Photothermal electric effect of multilayer MoS2-graphene heterojunction

Joon Young Kwak; Jeonghyun Hwang; Brian Calderon; Hussain Alsalman; Brian Schutter; Michael G. Spencer

doi:10.1109/DRC.2015.7175585

Photothermal electric effect of multilayer MoS₂-graphene heterojunction

Joon Young Kwak, Jeonghyun Hwang, Brian Calderon, Hussain Alsalman, Brian Schutter, Michael G. Spencer

Semiconductor Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Due to the exceptional electrical and optical properties of graphene, public interest has grown rapidly since the material was exfoliated onto SiO₂ in 2004 [1-3]. Other two dimensional (2D) crystal materials such as MoS₂, hBN, and WSe₂, individually or in combination with graphene, also have shown intriguing properties. One of the interesting applications is using the 2D heterojunction as a photodetector. There have been literatures reported on graphene-MoS₂ heterojunction photodetectors, claiming the photoresponse mechanism as a photovoltaic effect (PV), which is due to the separation of electron-hole pairs created in MoS₂ at less than 700 nm wavelengths [4, 5]. In this paper, we report photothermal electric effect (PTE) of a multilayer MoS₂-graphene heterojunction photodetector based on the large differences of Seebeck coefficients between MoS₂ (-700 μV/K) [6] and graphene (-50 μV/K) [7].

Original language	English
Title of host publication	73rd Annual Device Research Conference, DRC 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	121-122
Number of pages	2
ISBN (Electronic)	9781467381345
DOIs	https://doi.org/10.1109/DRC.2015.7175585
State	Published - 3 Aug 2015
Event	73rd Annual Device Research Conference, DRC 2015 - Columbus, United States Duration: 21 Jun 2015 → 24 Jun 2015

Publication series

Name	Device Research Conference - Conference Digest, DRC
Volume	2015-August
ISSN (Print)	1548-3770

Conference

Conference	73rd Annual Device Research Conference, DRC 2015
Country/Territory	United States
City	Columbus
Period	21/06/15 → 24/06/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

Keywords

Electric fields
Junctions
Silicon
Substrates
Thickness measurement

Access to Document

10.1109/DRC.2015.7175585

Cite this

Kwak, J. Y., Hwang, J., Calderon, B., Alsalman, H., Schutter, B., & Spencer, M. G. (2015). Photothermal electric effect of multilayer MoS₂-graphene heterojunction. In 73rd Annual Device Research Conference, DRC 2015 (pp. 121-122). Article 7175585 (Device Research Conference - Conference Digest, DRC; Vol. 2015-August). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/DRC.2015.7175585

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title = "Photothermal electric effect of multilayer MoS2-graphene heterojunction",

abstract = "Due to the exceptional electrical and optical properties of graphene, public interest has grown rapidly since the material was exfoliated onto SiO2 in 2004 [1-3]. Other two dimensional (2D) crystal materials such as MoS2, hBN, and WSe2, individually or in combination with graphene, also have shown intriguing properties. One of the interesting applications is using the 2D heterojunction as a photodetector. There have been literatures reported on graphene-MoS2 heterojunction photodetectors, claiming the photoresponse mechanism as a photovoltaic effect (PV), which is due to the separation of electron-hole pairs created in MoS2 at less than 700 nm wavelengths [4, 5]. In this paper, we report photothermal electric effect (PTE) of a multilayer MoS2-graphene heterojunction photodetector based on the large differences of Seebeck coefficients between MoS2 (-700 μV/K) [6] and graphene (-50 μV/K) [7].",

keywords = "Electric fields, Junctions, Silicon, Substrates, Thickness measurement",

author = "Kwak, {Joon Young} and Jeonghyun Hwang and Brian Calderon and Hussain Alsalman and Brian Schutter and Spencer, {Michael G.}",

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doi = "10.1109/DRC.2015.7175585",

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Kwak, JY, Hwang, J, Calderon, B, Alsalman, H, Schutter, B & Spencer, MG 2015, Photothermal electric effect of multilayer MoS₂-graphene heterojunction. in 73rd Annual Device Research Conference, DRC 2015., 7175585, Device Research Conference - Conference Digest, DRC, vol. 2015-August, Institute of Electrical and Electronics Engineers Inc., pp. 121-122, 73rd Annual Device Research Conference, DRC 2015, Columbus, United States, 21/06/15. https://doi.org/10.1109/DRC.2015.7175585

Photothermal electric effect of multilayer MoS₂-graphene heterojunction. / Kwak, Joon Young; Hwang, Jeonghyun; Calderon, Brian et al.
73rd Annual Device Research Conference, DRC 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 121-122 7175585 (Device Research Conference - Conference Digest, DRC; Vol. 2015-August).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Schutter, Brian

AU - Spencer, Michael G.

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N2 - Due to the exceptional electrical and optical properties of graphene, public interest has grown rapidly since the material was exfoliated onto SiO2 in 2004 [1-3]. Other two dimensional (2D) crystal materials such as MoS2, hBN, and WSe2, individually or in combination with graphene, also have shown intriguing properties. One of the interesting applications is using the 2D heterojunction as a photodetector. There have been literatures reported on graphene-MoS2 heterojunction photodetectors, claiming the photoresponse mechanism as a photovoltaic effect (PV), which is due to the separation of electron-hole pairs created in MoS2 at less than 700 nm wavelengths [4, 5]. In this paper, we report photothermal electric effect (PTE) of a multilayer MoS2-graphene heterojunction photodetector based on the large differences of Seebeck coefficients between MoS2 (-700 μV/K) [6] and graphene (-50 μV/K) [7].

AB - Due to the exceptional electrical and optical properties of graphene, public interest has grown rapidly since the material was exfoliated onto SiO2 in 2004 [1-3]. Other two dimensional (2D) crystal materials such as MoS2, hBN, and WSe2, individually or in combination with graphene, also have shown intriguing properties. One of the interesting applications is using the 2D heterojunction as a photodetector. There have been literatures reported on graphene-MoS2 heterojunction photodetectors, claiming the photoresponse mechanism as a photovoltaic effect (PV), which is due to the separation of electron-hole pairs created in MoS2 at less than 700 nm wavelengths [4, 5]. In this paper, we report photothermal electric effect (PTE) of a multilayer MoS2-graphene heterojunction photodetector based on the large differences of Seebeck coefficients between MoS2 (-700 μV/K) [6] and graphene (-50 μV/K) [7].

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