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

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

doi:10.1364/cleo_si.2016.sf2e.3

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

Kim, Jaeseok;
Jang, Houk;
Koirala, Nikesh;
Sim, Sangwan;
Lee, Jae-bok;
외 14명

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초록

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 %.

키워드

TOPOLOGICAL INSULATORS; PLASMONS

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

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

DOI: 10.1364/cleo_si.2016.sf2e.3

발행일: 2016-06

유형: Proceedings Paper

저널명: 2016 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)

페이지: 1-2

언어: ENG

출판사: IEEE

발행국가: 미국

ISSN: P 2160-9020