A high response MoS2-graphene hetero-junction photodetector with broad spectral range

Joon Young Kwak; Jeonghyun Hwang; Matthew Graham; Hussain Alsalman; Nini Munoz; Brian Calderon; Dorr Campbell; Michael G. Spencer

doi:10.1109/DRC.2013.6633888

A high response MoS₂-graphene hetero-junction photodetector with broad spectral range

Joon Young Kwak, Jeonghyun Hwang, Matthew Graham, Hussain Alsalman, Nini Munoz, Brian Calderon, Dorr Campbell, Michael G. Spencer

Semiconductor Engineering

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

2 Scopus citations

Abstract

Two dimensional (2D) crystal materials like graphene, MoS₂, and hexagonal BN, have exciting electrical, mechanical, and optical properties [1]. Photo responses of 7.5mA/W [2] and 110mA/W [3] have been reported in MoS ₂ photodetectors. The upper limit of the spectral range in multi-layer MoS₂ detectors is approximately 700nm, which is determined by the material bandgap [4]. Graphene photodetectors have a wide spectral range from 300 to 2500nm [5] but they have a lower response (0.25mA/W [6] and 1mA/W [7]) than to MoS₂ devices. In this paper, we demonstrate a novel MoS₂-graphene hetero junction photodetector spanning a wide spectral response from visible to infrared with a photoconduction responsivity of 24.2mA/W at 520nm and 2.1mA/W at 1.01μm.

Original language	English
Title of host publication	71st Device Research Conference, DRC 2013 - Conference Digest
Edition	SUPPL.
DOIs	https://doi.org/10.1109/DRC.2013.6633888
State	Published - 2013
Event	71st Device Research Conference, DRC 2013 - Notre Dame, IN, United States Duration: 23 Jun 2013 → 26 Jun 2013

Publication series

Name	Device Research Conference - Conference Digest, DRC
Number	SUPPL.
ISSN (Print)	1548-3770

Conference

Conference	71st Device Research Conference, DRC 2013
Country/Territory	United States
City	Notre Dame, IN
Period	23/06/13 → 26/06/13

Access to Document

10.1109/DRC.2013.6633888

Cite this

Kwak, J. Y., Hwang, J., Graham, M., Alsalman, H., Munoz, N., Calderon, B., Campbell, D., & Spencer, M. G. (2013). A high response MoS₂-graphene hetero-junction photodetector with broad spectral range. In 71st Device Research Conference, DRC 2013 - Conference Digest (SUPPL. ed.). Article 6633888 (Device Research Conference - Conference Digest, DRC; No. SUPPL.). https://doi.org/10.1109/DRC.2013.6633888

@inproceedings{b55fd3d05d2d4e6a9c48746738ae2156,

title = "A high response MoS2-graphene hetero-junction photodetector with broad spectral range",

abstract = "Two dimensional (2D) crystal materials like graphene, MoS2, and hexagonal BN, have exciting electrical, mechanical, and optical properties [1]. Photo responses of 7.5mA/W [2] and 110mA/W [3] have been reported in MoS 2 photodetectors. The upper limit of the spectral range in multi-layer MoS2 detectors is approximately 700nm, which is determined by the material bandgap [4]. Graphene photodetectors have a wide spectral range from 300 to 2500nm [5] but they have a lower response (0.25mA/W [6] and 1mA/W [7]) than to MoS2 devices. In this paper, we demonstrate a novel MoS2-graphene hetero junction photodetector spanning a wide spectral response from visible to infrared with a photoconduction responsivity of 24.2mA/W at 520nm and 2.1mA/W at 1.01μm.",

author = "Kwak, {Joon Young} and Jeonghyun Hwang and Matthew Graham and Hussain Alsalman and Nini Munoz and Brian Calderon and Dorr Campbell and Spencer, {Michael G.}",

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series = "Device Research Conference - Conference Digest, DRC",

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Kwak, JY, Hwang, J, Graham, M, Alsalman, H, Munoz, N, Calderon, B, Campbell, D & Spencer, MG 2013, A high response MoS₂-graphene hetero-junction photodetector with broad spectral range. in 71st Device Research Conference, DRC 2013 - Conference Digest. SUPPL. edn, 6633888, Device Research Conference - Conference Digest, DRC, no. SUPPL., 71st Device Research Conference, DRC 2013, Notre Dame, IN, United States, 23/06/13. https://doi.org/10.1109/DRC.2013.6633888

A high response MoS₂-graphene hetero-junction photodetector with broad spectral range. / Kwak, Joon Young; Hwang, Jeonghyun; Graham, Matthew et al.
71st Device Research Conference, DRC 2013 - Conference Digest. SUPPL. ed. 2013. 6633888 (Device Research Conference - Conference Digest, DRC; No. SUPPL.).

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

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AU - Calderon, Brian

AU - Campbell, Dorr

AU - Spencer, Michael G.

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