Work

Intrinsic effects of substitution and intercalation on thermal transport in two-dimensional TiS2 single crystals

Year: 2015

Type: article

Abstract: The promising thermoelectric material TiS$_2$ can be easily chemically doped and intercalated. We present here studies of single crystals that are intercalated with excess Ti or Co, or substituted with Ta. We demonstrate the intrinsic impact of these dopants on the thermal transport in the absence of grain boundary scattering. We show that Ta doping has the greatest impact on the thermal scattering rate per ion added, leading to a five-fold reduction in the lattice thermal conductivity as compared to stoichiometric single crystals.

Source: Journal of Applied Physics

DOI: 10.1063/1.4919078

Authors: Ramzy Daou, Hidefumi Takahashi, Sylvie Hébert, Marine Beaumale, Emmanuel Guilmeau, Antoine Maignan

Institutions: Centre National de la Recherche Scientifique, Laboratoire de Cristallographie et Sciences des Matériaux, Philips (France), Nagoya University

Language: English

Topic: Thermal properties of materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1982392228

FWCI: 0.925

Cites: 22

Cited by: 23

Related to: 10