Enhanced DC conductivity and Seebeck coefficient of CoWO4/PbWO4 nanocomposites: role of interface

2021 ◽  
Vol 127 (7) ◽  
Author(s):  
M. Jeyakanthan ◽  
Uma Subramanian
Keyword(s):  
Seebeck Coefficient ◽  
Dc Conductivity

Critical role of nanoinclusions in silver selenide nanocomposites as a promising room temperature thermoelectric material

2019 ◽  
Vol 7 (9) ◽  
pp. 2646-2652 ◽  
Author(s):  
Khak Ho Lim ◽  
Ka Wai Wong ◽  
Yu Liu ◽  
Yu Zhang ◽  
Doris Cadavid ◽  
...  
Keyword(s):  
Seebeck Coefficient ◽  
Room Temperature ◽  
Opposite Effect ◽  
Critical Role ◽  
Free Carrier ◽  
Silver Selenide ◽  
Band Bending ◽  
Seebeck Coefficients ◽  
Electrical Conductivities

The introduction of nonmetal nanoinclusions within Ag2Se results in an interphase band bending that promotes electron filtering and increase Seebeck coefficient. Similar loading of metal nanoinclusions provided an opposite effect-modulating free carrier concentration, as characterized by superior electrical conductivities and lower Seebeck coefficients.

scholarly journals Boosting the Seebeck Coefficient for Organic Coordination Polymers: Role of Doping-Induced Polaron Band Formation

2019 ◽  
Vol 10 (10) ◽  
pp. 2493-2499 ◽  
Author(s):  
Yunpeng Liu ◽  
Wen Shi ◽  
Tianqi Zhao ◽  
Dong Wang ◽  
Zhigang Shuai
Keyword(s):  
Seebeck Coefficient ◽  
Coordination Polymers ◽  
Band Formation ◽  
Polaron Band

Role of PbO in EPR, optical properties and DC conductivity of vanadyl-doped alkali lead borate glasses

2005 ◽  
Vol 355 (1-4) ◽  
pp. 44-53 ◽  
Author(s):  
P.S. Gahlot ◽  
V.P. Seth ◽  
A. Agarwal ◽  
S. Sanghi ◽  
P. Chand ◽  
...  
Keyword(s):  
Optical Properties ◽  
Dc Conductivity ◽  
Borate Glasses ◽  
Lead Borate ◽  
Lead Borate Glasses

scholarly journals Thermoelectric Properties of Sb-S System Compounds from DFT Calculations

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4707
Author(s):  
Hailong Yang ◽  
Pascal Boulet ◽  
Marie-Christine Record
Keyword(s):  
Seebeck Coefficient ◽  
Thermoelectric Properties ◽  
Electronic Structures ◽  
Density Functional ◽  
Lattice Thermal Conductivity ◽  
Dimensional Structure ◽  
Functional Theory ◽  
One Dimensional ◽  
Shed Light

By combining density functional theory, quantum theory of atoms in molecules and transport properties calculations, we evaluated the thermoelectric properties of Sb-S system compounds and shed light on their relationships with electronic structures. The results show that, for Sb2S3, the large density of states (DOS) variation induces a large Seebeck coefficient. Taking into account the long-range weak bonds distribution, Sb2S3 should exhibit low lattice thermal conductivity. Therefore, Sb2S3 is promising for thermoelectric applications. The insertion of Be atoms into the Sb2S3 interstitial sites demonstrates the electrical properties and Seebeck coefficient anisotropy and sheds light on the understanding of the role of quasi-one-dimensional structure in the electron transport. The large interstitial sites existing in SbS2 are at the origin of phonons anharmonicity which counteracts the thermal transport. The introduction of Zn and Ga atoms into these interstitial sites could result in an enhancement of all the thermoelectric properties.

Role of WO3 on DC conductivity and some optical properties of TeO2 based glasses

2012 ◽  
Vol 47 (11) ◽  
pp. 3764-3769 ◽  
Author(s):  
G. Upender ◽  
Ch. Sameera Devi ◽  
V. Chandra Mouli
Keyword(s):  
Optical Properties ◽  
Dc Conductivity

The role of grain boundaries in the DC conductivity ofp-sexiphenyl films

2004 ◽  
Vol 16 (13) ◽  
pp. 2231-2244 ◽  
Author(s):  
S Tkaczyk ◽  
I V Kityk ◽  
J Ebothé ◽  
R Viennois
Keyword(s):  
Grain Boundaries ◽  
Dc Conductivity
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