Multicolor Luminescence of a Polyurethane Derivative Driven by Heat/Light-Induced Aggregation.

ABSTRACT: The study of aggregate formation and its controllable effect on luminescence behavior has a far-reaching influence in establishing a universal aggregation photophysical mechanism. In this paper, we obtained clusters with different extents of aggregation by heat-induced or light-triggered aggregation of a new polyurethane derivative (PUE). The controllable regulation of multicolor fluorescence of a single (nondoped) polymeric material is realized. The luminescence behavior of PUE varies with microscopic control of the aggregation structure. Compared with the powder state, the enhanced atom-atom and group-group interactions of PUE-gel effectively limit the nonradiative transitions in the excited state and result in a red-shift in emission. This work avoids complex organi

SUBMITTER: Jiang N 

PROVIDER: S-EPMC10569097 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature