Structural, morphological and optical studies of Ag-doped ZnO nanoparticles synthesized by simple solution combustion method

Saravanan, S.; Silambarasan, M.; Soga, Tetsuo

doi:10.7567/jjap.53.11rf01

Cited by 19 publications

(12 citation statements)

References 45 publications

(48 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Raman spectra recorded for ZnNiO samples are shown in Figure 7 and all the usual Raman peaks are appropriately marked. The positions of the marked Raman peaks in ZnNiO are generally in agreement with the available literature [30,33,34]. The presence of all the expected Raman modes in the figure indicates conservation of wurtzite phase in ZnNiO.…”

Section: Resultssupporting

confidence: 88%

“…A successful incorporation of Ni dopant in the nanocrystalline ZnO particles can also make them deployable in varisters, as battery electrode, as oxidative catalytic thin-films, super-capacitor electrodes, and so on [25][26][27][28]. Additional synthesis-dependent variables, such as the level of oxygen vacancies and higher dopant-to-dopant near-neighbor interactions, also play a significant role in the enhancement of optoelectronic and opto-spintronic properties of TM doped metal oxides [13,18,[29][30][31]. A steep decrease in ferromagnetic behavior of ZnNiO was observed on increasing the Ni concentrations beyond 15% due to anti-ferromagnetic (AFM) ordering of Ni 2+ ions [17,31].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structural and Optical Characteristics of Highly UV-Blue Luminescent ZnNiO Nanoparticles Prepared by Sol–Gel Method

et al. 2020

View full text Add to dashboard Cite

A simple single pot sol–gel method is used to prepare ZnNiO nanoparticles at assorted Ni doping levels, 1, 3, 7 and 10 wt.%. Structural and optical properties of nanoparticles are studied by X-ray diffraction (XRD), UV–visible diffuse reflection spectroscopy (DRS), photoluminescence (PL) measurements, scanning electron microscopy (SEM), μ-Raman and X-ray photoelectron-spectroscopy (XPS). A single substitutional solid solution phase is detected in the wurtzite ZnNiO nanoparticles at various doping levels. XRD peak splitting and shifting is ascribed to reduced wurtzite character and presence of crystalline strain in nanoparticles at higher level of Ni doping. The Kubelka-Munk function of DRS data reveals the presence of the Burstein-Moss effect in the optical absorption of ZnNiO nanoparticles. Photoluminescence studies show intense UV-blue emission from ZnNiO nanoparticles. The UV PL also exhibits the Burstein-Moss blue shift in the ZnNiO luminescence. Raman analyses also confirms the wurtzite structure of ZnNiO nanoparticles; however, crystal structural defects and bond stiffness increase with Ni doping. The optical and structural studies presented in this work are pointing towards a multivalent Ni substitution in the nanoparticles.

show abstract

Section: Resultssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Structural and Optical Characteristics of Highly UV-Blue Luminescent ZnNiO Nanoparticles Prepared by Sol–Gel Method

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Silver (Ag) is used as a dopant for ZnO because of its high stability and compatibility with transparent and conducting oxides at high temperature. Ag‐doped ZnO is utilized in various optoelectronic applications . In our group, several conducting polymer nanocomposites based on polyaniline, polypyrrole, and polyindole have been synthesized, and they exhibited good conductivity and processability .…”

Section: Introductionmentioning

confidence: 99%

Structural, electrical, thermal, and gas sensing properties of new conductive blend nanocomposites based on polypyrrole/phenothiazine/silver‐doped zinc oxide

