Controlled-layer and large-area MoS_2 films encapsulated Au nanoparticle hybrids for SERS | Zendy

Zhen Li | Zendy; Shouzhen Jiang | Zendy; Yanyan Huo | Zendy; Mei Liu | Zendy; Cheng Yang | Zendy; Chao Zhang | Zendy; Xiaoyun Liu | Zendy; Yingqing Sheng | Zendy; Chonghui Li | Zendy; Baoyuan Man | Zendy

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Controlled-layer and large-area MoS_2 films encapsulated Au nanoparticle hybrids for SERS

Author(s) -

Zhen Li,

Shouzhen Jiang,

Yanyan Huo,

Mei Liu,

Cheng Yang,

Chao Zhang,

Xiaoyun Liu,

Yingqing Sheng,

Chonghui Li,

Baoyuan Man

Publication year - 2016

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.24.026097

Subject(s) - materials science , monolayer , rhodamine 6g , raman spectroscopy , high resolution transmission electron microscopy , crystal violet , layer (electronics) , nanoparticle , nanotechnology , surface enhanced raman spectroscopy , optoelectronics , raman scattering , chemical engineering , molecule , optics , transmission electron microscopy , chemistry , organic chemistry , medicine , physics , pathology , engineering

In this work, a facile and effective method for controlled-layer and large-area MoS 2 films encapsulated Au nanoparticle hybrids is developed. With accurate Ar plasma treatment time control, the large-area MoS 2 layers can be obtained from monolayer to trilayer. The fabricated MoS 2 @Au NPs with higher surface area exhibit excellent Raman enhanced effect for aromatic organic molecules (rhodamine 6G and crystal violet) and achieve the best when the monolayer MoS 2 @AuNPs was obtained. The limit of detection is found to be as low as 1 × 10 -10 M. The MoS 2 @AuNPs was characterized by SEM, EDS, AFM, Raman spectroscopy, UV-Vis, XRD and HRTEM.

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