Compositional effect in pentagonal layered PdSe2                             -xSx solid-solutions and their transport properties

Jung Hyun Ryu; Kyu Hyoung Lee; Seok won Hong; Jeong Yun Hwang; Yeonjin Yi; Seongil Im; Sang il Kim; Se Yun Kim; Kimoon Lee

doi:10.1016/j.scriptamat.2020.02.030

Compositional effect in pentagonal layered PdSe₂ _-xS_x solid-solutions and their transport properties

Jung Hyun Ryu, Kyu Hyoung Lee, Seok won Hong, Jeong Yun Hwang, Yeonjin Yi, Seongil Im, Sang il Kim, Se Yun Kim, Kimoon Lee

Department of Materials Science and Engineering

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

5 Scopus citations

Abstract

Authors report the synthesis of PdSe_2- _xS_x solid-solutions (0 ≤ x ≤ 0.86) with pentagonal layered structure and their transport properties. From structural and optical characterizations, it can be confirmed that S atoms are successfully substituted on Se-site in the parent phase of PdSe₂. By analyzing the electrical and thermal transport characteristics, it reveals that the density of states effective mass as well as band gap of PdSe_2- _xS_x can be controlled by varying x. It strongly suggests that S substitution can be an effective compositional tuning approach for engineering the electronic band structure in pentagonal layered PdSe₂ system.

Original language	English
Pages (from-to)	6-10
Number of pages	5
Journal	Scripta Materialia
Volume	182
DOIs	https://doi.org/10.1016/j.scriptamat.2020.02.030
State	Published - Jun 2020

Keywords

Band structure engineering
Electrical transport
PdSe
Solid-solution
Two-dimensional materials

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10.1016/j.scriptamat.2020.02.030

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title = "Compositional effect in pentagonal layered PdSe2 -xSx solid-solutions and their transport properties",

abstract = "Authors report the synthesis of PdSe2- xSx solid-solutions (0 ≤ x ≤ 0.86) with pentagonal layered structure and their transport properties. From structural and optical characterizations, it can be confirmed that S atoms are successfully substituted on Se-site in the parent phase of PdSe2. By analyzing the electrical and thermal transport characteristics, it reveals that the density of states effective mass as well as band gap of PdSe2- xSx can be controlled by varying x. It strongly suggests that S substitution can be an effective compositional tuning approach for engineering the electronic band structure in pentagonal layered PdSe2 system.",

keywords = "Band structure engineering, Electrical transport, PdSe, Solid-solution, Two-dimensional materials",

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doi = "10.1016/j.scriptamat.2020.02.030",

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T1 - Compositional effect in pentagonal layered PdSe2 -xSx solid-solutions and their transport properties

AU - Ryu, Jung Hyun

AU - Lee, Kyu Hyoung

AU - Hong, Seok won

AU - Hwang, Jeong Yun

AU - Yi, Yeonjin

AU - Im, Seongil

AU - Kim, Sang il

AU - Kim, Se Yun

AU - Lee, Kimoon

PY - 2020/6

Y1 - 2020/6

N2 - Authors report the synthesis of PdSe2- xSx solid-solutions (0 ≤ x ≤ 0.86) with pentagonal layered structure and their transport properties. From structural and optical characterizations, it can be confirmed that S atoms are successfully substituted on Se-site in the parent phase of PdSe2. By analyzing the electrical and thermal transport characteristics, it reveals that the density of states effective mass as well as band gap of PdSe2- xSx can be controlled by varying x. It strongly suggests that S substitution can be an effective compositional tuning approach for engineering the electronic band structure in pentagonal layered PdSe2 system.

AB - Authors report the synthesis of PdSe2- xSx solid-solutions (0 ≤ x ≤ 0.86) with pentagonal layered structure and their transport properties. From structural and optical characterizations, it can be confirmed that S atoms are successfully substituted on Se-site in the parent phase of PdSe2. By analyzing the electrical and thermal transport characteristics, it reveals that the density of states effective mass as well as band gap of PdSe2- xSx can be controlled by varying x. It strongly suggests that S substitution can be an effective compositional tuning approach for engineering the electronic band structure in pentagonal layered PdSe2 system.

KW - Band structure engineering

KW - Electrical transport

KW - PdSe

KW - Solid-solution

KW - Two-dimensional materials

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DO - 10.1016/j.scriptamat.2020.02.030

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JO - Scripta Materialia

JF - Scripta Materialia

ER -

Compositional effect in pentagonal layered PdSe₂ _-xS_x solid-solutions and their transport properties

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Keywords

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