scholarly journals Outstanding thermoelectric properties of solvothermal-synthesized Sn1−3xInxAg2xTe micro-crystals through defect engineering and band tuning

2020 ◽  
Vol 8 (7) ◽  
pp. 3978-3987 ◽  
Author(s):  
Raza Moshwan ◽  
Wei-Di Liu ◽  
Xiao-Lei Shi ◽  
Qiang Sun ◽  
Han Gao ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Transport Properties ◽  
Valence Band ◽  
Thermoelectric Properties ◽  
Electrical Transport ◽  
Energy Levels ◽  
Resonance Energy ◽  
Defect Engineering ◽  
Electrical Transport Properties ◽  
Co Doping

In eco-friendly SnTe thermoelectrics, In and Ag co-doping induces the synergistic effect of resonance energy levels and valence band convergence to enhance its electrical transport properties, while defects ameliorates its thermal transport.

scholarly journals Tailoring the structure and thermoelectric properties of BaTiO3via Eu2+ substitution

2017 ◽  
Vol 19 (21) ◽  
pp. 13469-13480 ◽  
Author(s):  
Xingxing Xiao ◽  
Marc Widenmeyer ◽  
Wenjie Xie ◽  
Tianhua Zou ◽  
Songhak Yoon ◽  
...  
Keyword(s):  
Transport Properties ◽  
Valence Band ◽  
Thermoelectric Properties ◽  
Electrical Transport ◽  
Electrical Transport Properties

The presence of filled Eu2+ 4f states at the top of the valence band significantly affect the electrical transport properties of Ba1−xEuxTiO3−δ compounds.

Magnetic and electrical transport properties of Sr2Ti1−xCoxO4 ceramics by sol–gel

2017 ◽  
Vol 31 (17) ◽  
pp. 1750195
Author(s):  
Li Zhang ◽  
Yibao Li ◽  
Zhen Tang ◽  
Yan Deng ◽  
Hui Yuan ◽  
...  
Keyword(s):  
Transport Properties ◽  
Electrical Transport ◽  
Low Temperatures ◽  
Sol Gel ◽  
Variable Range Hopping ◽  
Electrical Transport Properties ◽  
Co Doping ◽  
Hopping Model ◽  
Variable Range Hopping Model ◽  
Co Doped

Microstructures, electrical transport and magnetic properties of Sr[Formula: see text]Ti[Formula: see text]Co[Formula: see text]O[Formula: see text] ceramics are investigated. With Co doping, the Sr[Formula: see text]Ti[Formula: see text]Co[Formula: see text]O[Formula: see text] ceramics remain tetragonal structure while the grain size is decreased with doping. Magnetic moment is enhanced with Co doping and ferromagnetism is observed at low temperatures for Co-doped Sr[Formula: see text]TiO[Formula: see text]. The Sr[Formula: see text]Ti[Formula: see text]Co[Formula: see text]O[Formula: see text] and Sr[Formula: see text]Ti[Formula: see text]Co[Formula: see text]O[Formula: see text] show semiconductor-like transport properties, which can be well fitted by Mott variable range hopping model. The results will provide an effective route to synthesize Sr[Formula: see text]Ti[Formula: see text]Co[Formula: see text]O[Formula: see text] ceramics as well as to investigate the physical properties.

The “electron crystal” behavior in copper chalcogenides Cu2X (X = Se, S)

2017 ◽  
Vol 5 (10) ◽  
pp. 5098-5105 ◽  
Author(s):  
Yongxing Sun ◽  
Lili Xi ◽  
Jiong Yang ◽  
Lihua Wu ◽  
Xun Shi ◽  
...  
Keyword(s):  
Transport Properties ◽  
Valence Band ◽  
Electronic Structures ◽  
Electrical Transport ◽  
Valence Band Maximum ◽  
Electrical Transport Properties ◽  
Band Maximum ◽  
Copper Chalcogenides ◽  
Structural Fluctuation ◽  
Electron Crystal

In Cu2Se, the structural fluctuation of the Cu sites have minor effects on the electronic structures around valence band maximum. The electrical transport properties of Cu2Se are mainly determined by the Se sublattice; Cu atoms serve as the carrier reservoirs.

Electrical transport properties and complex impedance investigation of Fe3+ and La3+ co-doping (Pb,Sr)TiO3 thin films

2018 ◽  
Vol 236-237 ◽  
pp. 179-188
Author(s):  
F.M. Pontes ◽  
D.S.L. Pontes ◽  
A.J. Chiquito ◽  
Y.N. Colmenares ◽  
V.R. Mastelaro ◽  
...  
Keyword(s):  
Thin Films ◽  
Transport Properties ◽  
Electrical Transport ◽  
Complex Impedance ◽  
Electrical Transport Properties ◽  
Co Doping

Enhanced thermoelectric properties of polycrystalline BiCuSeO via dual-doping in Bi sites

2019 ◽  
Vol 6 (3) ◽  
pp. 799-807 ◽  
Author(s):  
Fu Li ◽  
Min Ruan ◽  
Yuexing Chen ◽  
Wenting Wang ◽  
Jingting Luo ◽  
...  
Keyword(s):  
Transport Properties ◽  
Thermoelectric Properties ◽  
Electrical Transport ◽  
Electrical Transport Properties ◽  
Co Doped

Enhanced electrical transport properties are achieved for La, Pb co-doped BiCuSeO, resulting in optimized thermoelectric properties.

Ternary Skutterudites: Anion Ordering and Thermoelectric Properties

2007 ◽  
Vol 1044 ◽  
Author(s):  
Paz Vaqueiro ◽  
Gerard G. Sobany
Keyword(s):  
Seebeck Coefficient ◽  
Transport Properties ◽  
Thermoelectric Properties ◽  
Powder Diffraction ◽  
Diffraction Data ◽  
Electrical Transport ◽  
Powder Diffraction Data ◽  
Electrical Transport Properties ◽  
Electrical Resistivities ◽  
Thermal Conductivities

AbstractThe ternary skutterudites AB1.5Q1.5 (A = Co, Rh, Ir, B =Ge, Sn and Q = S, Te) have been synthesized and structurally characterised. Powder diffraction data are consistent with the presence of anion ordering, which results in a lowering of the symmetry from cubic to rhombohedral. The ordered skutterudite structure contains rhomboidal four-membered B2Q2 rings, instead of the homonuclear rectangular rings found in binary skutterudites. The electrical transport properties of the AB1.5Q1.5 phases are consistent with semiconducting behaviour, and large values of the Seebeck coefficient have been observed for several of these materials. While their large electrical resistivities might make these materials unsuitable for thermoelectric applications unless significant improvements can be achieved by doping, these materials also exhibit significantly lower thermal conductivities than their binary counterparts.

Influence of Si Co-doping on electrical transport properties of magnesium-doped boron nanoswords

2012 ◽  
Vol 100 (10) ◽  
pp. 103112 ◽  
Author(s):  
Yuan Tian ◽  
Hongliang Lu ◽  
Jifa Tian ◽  
Chen Li ◽  
Chao Hui ◽  
...  
Keyword(s):  
Transport Properties ◽  
Electrical Transport ◽  
Electrical Transport Properties ◽  
Co Doping
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