Gate-tunable, high-responsivity, and room-temperature infrared photodetectors based on a graphene-Bi2Se3 heterostructure

Jaeseok Kim; Houk Jang; Nikesh Koirala; Sangwan Sim; Jae Bok Lee; Un Jeong Kim; Hyangsook Lee; Soonyoung Cha; Chihun In; Jun Park; Jekwan Lee; Matthew Brahlek; Jisoo Moon; Maryam Salehi; Seongshik Oh; Jong Hyun Ahn; Sungwoo Hwang; Dohun Kim; Hyunyong Choi

Gate-tunable, high-responsivity, and room-temperature infrared photodetectors based on a graphene-Bi₂Se₃ heterostructure

Jaeseok Kim, Houk Jang, Nikesh Koirala, Sangwan Sim, Jae Bok Lee, Un Jeong Kim, Hyangsook Lee, Soonyoung Cha, Chihun In, Jun Park, Jekwan Lee, Matthew Brahlek, Jisoo Moon, Maryam Salehi, Seongshik Oh, Jong Hyun Ahn, Sungwoo Hwang, Dohun Kim, Hyunyong Choi

Research output: Contribution to journal › Conference article › peer-review

Abstract

We demonstrate infrared photodetectors based on graphene-Bi₂Se₃ heterostructures with high responsivity (≥1.9 A/W) at room temperature. Strong photogating effect across the tunneling barrier and built-in potential enables the internal quantum efficiency larger than 100 %.

Original language	English
Article number	SF2E.3
Journal	Optics InfoBase Conference Papers
State	Published - 2016
Externally published	Yes
Event	CLEO: Science and Innovations, SI 2016 - San Jose, United States Duration: Jun 5 2016 → Jun 10 2016

Cite this

Kim, J., Jang, H., Koirala, N., Sim, S., Lee, J. B., Kim, U. J., Lee, H., Cha, S., In, C., Park, J., Lee, J., Brahlek, M., Moon, J., Salehi, M., Oh, S., Ahn, J. H., Hwang, S., Kim, D., & Choi, H. (2016). Gate-tunable, high-responsivity, and room-temperature infrared photodetectors based on a graphene-Bi₂Se₃ heterostructure. Optics InfoBase Conference Papers, Article SF2E.3.

@article{d22326c6061541c7b342e387257cd9eb,

title = "Gate-tunable, high-responsivity, and room-temperature infrared photodetectors based on a graphene-Bi2Se3 heterostructure",

abstract = "We demonstrate infrared photodetectors based on graphene-Bi2Se3 heterostructures with high responsivity (≥1.9 A/W) at room temperature. Strong photogating effect across the tunneling barrier and built-in potential enables the internal quantum efficiency larger than 100 %.",

author = "Jaeseok Kim and Houk Jang and Nikesh Koirala and Sangwan Sim and Lee, {Jae Bok} and Kim, {Un Jeong} and Hyangsook Lee and Soonyoung Cha and Chihun In and Jun Park and Jekwan Lee and Matthew Brahlek and Jisoo Moon and Maryam Salehi and Seongshik Oh and Ahn, {Jong Hyun} and Sungwoo Hwang and Dohun Kim and Hyunyong Choi",

note = "Publisher Copyright: {\textcopyright} OSA 2016.; CLEO: Science and Innovations, SI 2016 ; Conference date: 05-06-2016 Through 10-06-2016",

year = "2016",

language = "English",

journal = "Optics InfoBase Conference Papers",

issn = "2162-2701",

}

TY - JOUR

T1 - Gate-tunable, high-responsivity, and room-temperature infrared photodetectors based on a graphene-Bi2Se3 heterostructure

AU - Kim, Jaeseok

AU - Jang, Houk

AU - Koirala, Nikesh

AU - Sim, Sangwan

AU - Lee, Jae Bok

AU - Kim, Un Jeong

AU - Lee, Hyangsook

AU - Cha, Soonyoung

AU - In, Chihun

AU - Park, Jun

AU - Lee, Jekwan

AU - Brahlek, Matthew

AU - Moon, Jisoo

AU - Salehi, Maryam

AU - Oh, Seongshik

AU - Ahn, Jong Hyun

AU - Hwang, Sungwoo

AU - Kim, Dohun

AU - Choi, Hyunyong

PY - 2016

Y1 - 2016

N2 - We demonstrate infrared photodetectors based on graphene-Bi2Se3 heterostructures with high responsivity (≥1.9 A/W) at room temperature. Strong photogating effect across the tunneling barrier and built-in potential enables the internal quantum efficiency larger than 100 %.

AB - We demonstrate infrared photodetectors based on graphene-Bi2Se3 heterostructures with high responsivity (≥1.9 A/W) at room temperature. Strong photogating effect across the tunneling barrier and built-in potential enables the internal quantum efficiency larger than 100 %.

UR - http://www.scopus.com/inward/record.url?scp=85136570938&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85136570938

SN - 2162-2701

JO - Optics InfoBase Conference Papers

JF - Optics InfoBase Conference Papers

M1 - SF2E.3

T2 - CLEO: Science and Innovations, SI 2016

Y2 - 5 June 2016 through 10 June 2016

ER -

Gate-tunable, high-responsivity, and room-temperature infrared photodetectors based on a graphene-Bi₂Se₃ heterostructure

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