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: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

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 languageEnglish
Title of host publication2016 Conference on Lasers and Electro-Optics, CLEO 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781943580118
DOIs
Publication statusPublished - 2016 Dec 16
Event2016 Conference on Lasers and Electro-Optics, CLEO 2016 - San Jose, United States
Duration: 2016 Jun 52016 Jun 10

Publication series

Name2016 Conference on Lasers and Electro-Optics, CLEO 2016

Other

Other2016 Conference on Lasers and Electro-Optics, CLEO 2016
CountryUnited States
CitySan Jose
Period16/6/516/6/10

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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