Figure 4

Room temperature spectroscopic characteristics. (a) PL emission spectrum of Si/MoS₂, AgPO₃, and AgPO₃:MoS₂. (b) PL intensity ratio of AgPO₃:MoS₂ and Si/MoS₂ samples. (c) Absorption spectra of NaPO₃, and NaPO₃:MoS₂ (Inset: Magnified spectra of MoS₂ excitonic peaks in NaPO₃:MoS₂) and (d) PL emission spectrum of NaPO₃:MoS₂.