Synthesis of Titanium-doped MgO heteronanostructures with tunable band gap

Sharma, Urvashi; Jeevanandam, P.

doi:10.1007/s11051-016-3396-z

Cited by 7 publications

(2 citation statements)

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“…Figure B shows the temperature dependence of AC conductivity (σ AC ) measured at 2 MHz. The σ AC is showed a linear variation with the reciprocal of absolute temperature, which indicates that the AC conductivity is thermally activated from different localized states in the bandgap . The obtained activation energy of MZrT sample at 2 MHz is 3.58 eV.…”

Section: Resultsmentioning

confidence: 79%

“…The r AC is showed a linear variation with the reciprocal of absolute temperature, which indicates that the AC conductivity is thermally activated from different localized states in the bandgap. 43 The obtained activation energy of MZrT sample at 2 MHz is 3.58 eV. Furthermore, the thermal conductivity of the MZrT ceramics, sintered at 950°C is measured at room temperature.…”

Section: Resultsmentioning

confidence: 96%

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Low temperature synthesis and characterization of nano‐crystalline Mg(Zr_0.05Ti_0.95)O₃ ceramics

2018

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Mg(Zr0.05Ti0.95)O3 (MZrT) ceramics nanoparticles have been synthesized by polyol method for the first time. The phase evaluation of the MZrT nanoparticles was confirmed using thermo gravimetric analysis and the phase purity of the samples were analyzed using X‐ray diffraction and Raman spectroscopy. The transmission electron microscopy (TEM) images revealed the average particle size between 30 and 40 nm. The optical bandgap is in the range of 3.66‐3.82 eV and is attributed to the quantum confinement effect. Interestingly, the nanopowders sintered at 950°C for 3 hours exhibit the maximum density of 97.52% of the theoretical density which is attributed to the higher sintering velocity of the smaller particles. The obtained microstructure of the ceramics reveals porous free uniform microstructure with prominent grain boundaries. A best combination of microwave dielectric properties (εr ~18.04, Q × fo ~175 THz at 9.5 GHz) are obtained for MZrT ceramics sintered at 950°C for 3 hours. The non‐Debye‐like relaxation process is found to exist inside the sample confirmed by impedance spectroscopy. The AC conduction mechanism is explained on the basis of Correlated Barrier Hopping model. Thermal conductivity of the MZrT ceramics is found to be 10 W/mK. The obtained properties of MZrT ceramics are suitable for resonator, microwave integrated circuit and LTCC applications.

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Section: Resultsmentioning

confidence: 79%

Section: Resultsmentioning

confidence: 96%

Low temperature synthesis and characterization of nano‐crystalline Mg(Zr_0.05Ti_0.95)O₃ ceramics

2018

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Doped Semiconductor Nanomaterials: Applications in Energy and in the Degradation of Organic Compounds

Estrada-Flores¹,

Martínez-Luévanos²,

Esquivel-Castro³

et al. 2020

Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications

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Doped Semiconductor Nanomaterials: Applications in Energy and in the Degradation of Organic Compounds

Estrada-Flores

Martínez-Luévanos

Esquivel-Castro

et al. 2021

Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications

View full text Add to dashboard Cite

Synthesis of Titanium-doped MgO heteronanostructures with tunable band gap

Cited by 7 publications

References 50 publications

Low temperature synthesis and characterization of nano‐crystalline Mg(Zr_0.05Ti_0.95)O₃ ceramics

Low temperature synthesis and characterization of nano‐crystalline Mg(Zr_0.05Ti_0.95)O₃ ceramics

Doped Semiconductor Nanomaterials: Applications in Energy and in the Degradation of Organic Compounds

Doped Semiconductor Nanomaterials: Applications in Energy and in the Degradation of Organic Compounds

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Synthesis of Titanium-doped MgO heteronanostructures with tunable band gap

Cited by 7 publications

References 50 publications

Low temperature synthesis and characterization of nano‐crystalline Mg(Zr0.05Ti0.95)O3 ceramics

Low temperature synthesis and characterization of nano‐crystalline Mg(Zr0.05Ti0.95)O3 ceramics

Doped Semiconductor Nanomaterials: Applications in Energy and in the Degradation of Organic Compounds

Doped Semiconductor Nanomaterials: Applications in Energy and in the Degradation of Organic Compounds

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Low temperature synthesis and characterization of nano‐crystalline Mg(Zr_0.05Ti_0.95)O₃ ceramics

Low temperature synthesis and characterization of nano‐crystalline Mg(Zr_0.05Ti_0.95)O₃ ceramics