Conformation-dependent dynamic organic phosphorescence through thermal energy driven molecular rotations.

ABSTRACT: Organic room-temperature phosphorescent (RTP) materials exhibiting reversible changes in optical properties upon exposure to external stimuli have shown great potential in diverse optoelectronic fields. Particularly, dynamic manipulation of response behaviors for such materials is of fundamental significance, but it remains a formidable challenge. Herein, a series of RTP polymers were prepared by incorporating phosphorescent rotors into polymer backbone, and these materials show color-tunable persistent luminescence upon excitation at different wavelengths. Experimental results and theoretical calculations revealed that the various molecular conformations of monomers are responsible for the excitation wavelength-dependent (Ex-De) RTP behavior. Impressively, after gaining insights into the

SUBMITTER: Wei J 

PROVIDER: S-EPMC9902600 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature