Thermally stimulated current analysis of Zn1−xCdxO alloy films

Aybek, Ahmet Şenol; Baysal, Nihal; Zor, Muhsin; Turan, Evren; Kul, Metin

doi:10.1016/j.jallcom.2010.11.077

Cited by 17 publications

(1 citation statement)

References 52 publications

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“…Hence, it is possible to modify the physical properties of ZnO on mixing with CdO. Most of the recent works have been focused on the preparation of Cd x Zn 1− x O alloys [7, 8]. Cd x Zn 1− x O alloy would be a good candidate because of the small direct bandgap of CdO, which shows a red shift of the luminescence peak with respect to that of ZnO [9].…”

Section: Introductionmentioning

confidence: 99%

The influence of Cd(ZnO) on the structure, optical and thermal stabilities of polyvinyl chloride nanocomposites

Mahmoud

Al-Ghamdi

2011

Polymer Composites

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The doping of nanomaterials into polymers creates novel nanocomposite materials with desired properties. The influence of these nanoscale fillers on the structure and optical and thermal stabilities of polymer are the crucial clue to introduce these novel nanocomposites to service life applications. In this work, cadmium doped zinc oxide (Cd 0.5 Zn 0.5 O) nanopowders with a uniform particle size of around 10 nm have been synthesized, purified, and blended with polyvinyl chloride (PVC) by solution mixing to prepare PVC/ Cd 0.5 Zn 0.5 O nanocomposite films. The structure and morphology of PVC/Cd 0.5 Zn 0.5 O nanocomposite films have been characterized using transmission electron microscopy. The results showed that as the amount of nanoscale fillers increases the nanocrystals tend to aggregates and the size of these aggregates increases from 25 to 100 nm. The UV-vis spectra showed that the prepared PVC/Cd 0.5 Zn 0.5 O nanocomposite films are highly transparent. The transparency at higher concentrations slightly decreased as a consequence of light scattering due to large aggregates. The thermogravimetric results showed that a small amount of Cd 0.5 Zn 0.5 O nanopowders (<0.6 wt%) without further surface modification can greatly improve the thermal stability of PVC.

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Section: Introductionmentioning

confidence: 99%

The influence of Cd(ZnO) on the structure, optical and thermal stabilities of polyvinyl chloride nanocomposites

Mahmoud

Al-Ghamdi

2011

Polymer Composites

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Synthesis and characterization of Cd_xZn₁₋_xO nanoparticles‐doped aryl poly ether ether ketone for novel application potentials

Mahmoud

Shirbeeny

Al-Ghamdi

et al. 2011

J of Applied Polymer Sci

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The influence of polymer on the structure, optical, electrical, and thermal properties of nanoscale fillers is a crucial clue to introduce these novel nanocomposites to service life applications. In the present work, different compositions of cadmium‐doped zinc oxide (CdxZn1−xO) nanopowders, x = 0.1, 0.3, and 0.5, with a uniform particle size of around 8 nm have been synthesized. A fixed amount, 1 wt %, of the prepared nanopowders was blended with aryl poly ether ether ketone (PEEK) by solution mixing to prepare PEEK/CdxZn1−xO nanocomposite films. The structure and morphology of CdxZn1−xO nanopowders and PEEK/CdxZn1−xO nanocomposite films have been characterized using transmission electron microscopy and X‐ray diffraction. The results showed that the particle size of nanoscale filler decreases from 10 nm to 5–7 nm when mixed with PEEK and these nanocomposites have amorphous structure. The thermogravitational analysis results show that a small amount of CdxZn1−xO nanopowders (1 wt %) without surface modification can greatly improve the thermal stability of PEEK. The UV–vis spectra showed that there is absorption peak at 284 nm due to interband π−π* electronic transition. This absorption peak gets shifted toward the longer wavelength region as the concentration of cadmium ions increase in the PEEK matrix. This red shift results in a decrease of the band energy gap. The electrical conductivity of PEEK/CdxZn1−xO nanocomposite films was increased as the cadmium ion increases. The results showed that PEEK/CdxZn1−xO nanocomposite films can be used in thermostat and/or fire alarm devices. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

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Investigation of the Structural, Optical, and Electrical Properties of ZnO/4‐Amino‐2‐Methylquinoline p–n Heterojunction by Spin‐Coating Method

Demir

2024

Physica Status Solidi (a)

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A p–n heterojunction diode is fabricated using a p‐type 4‐amino‐2‐methylquinoline (C10H10N2) on an n‐type ZnO film and its structural, optical, and electrical properties are investigated. First, a ZnO thin film is prepared on an ITO substrate by spin coating. Subsequently, this ZnO film is coated with a C10H10N2 film using the same method. X‐ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM), UV–vis spectroscopy, and current–voltage measurements are carried out on the prepared films. According to the XRD result, sharp peaks at 320.081, 340.488, and 360.548 are observed in the hexagonal phase of ZnO. At these angles, grain sizes of 15.308, 15.179, and 13.715 nm are calculated. The absorption peaks of electronic transitions π→π*, n→π*, and d→d* in the ZnO/C10H10N2 heterojunction film are observed. From the IV diagram, it can be seen that the heterojunction structure has a diode characteristic. From the IV data, the rectification factor is calculated to be 6.59 and its graph is drawn. With the Cheung method, ideality factor (n) = 2.87, series resistance (RS) = 1 MΩ, and shunt resistance (RSh) = 5 kΩ are found.

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Thermally stimulated current analysis of Zn1−xCdxO alloy films

Cited by 17 publications

References 52 publications

The influence of Cd(ZnO) on the structure, optical and thermal stabilities of polyvinyl chloride nanocomposites

The influence of Cd(ZnO) on the structure, optical and thermal stabilities of polyvinyl chloride nanocomposites

Synthesis and characterization of Cd_xZn₁₋_xO nanoparticles‐doped aryl poly ether ether ketone for novel application potentials

Investigation of the Structural, Optical, and Electrical Properties of ZnO/4‐Amino‐2‐Methylquinoline p–n Heterojunction by Spin‐Coating Method

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Thermally stimulated current analysis of Zn1−xCdxO alloy films

Cited by 17 publications

References 52 publications

The influence of Cd(ZnO) on the structure, optical and thermal stabilities of polyvinyl chloride nanocomposites

The influence of Cd(ZnO) on the structure, optical and thermal stabilities of polyvinyl chloride nanocomposites

Synthesis and characterization of CdxZn1−xO nanoparticles‐doped aryl poly ether ether ketone for novel application potentials

Investigation of the Structural, Optical, and Electrical Properties of ZnO/4‐Amino‐2‐Methylquinoline p–n Heterojunction by Spin‐Coating Method

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Synthesis and characterization of Cd_xZn₁₋_xO nanoparticles‐doped aryl poly ether ether ketone for novel application potentials