Exceptionally high open circuit thermoelectric figure of merit in two-dimensional tin sulphide. (17th June 2021)

• Record Type: Journal Article
• Authors: Nag, Shagun; Singh, Ranber; Kumar, Ranjan
• Is Part Of: Journal of physics. Volume 33:Number 31(2021)
• Publication Date: 2021-06-17
• Subjects: two-dimensional -- figure of merit -- first-principles -- density functional theory; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/ac0572
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: Thermoelectric materials with high values of power factor and thermoelectric figure of merit ( ZT ) are in great demand to make efficient thermoelectric devices. In this work, we explore the thermoelectric transport properties of layered tin sulphide (SnS) using first-principles method combined with Boltzmann transport theory. Our calculations show that the two-dimensional (2D) SnS materials have exceptionally high charge carrier mobilities and low lattice thermal conductivities as compared to other 2D materials such as graphene, phosphorene, MoS2, etc. Consequently, these 2D SnS materials have high power factor and ZT values.