Graphdiyne: A two-dimensional thermoelectric material with high figure of merit
نویسندگان
چکیده
منابع مشابه
Epitaxial CrN thin films with high thermoelectric figure of merit.
A large enhancement of the thermoelectric figure of merit is reported in single-crystalline films of CrN. The mechanism of the reduction of the lattice thermal conductivity in cubic CrN is similar to the resonant bonding in IV-VI compounds. Therefore, useful ideas from classic thermo-electrics can be applied to tune functionalities in transition metal nitrides and oxides.
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A theoretical treatment on the effect of a magnetic field on the thermoelectric figure of merit ZT for two-dimensional (2D) materials is presented. The figure of merit is a function of three transport coefficients: the electrical conductivity, the Seebeck coefficient or thermopower, and the total thermal conductivity. The total thermal conductivity consists of contribution from electrons and ph...
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The accurate determination of the thermoelectric properties of a material becomes increasingly difficult as the temperature rises. However, it is the properties at elevated temperatures that are important if thermoelectric generator efficiency is to be improved. It is shown that the dimensionless figure of merit, ZT, might be expected to rise with temperature for a given material provided that ...
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Half-Heuslers would be important thermoelectric materials due to their high temperature stability and abundance if their dimensionless thermoelectric figure of merit (ZT) could be made high enough. The highest peak ZT of a p-type half-Heusler has been so far reported about 0.5 due to the high thermal conductivity. Through a nanocomposite approach using ball milling and hot pressing, we have ach...
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The apparatus for evaluation of the figure of merit (ZT) of thermoelectric devices has been developed. ZT value is comprised of three physical quantities, Seebeck coefficient, electrical conductivity, and thermal conductivity. However, to date, the ZT values of the thermoelectric devices have been evaluated by Harman method due to difficulty in measuring thermal conductivity of the devices with...
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ژورنال
عنوان ژورنال: Carbon
سال: 2015
ISSN: 0008-6223
DOI: 10.1016/j.carbon.2015.04.037