Gap plasmon-enhanced photoluminescence of monolayer MoS<sub>2</sub> in hybrid nanostructure

Gap plasmon-enhanced photoluminescence of monolayer MoS₂ in hybrid nanostructure

Yu Le^{1, 2}, Liu Di^{1, 2}, Qi Xiao-Zhuo^{1, 2}, Xiong Xiao^{1, 2}, Feng Lan-Tian^{1, 2}, Li Ming^{1, 2}, Guo Guo-Ping^{1, 2}, Guo Guang-Can^{1, 2}, Ren Xi-Feng^{1, 2, †}

(color online) (a) and (b)) Optical microscope (OM) and scanning electron microscope (SEM) images of the CVD-grown MoS₂ deposited on SiO₂/Si substrate. (c) Raman spectrum of CVD-MoS₂. (d) Typical PL spectrum of MoS₂ showing a strong emission peak at ∼670 nm.