Hybrid organic–inorganic of ZnS embedded PVP nanocomposite film for photoluminescent application

Ummartyotin, S.; Bunnak, N.; Juntaro, J.; Sain, Mohini; Manuspiya, Hathaikarn

doi:10.1016/j.crhy.2012.09.008

Cited by 35 publications

(16 citation statements)

References 20 publications

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“…It also have been reported the synthesis of ZnO nanorods and nanoparticles [117,139] , ZnS nanoparticles [132] , CdS nanorods [107] , ultrafine SiO 2 nanoparticles [124] , In 2 O 3 nanorods [116] , In(OH) 3 nanocubes to nanorods [110] using PVP to prevent particle aggregation and to control the average particle size and shape. Small photoelectric nanodevices can be fabricated from ZnO nanorods, whose grain size and morphology can be adjusted by addition of PVP [117] .…”

Section: Optical and Electrical Applicationsmentioning

confidence: 97%

“…The polymer maintains the blue photoluminescent effect of the nanoparticles [132] . Semiconductive indium oxide nanorods have a wide bandgap (direct bandgap around 3.6 eV at room temperature) and are mainly used in solar cells, field-emission displays, lithium-ion batteries, nanoscale biosensors, gas sensors, optoelectronics and photocatalysis.…”

Section: Optical and Electrical Applicationsmentioning

confidence: 99%

See 1 more Smart Citation

Poly(vinylpyrrolidone) – A Versatile Polymer for Biomedical and Beyond Medical Applications

Teodorescu¹,

Bercea²

2015

Polymer-Plastics Technology and Engineering

371

237

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The high versatility of poly(vinylpyrrolidone) (PVP) can be explained by its diverse properties including its solubility in water and in a broad range of liquid media, high chemical and thermal resistance, and unique wetting, binding, and film-forming properties. Thanks to biocompatibility, absence of toxicity and high capacity to form interpolymer complexes, PVP is widely used for designing materials for different applications, such as biomaterials for medical and nonmedical uses. This review summarizes a vast diversity of applicative examples showing the tremendous opportunities for future research and developments of PVP based biomaterials.

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Section: Optical and Electrical Applicationsmentioning

confidence: 97%

Section: Optical and Electrical Applicationsmentioning

confidence: 99%

Poly(vinylpyrrolidone) – A Versatile Polymer for Biomedical and Beyond Medical Applications

Teodorescu¹,

Bercea²

2015

Polymer-Plastics Technology and Engineering

371

237

View full text Add to dashboard Cite

show abstract

“…Another H 2 O adsorption peak at 1,635 cm -1 is due to H-OH bending vibration of water adsorbed in pores of sample [39][40][41]. The band located at 2,341 cm -1 is attributed to C-O stretching modes arising from the absorption of atmospheric CO 2 on the surface [43]. It can be seen from the images that the ZnS particles are distributed evenly and discretely across the matrix for ZnS:SiO 2 molar ratios lower than 50 % (shown in the inset of Fig.…”

Section: Structural Propertiesmentioning

confidence: 95%

Compositional evolution and surface-related phenomena effects in ZnS–SiO2 nanocomposite films

2014

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ZnS-Silica nanocomposite thin films were prepared by the sol-gel method. The effect of ZnS:SiO 2 molar ratio on structural, morphological and optical properties of thin films was characterized by XRD, FTIR, SEM, AFM, UV-Vis and PL spectroscopy. XRD patterns indicate the phase structure of ZnS particles embedded in SiO 2 composite thin films is hexagonal while hexagonal-cubic mixed phase with dominant hexagonal structure is observable beyond 40:60 ZnS:SiO 2 molar ratio. SEM and AFM images revealed that the morphology of the samples was strongly affected by variation in composite ratio. According to fractal and power spectral density analyses, at lower silica mixing compositions in 50:50 molar ratio, the composite films represented superior fractal dimension and roughness parameter. The optical transmittance of the films in visible region decreases with ZnS concentration. The pertinent optical constants and single-oscillator parameters along with Urbach tail were determined and discussed. The optical band gap descended gradually (from 3.98 to 3.94 eV) with increasing ZnS content. PL study showed that with increasing ZnS molar ratio, the emission intensity enhances generally.

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“…electronics. [8][9][10][11] Cube et al 12 discussed pristine tris-(8-hydroxyquionoline)aluminum(Alq 3 /ZnO composite thin films that enhance the luminescence intensity for organic light emitting diodes. Zhang et al 13 investigated a new class of composite films, such as (ZnO QDs)-poly(methyl methacrylate) (PMMA) which showed high UV absorbing capability.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Imine-Bearing ZnO Nanoparticle Thin Films and Characterization of Their Structural, Morphological and Optical Properties

Kaur¹,

Sharma²,

Kim³

et al. 2015

j nanosci nanotechnol

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We are presenting the first report on the fabrication of imine-bearing ZnO nanoparticle thin films grown on Corning glass by spin coating. The sol was prepared by dissolving imine-bearing ZnO nanoparticles in dimethylsulfoxide (DMSO). The thickness of the films was manipulated to be 125-200 nm. The X-ray diffraction (XRD) analysis showed hexagonal wurtzite structure of imine-bearing ZnO nanoparticles thin films with a (002) preferential orientation. The stretching of chemical bonds of the imine linkage and Zn-O in imine-bearing ZnO nanoparticle thin films was confirmed by Fourier transform infrared spectroscopy (FTIR). The grain size of the films increased with increasing the thickness of the films due to the number of coatings and subsequently dried at 200 °C. The transmittance of imine-bearing ZnO nanoparticle thin films was observed to be ≥94%, which was in close agreement to pure ZnO thin films in the visible region. The bandgap of imine-bearing ZnO nanoparticle thin films (3.04 eV), evaluated from Tauc's plot, was observed to be lower than that of pure ZnO (3.21 eV), which is attributed to the interaction of the ZnO nanoparticles with the imine receptor.

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Hybrid organic–inorganic of ZnS embedded PVP nanocomposite film for photoluminescent application

Cited by 35 publications

References 20 publications

Poly(vinylpyrrolidone) – A Versatile Polymer for Biomedical and Beyond Medical Applications

Poly(vinylpyrrolidone) – A Versatile Polymer for Biomedical and Beyond Medical Applications

Compositional evolution and surface-related phenomena effects in ZnS–SiO2 nanocomposite films

Synthesis of Imine-Bearing ZnO Nanoparticle Thin Films and Characterization of Their Structural, Morphological and Optical Properties

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