|Title||Prospects of Utilizing Quantum Emitters to Control the Absorption of Non-Noble Plasmonic Metal Nanoparticles|
|Publication Type||Journal Article|
|Year of Publication||2022|
|Authors||Steinfeld, L, Hapuarachchi, H, Cole, JH|
|Journal||Annalen der Physik|
|Type of Article||Journal|
Prospects of controlling the absorption of the cost-effective plasmonic metal nanoparticles (MNPs) Cu and Al using quantum emitters (QEs) are demonstrated semi-analytically. The resulting spectra are compared with the absorption of commonly used noble plasmonic metal nanoparticles Au and Ag under similar conditions. It is observed that Cu and Au-based plasmonic nanoparticles exhibit largely similar exciton–plasmon Fano interaction signatures in addition to their similar spectral regions of operation (lower end of the visible range). Furthermore, the QE-enhanced maximum absorption(Fano maximum) of Cu-based nanohybrids is seen to approach the maximum absorption level of isolated Au MNPs, with decreasing QE-Cuseparation, increasing QE dipole element magnitude, and increasing medium permittivity, in the parameter region considered. This renders Cu based exciton–plasmon nanohybrids as more economical alternatives for Au MNPsand Au-based nanohybrids in absorption-based applications (such as thermo-plasmonic) when stabilized in protective embedding media such as poly (methyl methacrylate) (PMMA).