Work

Aggregation‐Induced Emission with Long‐Lived Room‐Temperature Phosphorescence from Methylene‐Linked Organic Donor–Acceptor Structures

Year: 2018

Type: article

Abstract: Aggregation-caused quenching (ACQ), where excited-state and/or ground-state electronic structures are altered to exhibit an increased proclivity for non-radiative decay for the aggregates, is largely responsible for the lack of fluorescence and phosphorescence in molecular solids in general. Here we show that ACQ could be effectively circumvented by constructing an aromatic system with a methylene-linker, where the system exhibits typical aggregation-induced emission (AIE) with long-lived room-temperature phosphorescence, since the tetrahedral structure in the solid state may significantly reduce strong intermolecular interactions contributing to ACQ.

Source: Chemistry - An Asian Journal

DOI: 10.1002/asia.201801002

Authors: Biao Chen, Xuepeng Zhang, Yucai Wang, Hui Miao, Guoqing Zhang

Institution: University of Science and Technology of China

Language: English

Topic: Luminescence and Fluorescent Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funders: China Postdoctoral Science Foundation, Natural Science Foundation of Anhui Province, National Key Research and Development Program of China, Fundamental Research Funds for the Central Universities

Awards: G2148905548, G3870607511, G4150550462, G658291526