Spectrally Selective Thermal Emission from Graphene Decorated with Metallic Nanoparticles

We showed in past work that nanopatterned monolayer graphene (NPG) enables spectrally selective thermal emission the mid-infrared (mid-IR) from 3 to 12 ?m. In case, spectral selection is realized by means of localized surface plasmon (LSP) resonances inside graphene. Here, we show decorated with metallic nanoparticles, such as Ag nanocubes or nanospheres, also realizes but, this acoustic plasmons (AGPs) between and nanoparticle a dielectric material. Our finite-difference time-domain (FDTD) calculations radiation can be tuned gate voltage into two different wavelength regimes, namely, atmospherically opaque regime ? = 5 8 ?m transparent This allows for electrical switching radiative heat trapping mode former cooling latter regime. theoretical results used develop graphene-based management systems smart fabrics.