Rapid controllable synthesis of branched Au superparticles: formation mechanism of toggling the growth mode and their applications in optical broadband absorption

• Main Authors: Zhong, Shichuan, Hang, Lifeng, Wen, Lulu, Zhang, Tao, Cao, An, Zeng, Pan, Zhang, Hanlin, Liu, Dilong, Cai, Weiping, Li, Yue
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2023
• Subjects: Science::Physics; Infrared Devices; Plasmonics
• Online Access: https://hdl.handle.net/10356/169837
• Institution: Nanyang Technological University

We develop a tunable, ultrafast (5 seconds), and mass-producible seed-mediated synthesis method to prepare branched Au superparticles consisting of multiple small Au island-like nanoparticles by a wet chemical route. We reveal and confirm the toggling formation mechanism of Au superparticles between...