Effects of sintering atmospheres on thermoelectric properties, phase, microstructure and lattice parameters c/a ratio of Al, Ga dual doped ZnO ceramics sintered at high temperature

Matiullah,; Wang, C.L.; Su, Weizhou; Zaman, Abid; Ullah, Ikram; Zhai, Jiqiang; Liu, D. K.

doi:10.1007/s10854-018-8990-7

Cited by 9 publications

(1 citation statement)

References 29 publications

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“…However, the materials were found to contain an unknown secondary phase besides the wurtzite structure of (Al,Ga)-doped ZnO. More recently, materials of similar compositions were synthesized by sintering in air and Ar, and their thermoelectric properties were investigated (Matiullah et al, 2018). In those samples the secondary phase also appeared and was still referred to as an 'unknown phase'.…”

Section: Introductionmentioning

confidence: 99%

Utilizing a unified structure model in (3 + 1)-dimensional superspace to identify a homologous phase (Ga_1−αAl_α)₂O₃(ZnO)_min ZnO-based thermoelectric composites

2020

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A unified structure model in (3 + 1)-dimensional superspace proved suitable for identification of a homologous phase (Ga1−αAlα)2O3(ZnO) m by the profile fitting of powder X-ray diffraction intensities for thermoelectric composite materials in the pseudoternary system ZnO–Al2O3–Ga2O3. A homologous compound of the phase parameter m ≃ 37 was found to coexist with (Al,Ga)-doped ZnO in samples sintered at 1723 K in air. The thermoelectric properties of the composite materials were closely related to the phase fractions. The higher the phase fraction of (Al,Ga)-doped ZnO with the wurtzite structure, the higher the electrical conductivity. On the other hand, the homologous compound with the long-period structure was effective in lowering the thermal conductivity of the materials.

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Section: Introductionmentioning

confidence: 99%

Utilizing a unified structure model in (3 + 1)-dimensional superspace to identify a homologous phase (Ga_1−αAl_α)₂O₃(ZnO)_min ZnO-based thermoelectric composites

2020

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Enhancement of thermoelectric power factor of zinc oxide by nickel and indium dual doping

Soumya

Pradyumnan

2022

Intl J of Energy Research

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Effect of structural and morphological deformation on the enhancement of thermoelectric properties of zinc oxide due to the dual substitution of indium and nickel was investigated. The doped materials resemble the hexagonal wurtzite structure of the host material, with increased crystallite size and strain, indicating the inclusion of the cations with larger radius. Reduction in the optical band gap energy from 3.1 eV to 2.20 eV is observed with a red shift in the absorption edge. The donor cations doped samples have high charge carrier density, resulting an increase in the transport properties. Highest electrical conductivity and seebeck coefficient were obtained for the doped samples leading to a hike in the power factor of 1427 μW/mK 2 . The thermal conductivity decreased with doping concentration, and highest figure of merit of 0.11 was obtained.

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Cu/Mn–ZnO nanoparticles with dual-reaction centers (DRCs) induced peroxymonosulfate (PMS) activation for refractory organic compounds catalytic degradation

Wang

et al. 2023

J Mater Sci

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Effects of sintering atmospheres on thermoelectric properties, phase, microstructure and lattice parameters c/a ratio of Al, Ga dual doped ZnO ceramics sintered at high temperature

Cited by 9 publications

References 29 publications

Utilizing a unified structure model in (3 + 1)-dimensional superspace to identify a homologous phase (Ga_1−αAl_α)₂O₃(ZnO)_min ZnO-based thermoelectric composites

Utilizing a unified structure model in (3 + 1)-dimensional superspace to identify a homologous phase (Ga_1−αAl_α)₂O₃(ZnO)_min ZnO-based thermoelectric composites

Enhancement of thermoelectric power factor of zinc oxide by nickel and indium dual doping

Cu/Mn–ZnO nanoparticles with dual-reaction centers (DRCs) induced peroxymonosulfate (PMS) activation for refractory organic compounds catalytic degradation

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Effects of sintering atmospheres on thermoelectric properties, phase, microstructure and lattice parameters c/a ratio of Al, Ga dual doped ZnO ceramics sintered at high temperature

Cited by 9 publications

References 29 publications

Utilizing a unified structure model in (3 + 1)-dimensional superspace to identify a homologous phase (Ga1−αAlα)2O3(ZnO)min ZnO-based thermoelectric composites

Utilizing a unified structure model in (3 + 1)-dimensional superspace to identify a homologous phase (Ga1−αAlα)2O3(ZnO)min ZnO-based thermoelectric composites

Enhancement of thermoelectric power factor of zinc oxide by nickel and indium dual doping

Cu/Mn–ZnO nanoparticles with dual-reaction centers (DRCs) induced peroxymonosulfate (PMS) activation for refractory organic compounds catalytic degradation

Contact Info

Product

Resources

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Utilizing a unified structure model in (3 + 1)-dimensional superspace to identify a homologous phase (Ga_1−αAl_α)₂O₃(ZnO)_min ZnO-based thermoelectric composites

Utilizing a unified structure model in (3 + 1)-dimensional superspace to identify a homologous phase (Ga_1−αAl_α)₂O₃(ZnO)_min ZnO-based thermoelectric composites