Year: 2018
Type: article
Abstract: Here, the electric and thermoelectric transport coefficients of nanocomposites are investigated using the Non‐Equilibrium Green's Function (NEGF) method, which can accurately capture the details of geometry and disorder in these structures. Two‐dimensional (2D) channels with embedded nanoinclusions (NIs) are considered, which are modelled as potential barriers of cylindrical shape and height . The effect of randomness of the NIs on the thermoelectric power factor is investigated by varying the positions, diameter, and heights of the barriers according to a Gaussian probability distribution. It is found that the power factor shows indications of tolerance to variations in the parameters of the NIs when the Fermi level is placed into the bands and . These results could be experimentally relevant in the design of nanocomposites for thermoelectric applications.
Source: physica status solidi (a)
Institution: University of Warwick
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
Awards: G5212801478, G8365242089
OpenAlex ID: W2963181105