Synthesis and characterization of flower-like ZnSe nanostructured thin films by chemical bath deposition (CBD) method

Bakiyaraj, G.; Dhanasekaran, R.

doi:10.1007/s13204-012-0075-y

Cited by 38 publications

(10 citation statements)

References 21 publications

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“…These strong emissions can be assigned to the excitonic emission [7]. In fact the PL band of ZnSe NP is usually observed around 486 nm for the transition across the band gap and small peaks above 500 nm for defects related emission [7]. The broadening and blue shift of the emission peak towards the lower wavelength as observed in the NC indicate that the particle size of ZnSe in the NC is very small.…”

Section: Results and Disscussionsmentioning

confidence: 95%

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Modified properties of Fe3O4 nanoparticles on incorporation of optically active ZnSe

Roychowdhury

Das

Pati³

et al. 2014

AIP Conference Proceedings

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A facile two-steps method for preparation of the Fe 3 O 4 /ZnSe nanocomposite at room temperature has been reported. The prepared samples were characterized by XRD, SQUID VSM, Mössbauer, UV-vis and Photoluminescence (PL) spectroscopy. Zero-field-cooled (ZFC) and field-cooled (FC) measurements show irreversibility up to room temperature and a superparamagnetic blocked state below 250 K. Mössbauer spectra at RT shows typical relaxed sextet pattern with a superparamagnetic doublet. PL spectra show strong near band edge emission and some weak peaks related to different defects levels.

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Section: Results and Disscussionsmentioning

confidence: 95%

“…for pristine ZnSe and NC respectively. These strong emissions can be assigned to the excitonic emission [7]. In fact the PL band of ZnSe NP is usually observed around 486 nm for the transition across the band gap and small peaks above 500 nm for defects related emission [7].…”

Section: Results and Disscussionsmentioning

confidence: 98%

Modified properties of Fe3O4 nanoparticles on incorporation of optically active ZnSe

Roychowdhury

Das

Pati³

et al. 2014

AIP Conference Proceedings

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“…Few drops of ammonia solution were added to get a transparent mixture. 1 M NaOH solution was further added into the mixtures to adjust the pH and to achieve precipitation of ZnSe nanoparticles [15]. Finally, the product was separated by centrifugation and washed with distilled water and ethanol several times.…”

Section: Synthesis Of Znse Nanoparticlesmentioning

confidence: 99%

Effect of nanocrystals concentration on optical and luminescent properties of PVK:ZnSe nanocomposites

Sharma

Kumar

Verma

2018

Materials Science-Poland

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This work presents a systematic study of the effect of ZnSe nanocrystals (NCs) concentration on the optical and luminescent properties of poly N-vinylcarbazole (PVK) polymer nanocomposites. The ZnSe nanocrystals were synthesized by a simple coprecipitation chemical route, while PVK:ZnSe nanocomposite films were fabricated using the spin coating technique. The samples were characterized by XRD, TEM, SEM, UV-Vis and fluorescence techniques. The X-ray diffraction and TEM studies confirmed the particle size, microstructure and spherical shape of the synthesized nanocrystals. The ZnSe nanocrystals in PVK caused a decrease in optical gap with increasing concentration of nanocrystals. The emission spectra exhibited augmentation in intensity up to 70 wt.% of nanoparticles while further addition resulted in a decrease in luminescence. The structure-property relationships obtained for the present system are important for developing low cost illumination devices.

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“…Thin films are crystalline or noncrystalline materials developed twodimensionally on the surface of a substrate by physical or chemical methods. They play a vital role in nearly all electronic and optical devices [6]. They have been used as electroplated films for decoration and protection [7].…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

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Ikhioya

Okoli

Ekpunobic

2020

Asian J. Nanosci. Mater.

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In this research study, the growth of SnZnSe thin film materials was carried out using the cationic precursor, which was an aqueous solution of 0.035 mol solution of ZnSO4.7H2O while the anionic precursor was 0.1 mol solution of selenium metal powder was prepared by dissolving with 4 mL of hydrogen chloride (HCl). The XRD of the films deposited on FTO substrates at different dopant concentration 1%, 2%, 3% and 4% showed the reflection peaks at (220), (221), (300), (310), (311), (222) and (320) with the lattice constant of a=7.189 Ǻ. The SEM results revealed the random distribution of tiny nanograins on the substrate, the nano-grains were observed to agglomerate due to the presence of large free energy characteristics of small particles. The optical bandgap of the deposited material enhanced from 2.0-2.3 eV as the dopant concentration increased.

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Synthesis and characterization of flower-like ZnSe nanostructured thin films by chemical bath deposition (CBD) method

Cited by 38 publications

References 21 publications

Modified properties of Fe3O4 nanoparticles on incorporation of optically active ZnSe

Modified properties of Fe3O4 nanoparticles on incorporation of optically active ZnSe

Effect of nanocrystals concentration on optical and luminescent properties of PVK:ZnSe nanocomposites

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