Citation: CHEN Hao-Ying, ZHANG Rui-Zhi, ZHAO Pei, CAO Li-Ke. Influence of the Layer Thickness on the Thermoelectric Properties of TiS₂ Nanosheets:a Theoretical Study[J]. Chinese Journal of Inorganic Chemistry, ;2014, 30(3): 506-510. doi: 10.11862/CJIC.2014.050 shu

Influence of the Layer Thickness on the Thermoelectric Properties of TiS₂ Nanosheets:a Theoretical Study

1.
Department of Physics, Northwest University, Xi'an, 710069, China

Received Date: 1 July 2013
Available Online: 1 October 2013
Fund Project: 国家自然科学基金(No.11104220) (No.11104220)陕西省自然科学基础研究计划(No.2011JQ1012) (No.2011JQ1012)陕西省教育厅自然科学基金专项(No.11JK0522)资助项目。 (No.11JK0522)

With the discovery of graphene, two dimensional nanosheets are of great interest due to their novel physics. Among these 2D systems, transition metal sulficid nanosheets with strong correlated nature and ample compositional variations attract more and more attention. Here, by using density functional theory calculations and semi-classic Boltzmann transport equations, we investigated the influence of layer thickness on thermoelectric properties of TiS₂ nanosheets, whose courtpart bulk material already shows some promising thermoelectric performance. Our theoretical results show that when the thickness is greater than the critical thickness for electronic quantum confinement and also is smaller than the critical thickness for phonon confinement, the TiS₂ nanosheets will have better thermoelectric performance than its counterpart bulk. These finding is helpful for design novel high performance thermoelectric materials.
- thermoelectric;nanosheets;layered materials
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Influence of the Layer Thickness on the Thermoelectric Properties of TiS2 Nanosheets:a Theoretical Study

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通讯作者: 陈斌, bchen63@163.com

Influence of the Layer Thickness on the Thermoelectric Properties of TiS₂ Nanosheets:a Theoretical Study