Observation of a new type of aggregation-induced emission in nanoclusters.

ABSTRACT: The strategy of aggregation-induced emission (AIE) has been widely used to enhance the photo-luminescence (PL) in the nanocluster (NC) research field. Most of the previous reports on aggregation-induced enhancement of fluorescence in NCs are induced by the restriction of intramolecular motion (RIM). In this work, a novel mechanism involving the restriction of the "dissociation-aggregation pattern" of ligands is presented using a Ag₂₉(BDT)₁₂(TPP)₄ NC (BDT: 1,3-benzenedithiol; TPP: triphenylphosphine) as a model. By the addition of TPP into an N,N-dimethylformamide solution of Ag₂₉(BDT)₁₂(TPP)₄, the PL intensity of the Ag₂₉(BDT)₁₂(TPP)₄ NC could be significantly enhanced (13 times

SUBMITTER: Kang X 

PROVIDER: S-EPMC5916020 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature