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- Title
Dynamically Modulating the Dissymmetry Factor of Circularly Polarized Organic Ultralong Room‐Temperature Phosphorescence from Soft Helical Superstructures.
- Authors
Liu, Jiao; Wu, Jun‐Jie; Wei, Juan; Huang, Zhi‐Jun; Zhou, Xin‐Yu; Bao, Jin‐Ying; Lan, Ruo‐Chen; Ma, Yun; Li, Bing‐Xiang; Yang, Huai; Lu, Yan‐Qing; Zhao, Qiang
- Abstract
Achieving circularly polarized organic ultralong room‐temperature phosphorescence (CP‐OURTP) with a high luminescent dissymmetry factor (glum) is crucial for diverse optoelectronic applications. In particular, dynamically controlling the dissymmetry factor of CP‐OURTP can profoundly advance these applications, but it is still unprecedented. This study introduces an effective strategy to achieve photoirradiation‐driven chirality regulation in a bilayered structure film, which consists of a layer of soft helical superstructure incorporated with a light‐driven molecular motor and a layer of room‐temperature phosphorescent (RTP) polymer. The prepared bilayered film exhibits CP‐OURTP with an emission lifetime of 805 ms and a glum value up to 1.38. Remarkably, the glum value of the resulting CP‐OURTP film can be reversibly controlled between 0.6 and 1.38 over 20 cycles by light irradiation, representing the first example of dynamically controlling the glum in CP‐OURTP.
- Subjects
MOLECULAR motor proteins; IRRADIATION; PHOSPHORESCENCE; CHIRALITY
- Publication
Angewandte Chemie, 2024, Vol 136, Issue 12, p1
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202319536