Plasmonically enhanced photoluminescence of monolayer MoS 2 via nanosphere lithography-templated gold metasurfaces

Nanophotonics

article

Zhenming Wang¹  Dan Luo¹  Ping Shum¹  Yan Jun Liu¹  Jianxun Liu¹  Xiaoguo Fang¹  Jiawei Wang¹  Zhen Yin¹  Huilin He¹  Shouzhen Jiang⁴  Meng Zhao⁵  Zongyou Yin⁶ 

[1] Department of Electrical and Electronic Engineering, Southern University of Science and Technology;Key Laboratory of Energy Conversion and Storage Technologies (Southern University of Science and Technology), Ministry of Education;Harbin Institute of Technology;Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University;Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR);Research School of Chemistry, The Australian National University

关键词: metasurface;    MoS2;    self-assembly;    surface plasmon;    photoluminescence;   

DOI  :  10.1515/nanoph-2020-0672

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

We demonstrate a simple, cost-effective method to enhance the photoluminescence intensity of monolayer MoS 2 . A hexagonal symmetric Au metasurface, made by polystyrene nanosphere lithography and metal coating, is developed to enhance the photoluminescence intensity of monolayer MoS 2 . By using nanospheres of different sizes, the localized surface plasmon resonances of the Au metasurfaces can be effectively tuned. By transferring monolayer MoS 2 onto the Au metasurface, the photoluminescence signal of the monolayer MoS 2 can be significantly enhanced up to 12-fold over a square-centimeter area. The simple, large-area, cost-effective fabrication technique could pave a new way for plasmon-enhanced light-mater interactions of atomically thin two-dimensional materials.

【 授权许可】

CC BY