Correlation between thermoelectric transport properties and crystal structure in two-dimensional CrSiTe3

Kyu Hyoung Lee; Ho Sung Yu; Sang Il Kim; Seung Pil Moon; Jae Yeol Hwang; Sung Wng Kim

doi:10.1016/j.jallcom.2019.03.198

Correlation between thermoelectric transport properties and crystal structure in two-dimensional CrSiTe₃

Kyu Hyoung Lee, Ho Sung Yu, Sang Il Kim, Seung Pil Moon, Jae Yeol Hwang, Sung Wng Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The thermoelectric transport properties of artificially textured polycrystalline CrSiTe₃ samples have been investigated for elucidating their correlations with a crystal structure and the corresponding charge density distribution. We verified that the low mobility of 13–27 cm² V⁻¹ s⁻¹ attributing poor electronic transport properties is originated from the discrete charge density distribution in the covalently bonded layer. Also, the modulation of thermal conductivity values from 3.5 to 5.4 W m⁻¹ K⁻¹ with varying the texture was confirmed in pristine CrSiTe₃. Thus, we suggest that the electronic and thermal transport properties of layer structured CrSiTe₃ are strongly correlated with crystallographic features.

Original language	English
Pages (from-to)	93-98
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	790
DOIs	https://doi.org/10.1016/j.jallcom.2019.03.198
Publication status	Published - 2019 Jun 25

Bibliographical note

Funding Information:
This work was supported by the Korea Electric Power Corporation and by the Global Frontier Program through the Global Frontier Hybrid Interface Materials (GFHIM) project (grant number 2013M3A6B1078870) of the National Research Foundation of Korea (NRF), which is funded by the Ministry of Science, ICT, & Future Planning.

Funding Information:
This work was supported by the Korea Electric Power Corporation and by the Global Frontier Program through the Global Frontier Hybrid Interface Materials (GFHIM) project (grant number 2013M3A6B1078870 ) of the National Research Foundation of Korea (NRF), which is funded by the Ministry of Science, ICT, & Future Planning .

Publisher Copyright:
© 2019 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2019.03.198

Cite this

@article{59f40caee47f40739013a1847a989d66,

title = "Correlation between thermoelectric transport properties and crystal structure in two-dimensional CrSiTe3",

abstract = "The thermoelectric transport properties of artificially textured polycrystalline CrSiTe3 samples have been investigated for elucidating their correlations with a crystal structure and the corresponding charge density distribution. We verified that the low mobility of 13–27 cm2 V−1 s−1 attributing poor electronic transport properties is originated from the discrete charge density distribution in the covalently bonded layer. Also, the modulation of thermal conductivity values from 3.5 to 5.4 W m−1 K−1 with varying the texture was confirmed in pristine CrSiTe3. Thus, we suggest that the electronic and thermal transport properties of layer structured CrSiTe3 are strongly correlated with crystallographic features.",

author = "Lee, {Kyu Hyoung} and Yu, {Ho Sung} and Kim, {Sang Il} and Moon, {Seung Pil} and Hwang, {Jae Yeol} and Kim, {Sung Wng}",

note = "Funding Information: This work was supported by the Korea Electric Power Corporation and by the Global Frontier Program through the Global Frontier Hybrid Interface Materials (GFHIM) project (grant number 2013M3A6B1078870) of the National Research Foundation of Korea (NRF), which is funded by the Ministry of Science, ICT, & Future Planning. Funding Information: This work was supported by the Korea Electric Power Corporation and by the Global Frontier Program through the Global Frontier Hybrid Interface Materials (GFHIM) project (grant number 2013M3A6B1078870 ) of the National Research Foundation of Korea (NRF), which is funded by the Ministry of Science, ICT, & Future Planning . Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = jun,

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doi = "10.1016/j.jallcom.2019.03.198",

language = "English",

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AU - Lee, Kyu Hyoung

AU - Yu, Ho Sung

AU - Kim, Sang Il

AU - Moon, Seung Pil

AU - Hwang, Jae Yeol

AU - Kim, Sung Wng

N1 - Funding Information: This work was supported by the Korea Electric Power Corporation and by the Global Frontier Program through the Global Frontier Hybrid Interface Materials (GFHIM) project (grant number 2013M3A6B1078870) of the National Research Foundation of Korea (NRF), which is funded by the Ministry of Science, ICT, & Future Planning. Funding Information: This work was supported by the Korea Electric Power Corporation and by the Global Frontier Program through the Global Frontier Hybrid Interface Materials (GFHIM) project (grant number 2013M3A6B1078870 ) of the National Research Foundation of Korea (NRF), which is funded by the Ministry of Science, ICT, & Future Planning . Publisher Copyright: © 2019 Elsevier B.V.

PY - 2019/6/25

Y1 - 2019/6/25

N2 - The thermoelectric transport properties of artificially textured polycrystalline CrSiTe3 samples have been investigated for elucidating their correlations with a crystal structure and the corresponding charge density distribution. We verified that the low mobility of 13–27 cm2 V−1 s−1 attributing poor electronic transport properties is originated from the discrete charge density distribution in the covalently bonded layer. Also, the modulation of thermal conductivity values from 3.5 to 5.4 W m−1 K−1 with varying the texture was confirmed in pristine CrSiTe3. Thus, we suggest that the electronic and thermal transport properties of layer structured CrSiTe3 are strongly correlated with crystallographic features.

AB - The thermoelectric transport properties of artificially textured polycrystalline CrSiTe3 samples have been investigated for elucidating their correlations with a crystal structure and the corresponding charge density distribution. We verified that the low mobility of 13–27 cm2 V−1 s−1 attributing poor electronic transport properties is originated from the discrete charge density distribution in the covalently bonded layer. Also, the modulation of thermal conductivity values from 3.5 to 5.4 W m−1 K−1 with varying the texture was confirmed in pristine CrSiTe3. Thus, we suggest that the electronic and thermal transport properties of layer structured CrSiTe3 are strongly correlated with crystallographic features.

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