium(III) and selenium powder have been used as starting precursors and ethylenediamine is used as a solvent. Nanoparticles synthesized at different temperatures have been analyzed using X-ray diffraction and transmission electron microscopy. Particle size has been calculated by dynamic light scattering. Surface morphology has also been studied by scanning electron microscopy. Optical properties of CuInSe 2 provide band gap in the range of 0.94-1.05 eV, which are nearly close to optimal intensity for solar radiation suitable for solar cell devices.

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“…3.4 Optical absorption Figure 4 shows variation of absorbance with wavelength of nanocrystalline TiO 2 thin films in the range of 300-600 nm. The bandgap energy of the samples was calculated from the absorption edges of the spectra (Bari et al 2006). The bandgap was observed to be slightly varying from 3•28 to 3•29 eV.…”

Section: Microstructure and Electron Diffraction Using Temmentioning

confidence: 99%

Effect of variation of precursor concentration on structural, microstructural, optical and gas sensing properties of nanocrystalline TiO2 thin films prepared by spray pyrolysis techniques

Patil¹,

Suryawanshi²,

Pathan³

et al. 2013

Bull Mater Sci

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The objective of the present paper is to investigate the effect of variation of precursor concentration (0•01, 0•02 and 0•03 M) on the structural, microstructural, optical and gas sensing properties of TiO 2 thin films. Titanium dioxide (TiO 2) films were prepared from aqueous solution of titanium chloride (TiCl 3 •6H 2 O, 99•9% pure, Merck made, Germany) onto the glass substrates heated at a temperature of 350 • C by the spray pyrolysis technique. Bandgap energy of the films vary from 3•28 to 3•29 eV. X-ray diffraction shows that films to be nanocrystalline with anatase phase having tetragonal crystal structure. The d values calculated from electron diffraction patterns (TEM) were observed to be matching with d values calculated from XRD. Transmission electron microscopy (TEM) reveled that grain sizes were observed to increase (10-29 nm) with an increase in the concentration of precursor solution. The gas sensing performance of the films was tested. Keywords. Spray pyrolysis; nanocrystalline TiO 2 ; electron diffraction pattern.

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Structural, optical and electrical properties of chemically deposited nonstoichiometric copper indium diselenide films

Cited by 17 publications

References 23 publications

Effect of precursor concentrations on structural, microstructural and optical properties of nanocrystalline ZnO powder synthesized by an ultrasonic atomization technique

Effect of precursor concentrations on structural, microstructural and optical properties of nanocrystalline ZnO powder synthesized by an ultrasonic atomization technique

Growth and characterization of chalcopyrite CuInSe2 nanoparticles

Effect of variation of precursor concentration on structural, microstructural, optical and gas sensing properties of nanocrystalline TiO2 thin films prepared by spray pyrolysis techniques

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