Figure 1
From: Strongly confined localized surface plasmon resonance (LSPR) bands of Pt, AgPt, AgAuPt nanoparticles
Fabrication process of monometallic and multimetallic alloy NPs along with the concurrent effect of interdiffusion, dewetting and sublimation. (a) Schematics of deposition of Ag/Pt and Ag/Au/Pt multilayers on sapphire (0001). (a-1) Atomic interdiffusion at low annealing temperature. (b) Formation of alloy nanoparticles (NPs) and concurrent sublimation of Ag atoms. (c) Formation of Pt and AuPt NPs after Ag sublimation. (d) Comparison of extinction of typical AgPt and Pt NPs. (e) Local e-field distribution of typical Pt NP by the finite difference time domain (FDTD) simulation.
