A new stress-driven structural collapse and etching mechanism for the synthesis of Au nanorings via a direct one-pot solution-based chemical reaction is presented. The nanoparticle-mediated recrystallization process contributes to the formation of Au nanoframes that contain unusual stress, which promotes the breakup of the nanoframes and conversion into Au nanorings. The Au nanorings have tunable hole sizes and exhibit interesting localized surface plasmon features owing to the coupling of bonding and antibonding modes on the inner and outer surfaces of the nanorings.
- Jixiang Fang
- Jiang Li
- Zhiyuan Li
