Nature Communications (Oct 2019)

Ultrasensitive MoS2 photodetector by serial nano-bridge multi-heterojunction

  • Ki Seok Kim,
  • You Jin Ji,
  • Ki Hyun Kim,
  • Seunghyuk Choi,
  • Dong-Ho Kang,
  • Keun Heo,
  • Seongjae Cho,
  • Soonmin Yim,
  • Sungjoo Lee,
  • Jin-Hong Park,
  • Yeon Sik Jung,
  • Geun Young Yeom

DOI
https://doi.org/10.1038/s41467-019-12592-w
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 10

Abstract

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Fabrication of photodetector devices by selective etching of 2D materials can enable broadband detection. Here, the authors design mono- and multi-layer nano-bridge multi-heterojunction photodetectors based on MoS2 with high responsivities of 2.67 × 106 A/W and 1.65 × 104 A/W in the visible–infrared wavelength range and fast photoresponse.