Ramesan

Greeshma

Parvathi

et al. 2019

Vinyl Additive Technology

View full text Add to dashboard Cite

The main aim of this study is to investigate the effect of silver-doped zinc oxide (Ag-ZnO) loading on the structural, morphological, thermal and electrical properties, and gas sensing behavior of polypyrrole (PPy)/phenothiazine (PTZ)-blend nanocomposites. The composites are characterized by FTIR, XRD, SEM, TEM, DSC, TGA, and impedance studies. FTIR spectra exhibit the presence of Ag-ZnO in the PPy/PTZ blend. XRD analysis shows that the semicrystalline behavior of the polymer blend is greatly enhanced by the addition of Ag-doped ZnO particles. Uniform dispersion of nanoparticles in the polymer is obtained from SEM analysis. The TEM images confirm the presence of spherically shaped nanoparticles in PPy/PTZ blend with a size of 10-25 nm. The DSC measurement indicates that the glass transition temperature of PPy/PTZ blend was significantly improved in the presence of Ag-doped ZnO nanoparticles. The thermal decomposition temperature of nanocomposite obtained from TGA shows an increase with increase in the content of Ag-ZnO particles. The incorporation of Ag-doped ZnO nanoparticles to PPy/PTZ blend exhibit increase in the AC conductivity and dielectric properties of the nanocomposite, due to the pilling of charges at the extended interface of the composite system. The DC conductivity of the nanocomposite increases with the loading of nanoparticles. The ammonia gas sensing performance of PPy/PTZ/Ag-ZnO nanocomposite is analyzed, and the result shows that the fabricated blend composite can be used as a promising candidate for the easy access of gas molecules. Intensity (counts) FIG. 2. XRD patterns of Ag-doped ZnO, PPy/PTZ blend with different contents of Ag-doped ZnO. PPy-PTZ PPy-PTZ/ 5 wt % Ag-ZnO PPy-PTZ/ 7 wt % Ag-ZnO PPy-PTZ/ 10 wt % Ag-ZnO PPy-PTZ/ 15 wt % Ag-ZnO Tan Log frequency (Hz) FIG. 9. Dielectric loss tangent versus frequency plots for PPy/PTZ blend with Ag-doped ZnO nanoparticles. [Color figure can be viewed at wileyonlinelibrary.com]

show abstract

Section: Resultsmentioning

confidence: 99%

“…The obtained results show a positive slope, and this indicates the tensile strain. The lattice strain and crystalline size of the samples are expected to have a significant effect on the optical properties [35]. The strain values calculated were found to decrease with Mg doping and increase with Al doping, this can be interpreted as the incorporation of dopants in the ZnO lattice.…”

Section: Xrdmentioning

confidence: 90%

The structural and optical properties of Al and Mg doped ZnO synthesized by solid state reaction method

Bilgili

2021

Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi

View full text Add to dashboard Cite

In this study, the structural and optical properties of Al and Mg doped zinc oxide Zn0.98M0.02O (M= Al, Mg) prepared by solid state reaction method is investigated. Xray diffraction (XRD), Scanning Electron Microscopy (SEM), UV-Visible spectroscopy (UV-Vis) and Fourier Transform Infrared (FTIR) spectroscopy were employed to study the structural and optical properties. With XRD analysis, it was revealed that all the samples are hexagonal wurtzite structure and exhibit no impurity phases. The reflectance spectra was used to determine the optical band gap of the samples. And it was found that undoped ZnO sample has an energy band gap of 3.16 eV which increases with Al and Mg doping, probably driven by the decrease in the lattice parameters. The structural bond vibrations of undoped and doped ZnO were analysed by FTIR spectroscopy, and it was seen that the broad absorption band is at approximately 550 cm -1 for all the samples, which corresponds to the stretching vibration of Zn-O bond.

show abstract

Structural, morphological and optical studies of Ag-doped ZnO nanoparticles synthesized by simple solution combustion method

Cited by 19 publications

References 45 publications

Structural and Optical Characteristics of Highly UV-Blue Luminescent ZnNiO Nanoparticles Prepared by Sol–Gel Method

Structural and Optical Characteristics of Highly UV-Blue Luminescent ZnNiO Nanoparticles Prepared by Sol–Gel Method

Structural, electrical, thermal, and gas sensing properties of new conductive blend nanocomposites based on polypyrrole/phenothiazine/silver‐doped zinc oxide

The structural and optical properties of Al and Mg doped ZnO synthesized by solid state reaction method

Contact Info

Product

Resources

About