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- Title
Time-Dependent Aggregation-Induced Enhanced Emission, Absorption Spectral Broadening, and Aggregation Morphology of a Novel Perylene Derivative with a Large D-π-A Structure.
- Authors
Yang, Long; Yu, Yuyan; Zhang, Jin; Ge, Feijie; Zhang, Jianling; Jiang, Long; Gao, Fang; Dan, Yi
- Abstract
Strong aggregation-caused quenching of perylene diimides (PDI) is changed successfully by simple chemical modification with two quinoline moieties through CC at the bay positions to obtain aggregation-induced enhanced emission (AIEE) of a perylene derivative ( Cya-PDI) with a large π-conjugation system. Cya-PDI is weakly luminescent in the well-dispersed CH3CN or THF solutions and exhibits an evident time-dependent AIEE and absorption spectra broadening in the aggregated state. In addition, morphological inspection demonstrates that the morphology of the aggregated form of Cya-PDI molecules changed from plate-shaped to rod-like aggregates under the co-effects of time and water. An edge-to-face arrangement of aggregation was proposed and discussed. The fact that the Cya-PDI aggregates show a broad absorption covering the whole visible-light range and strong intermolecular interaction through π-π stacking in the solid state makes them promising materials for optoelectric applications.
- Subjects
PERYLENE derivatives; STACKING interactions; ORGANIC dyes; QUENCHING (Chemistry); FLUORESCENCE; ABSORPTION spectra
- Publication
Chemistry - An Asian Journal, 2015, Vol 10, Issue 5, p1215
- ISSN
1861-4728
- Publication type
Article
- DOI
10.1002/asia.201500056