Enhanced photoluminescence of MoS2–Au nanostructures: Nanotriangle and nanohole arrays

Jungeun Song, Soyeong Kwon, Eunah Kim, Bora Kim, Dong Wook Kim, Seong Yeon Lee, Ki Ju Yee

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We investigated the photoluminescence (PL) characteristics of MoS2–Au hybrid nanostructures, fabricated by nanosphere lithography and wet-transfer techniques. Two kinds of Au nanostructures - such as nanotriangles (NTs) and nanoholes (NHs) - were fabricated for comparison. MoS2 monolayers on both NT and NH arrays exhibited enhanced PL intensity, compared with those on SiO2/Si substrates and flat Au thin films. Numerical simulations revealed clear distinction in the electric field intensity distributions in the NT and NH arrays at the PL excitation wavelength. Such difference could be attributed to the excitation of localized and propagating surface plasmon in the NT and NH arrays. This work helps us to understand how the plasmonic NT and NH arrays affect the physical properties of the MoS2 monolayers on them.

Original languageEnglish
Pages (from-to)703-706
Number of pages4
JournalCurrent Applied Physics
Volume20
Issue number5
DOIs
StatePublished - May 2020

Keywords

  • MoS
  • Nanosphere lithography
  • Nanostructures
  • Photoluminescence

Fingerprint

Dive into the research topics of 'Enhanced photoluminescence of MoS2–Au nanostructures: Nanotriangle and nanohole arrays'. Together they form a unique fingerprint.

Cite this