Construction of a 3D-rGO network-wrapping architecture in a YbyCo4Sb12/rGO composite for enhancing the thermoelectric performance

2015 ◽  
Vol 3 (16) ◽  
pp. 8643-8649 ◽  
Author(s):  
Peng-an Zong ◽  
Xihong Chen ◽  
Yanwu Zhu ◽  
Ziwei Liu ◽  
Yi Zeng ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Seebeck Coefficient ◽  
Network Architecture ◽  
Lattice Thermal Conductivity ◽  
Thermoelectric Performance

The construction of a 3D-rGO network architecture dramatically reduced the lattice thermal conductivity and simultaneously enhanced the Seebeck coefficient, leading to a maximum ZT of 1.51.

scholarly journals Lead-free SnTe-based thermoelectrics: enhancement of thermoelectric performance by doping with Gd/Ag

2016 ◽  
Vol 4 (20) ◽  
pp. 7936-7942 ◽  
Author(s):  
Lijuan Zhang ◽  
Jianli Wang ◽  
Zhenxiang Cheng ◽  
Qiao Sun ◽  
Zhen Li ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Seebeck Coefficient ◽  
Thermoelectric Materials ◽  
Lattice Thermal Conductivity ◽  
Lead Free ◽  
Thermoelectric Performance ◽  
Co Doping

Gd/Ag co-doping is an effective way to simultaneously reduce the lattice thermal conductivity and enhance the Seebeck coefficient of SnTe-based thermoelectric materials.

scholarly journals A Material Catalogue with Glass-Like Thermal Conductivity Mediated by the Crystallographic Occupancy for Thermoelectric Application

2021 ◽  
Author(s):  
Zihang Liu ◽  
Wenhao Zhang ◽  
Weihong Gao ◽  
Takao Mori
Keyword(s):  
Thermal Conductivity ◽  
Lattice Thermal Conductivity ◽  
Thermoelectric Performance ◽  
Synthetic Approach ◽  
Thermoelectric Application

Discovering materials with the intrinsically low lattice thermal conductivity κlat is an important route for achieving high thermoelectric performance. In reality, the conventional synthetic approach, however, relies on trial and...

Investigation of Thermoelectric Materials: Substitution effect of Bi on the Ag1-xPb18MTe20 (M = Sb, Bi) (x = 0, 0.14, 0.3)

2007 ◽  
Vol 1044 ◽  
Author(s):  
Mi-kyung Han ◽  
Huijun Kong ◽  
Ctirad Uher ◽  
Mercouri G Kanatzidis
Keyword(s):  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
Seebeck Coefficient ◽  
Thermoelectric Materials ◽  
Figure Of Merit ◽  
Lattice Thermal Conductivity ◽  
Substitution Effect ◽  
Dimensionless Figure Of Merit ◽  
The Matrix ◽  
Mass Fluctuation

AbstractWe performed comparative investigations of the Ag1-xPb18MTe20 (M = Bi, Sb) (x = 0, 0.14, 0.3) system to better understand the roles of Sb and Bi on the thermoelectric properties. In both systems, the electrical conductivity nearly keeps the same values, while the Seebeck coefficient decreases dramatically in going from Sb to Bi. Compared to the lattice thermal conductivity of PbTe, that of AgPb18BiTe20 is substantially reduced. The lattice thermal conductivity of the Bi analog, however, is higher than that of AgPb18SbTe20 and this is attributed largely to the decrease in the degree of mass fluctuation between the nanostructures and the matrix (for the Bi analog). As a result the dimensionless figure of merit ZT of Ag1-xPb18MTe20 (M = Bi) is found to be smaller than that of Ag1-xPb18MTe20 (M = Sb).

scholarly journals First-principles predictions of low lattice thermal conductivity and high thermoelectric performance of AZnSb (A = Rb, Cs)

RSC Advances ◽  
2021 ◽  
Vol 11 (25) ◽  
pp. 15486-15496
Author(s):  
Enamul Haque
Keyword(s):  
Thermal Conductivity ◽  
Debye Temperature ◽  
Layered Structure ◽  
First Principles ◽  
Lattice Thermal Conductivity ◽  
Phonon Scattering ◽  
Thermoelectric Performance

The layered structure, and presence of heavier elements Rb/Cs and Sb induce high anharmonicity, low Debye temperature, intense phonon scattering, and hence, low lattice thermal conductivity.

Enhanced thermoelectric performance in PbTe-based superlattice structures from reduction of lattice thermal conductivity

2005 ◽  
Vol 87 (2) ◽  
pp. 023105 ◽  
Author(s):  
J. C. Caylor ◽  
K. Coonley ◽  
J. Stuart ◽  
T. Colpitts ◽  
R. Venkatasubramanian
Keyword(s):  
Thermal Conductivity ◽  
Lattice Thermal Conductivity ◽  
Thermoelectric Performance ◽  
Superlattice Structures

scholarly journals Ultralow lattice thermal conductivity enables high thermoelectric performance in BaAg2Te2 alloys

2021 ◽  
pp. 100591
Author(s):  
Jing Tang ◽  
Cheng Qin ◽  
Hulei Yu ◽  
Zezhu Zeng ◽  
Lixun Cheng ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Lattice Thermal Conductivity ◽  
Thermoelectric Performance
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