Highly stable localized surface plasmon resonance of Cu nanoparticles obtained <i>via</i> oxygen plasma irradiation
Yingcui Fang, Ben Bin Xu, Shuai Wang, Hongjun Liu, Jie Wang, Mengting Si
Abstract
oxygen plasma irradiation. A hemispheric core-shell structure of CuNPs uniformly covered by a dense CuO shell (CuNPs@d-CuO) was constructed. The 4 nm d-CuO shell can prevent CuNPs from further oxidation. As a result, the LSPR of the CuNPs is stable in air over 180 days.
Topics & Concepts
Surface plasmon resonanceNanoparticleMaterials scienceCopperPassivationIrradiationOxygenPhotochemistryPlasmonNanotechnologySurface plasmonResonance (particle physics)Visible spectrumChemical engineeringChemistryOptoelectronicsLayer (electronics)Organic chemistryMetallurgyNuclear physicsPhysicsEngineeringParticle physicsGold and Silver Nanoparticles Synthesis and ApplicationsCopper-based nanomaterials and applicationsPlasmonic and Surface Plasmon Research