Figure 1From: Platinum Assisted Vapor–Liquid–Solid Growth of Er–Si Nanowires and Their Optical PropertiesSEM images of Er–SiNWs grown with a Pt- and b Au-catalyst.Inset shows the alloy globule at the tip of Er–SiNWs. c TEM image of an individual Er–SiNW grown with Pt, showing the core–shell structure with shell layer conducted with <2 nm Er-rich crystalline layer within amorphous SiO x layer.Inset shows HR-TEM image of SiNWs showing the single crystalline nature of Er–SiNWs with Er-crystalline layers with 1–2 nm within amorphous SiO x shellBack to article page