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High anisotropic thermoelectric effect in palladium phosphide sulphide
Author(s) -
Kaur Prabhjot,
Chakraverty Suvankar,
Ganguli Ashok Kumar,
Bera Chandan
Publication year - 2017
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201700021
Subject(s) - thermoelectric effect , orthorhombic crystal system , materials science , chalcogenide , seebeck coefficient , ternary operation , phosphide , pnictogen , atmospheric temperature range , condensed matter physics , palladium , thermal conductivity , anisotropy , thermoelectric materials , optoelectronics , crystallography , thermodynamics , metallurgy , chemistry , crystal structure , composite material , optics , metal , superconductivity , biochemistry , physics , computer science , programming language , catalysis
Abstract We have performed density functional theory (DFT) in combination with Boltzmann transport calculation to theoretically estimate the thermoelectric properties of ternary palladium pnictide chalcogenide, PdPS. A large thermopower, S , both for p‐type ( ∼ 345 μVK − 1), and n‐type ( ∼ 335 μVK − 1) PdPS at temperature, T = 300 K and carrier concentration, n = 10 20 cm − 3has been observed. The orthorhombic PdPS has large anisotropic power factor in its three crystallographic directions, which may enable the designing of nanostructured thermoelectric devices in the temperature range of 300–800 K. We also show that thermal conductivity is considerably low ∼ 0.11W ( mK ) − 1in z ‐crystallographic direction of PdPS at 100 nm and 300 K. Our results imply that nanostructured PdPS can be a promising thermoelectric material.