Electrical Conductivity Enhancement of V2O5-P2O5-Bi2O3 Glasses by Nanocrystallization

Ibrahim, F. A.

doi:10.1007/s11664-021-09308-6

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…A smaller conductance for V 2 O 5 :Gl is also expected due to the fewer conducting paths for low packed and scattered crystallite structures of V 2 O 5 , as observed in the FESEM study. According to Ibrahim (2022), electrical conductivity generally behaves similarly across all glass compositions and to decrease with increasing phosphate concentration. Burdyukh et al (2018) found that W-metal implantation has a significant impact on the switching structures' I-V curves.…”

Section: Electrical Measurementsmentioning

confidence: 97%

Structural, optical, and electrical properties of V2O5 thin films: Nitrogen implantation and the role of different substrates

Priya

Jasrotia²,

Kumar³

et al. 2022

Front. Mater.

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This report investigates the effect of substrate and nitrogen (16 keV N+) ion implantation on the structural, morphological, compositional, and electrical properties of V2O5 thin films which are grown by thermal evaporation on various substrates, including glass, Si, and sapphire (termed V2O5:Gl, V2O5:Si, and V2O5:Sp, respectively). Structural analysis showed the formation of the mixed (α, and β-V2O5) phases on all substrates; however, the β-V2O5 phase is highly dominant in the V2O5:G and V2O5:Si samples. A deformation in the β-phase of V2O5 thin film under ion implantation-induced strain results in a change of crystallite size. Irradiation suppresses XRD peaks in relative intensities, indicating partial amorphization of the film with defect formation. Microstructural analysis confirmed the formation of uniform-sized nanorods for V2O5:Si, whereas isolated crystallites were formed for other types of substrates. Thermal conductivity may influence the size and shapes of V2O5 crystallite forms on different surfaces. Silicon absorbs heat more effectively than sapphire or glass, resulting in nanorod formation. A decrease in optical bandgap and electrical conduction has been observed due to increased oxygen vacancies, induced electron scattering, and trapping centres on N+ implantation. The present study thus offers the unique advantage of simultaneous reduction in optical band-gap and conductance of V2O5 thin films, which is important for optoelectronic applications.

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Section: Electrical Measurementsmentioning

confidence: 97%

Structural, optical, and electrical properties of V2O5 thin films: Nitrogen implantation and the role of different substrates

Priya

Jasrotia²,

Kumar³

et al. 2022

Front. Mater.

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Dc conductivity and threshold switching properties of (V2O5)75-x.(PbO)x.SrO25 glasses

Ahmed,

Hammouda,

Al-hasni

et al. 2024

J Mater Sci: Mater Electron

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The Role of Nanocrystallization for the Enhancement of Structural, Electrical, and Transport Properties of BaTiO3-V2O5-PbO Glasses

Morad

Harby

Ayoub

et al. 2023

J. Electron. Mater.

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Glass-ceramic nanocrystals (GCNs) were created via annealing at crystallization temperature Tc for the parent BaTiO3-V2O5-PbO glasses prepared by the melt quenching technique. The amorphous character of the existing quenched glasses was confirmed by scanning electron microscopy. Furthermore, the general characteristics of x-ray diffraction support the amorphous nature of the glasses. In the related heat-treated samples, the typical nanostructure size is less than 60 nm. It was discovered that an increase in the density of the GCNs occurred with an increase in the BaTiO3 percentage. Also, with increasing BaTiO3 content, a slight increase was observed in the crystallization and glass transition temperature from 335°C to 365°C and 265°C to 320°C, respectively. It was revealed that suitable nanocrystallization at temperatures around the onset of Tc for 1 h was able to significantly increase the electronic conductivity of the initial glasses. The accumulation of V4+–V5+ pairs at the interlayer zones created between nanocrystallites and the glassy phase were accountable for electron hopping in the current approach, which was significantly higher than in the glass phase. The experimental findings were investigated in a model based on the “core–shell” idea. Appropriate values for the different small polaron hopping (SPH) variables were found from the best fits. Non-adiabatic hopping of small polarons was responsible for the conduction. As a result of the alteration of the nanostructure, conductivity was enhanced. Compared to the original glasses, the final materials have significantly better electrical conductivity. Such characteristics can be utilized in the design for industrial applications.

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Electrical Conductivity Enhancement of V2O5-P2O5-Bi2O3 Glasses by Nanocrystallization

Cited by 3 publications

References 22 publications

Structural, optical, and electrical properties of V2O5 thin films: Nitrogen implantation and the role of different substrates

Structural, optical, and electrical properties of V2O5 thin films: Nitrogen implantation and the role of different substrates

Dc conductivity and threshold switching properties of (V2O5)75-x.(PbO)x.SrO25 glasses

The Role of Nanocrystallization for the Enhancement of Structural, Electrical, and Transport Properties of BaTiO3-V2O5-PbO Glasses

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