Enhanced photoluminescence of MoS2-Au nanostructures: Nanotriangle and nanohole arrays
- 주제(키워드) Photoluminescence , MoS2 , Nanosphere lithography , Nanostructures
- 주제(기타) Materials Science, Multidisciplinary
- 주제(기타) Physics, Applied
- 설명문(일반) [Song, Jungeun; Kwon, Soyeong; Kim, Eunah; Kim, Bora; Kim, Dong-Wook] Ewha Womans Univ, Dept Phys, Seoul 03760, South Korea; [Lee, Seong-Yeon; Yee, Ki-Ju] Chungnam Natl Univ, Dept Phys, Daejeon 34134, South Korea
- 등재 SCIE, SCOPUS, KCI등재
- 발행기관 ELSEVIER
- 발행년도 2020
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000168724
- 본문언어 영어
- Published As https://dx.doi.org/10.1016/j.cap.2020.03.003
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
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.
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