Identification of plasmon-driven nanoparticle-coalescence-dominated growth of gold nanoplates through nanopore sensing.

ABSTRACT: The fascinating phenomenon that plasmon excitation can convert isotropic silver nanospheres to anisotropic nanoprisms has already been developed into a general synthetic technique since the discovery in 2001. However, the mechanism governing the morphology conversion is described with different reaction processes. So far, the mechanism based on redox reactions dominated anisotropic growth by plasmon-produced hot carriers is widely accepted and developed. Here, we successfully achieved plasmon-driven high yield conversion of gold nanospheres into nanoplates with iodine as the inducer. To investigate the mechanism, nanopore sensing technology is established to statistically study the intermediate species at the single-nanoparticle level. Surprisingly, the morphology conversion is proved as a

SUBMITTER: Huang B 

PROVIDER: S-EPMC8931024 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature