Plasmonically enhanced photoluminescence of monolayer MoS2 via nanosphere lithography-templated gold metasurfaces

Nanophotonics

卷:10

Yin Zhen¹  Wang Jiawei¹  Fang Xiaoguo¹  Shum Ping¹  Liu Jianxun¹  Wang Zhenming¹  Luo Dan¹  He Huilin¹  Liu Yan Jun¹  Zhao Meng²  Yin Zongyou³  Jiang Shouzhen⁴ 

[1] Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen518055, China;

[2] Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), Singapore138634, Singapore;

[3] Research School of Chemistry, The Australian National University, Canberra, Australian Capital Territory2601, Australia;

[4] Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan250014, China;

关键词: metasurface;    mos2;    self-assembly;    surface plasmon;    photoluminescence;   

DOI  :  10.1515/nanoph-2020-0672

来源: DOAJ

【 摘 要 】

We demonstrate a simple, cost-effective method to enhance the photoluminescence intensity of monolayer MoS2. A hexagonal symmetric Au metasurface, made by polystyrene nanosphere lithography and metal coating, is developed to enhance the photoluminescence intensity of monolayer MoS2. By using nanospheres of different sizes, the localized surface plasmon resonances of the Au metasurfaces can be effectively tuned. By transferring monolayer MoS2 onto the Au metasurface, the photoluminescence signal of the monolayer MoS2 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】

Unknown