Enhancing Circularly Polarized Phosphorescence via Integrated Top‐Down and Bottom‐Up Approach

Gyurim Park; Dong Yeun Jeong; Seung Yeon Yu; Jong Jin Park; Jong H. Kim; Hoichang Yang; Youngmin You

doi:10.1002/ange.202309762

journal article Sep 04, 2023

Enhancing Circularly Polarized Phosphorescence via Integrated Top‐Down and Bottom‐Up Approach

Gyurim Park Dong Yeun Jeong Seung Yeon Yu Jong Jin Park Jong H. Kim

Hoichang Yang Youngmin You

Angewandte Chemie Vol. 135 No. 41 · Wiley

View at Publisher Save 10.1002/ange.202309762

Abstract

AbstractIn the dynamic domain of chiroptical technologies, it is imperative to engineer emitters endowed with circularly polarized luminescence (CPL) properties. This research demonstrates an advancement by employing a combined top‐down and bottom‐up strategy for the simultaneous amplification of photoluminescence quantum yield (Φ) and the luminescence dissymmetry factor (glum). Square‐planar Pt(II) complexes form helical assemblies, driven by torsional strain induced by bis(nonyl) chains. Integration of chiral anions leads these assemblies to prefer distinct helical sense. This arrangement activates the metal‐metal‐to‐ligand charge transfer (MMLCT) transition that is CPL‐active, with Φ and |glum| observing an upswing contingent on the charge number and aryl substituents in chiral anions. Utilizing the soft‐lithographic micromolding in capillaries technique, we could fabricate exquisitely‐ordered, one‐dimensional co‐assemblies to achieve the metrics to Φ of 0.32 and |glum| of 0.13. Finally, our spectroscopic research elucidates the underlying mechanism for the dual amplification, making a significant stride in the advancement of CPL‐active emitters.

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Published: Sep 04, 2023
Vol/Issue: 135(41)
License: View

Authors

G

Gyurim Park

Department of Chemical and Biomolecular Engineering Yonsei University Seoul 03722 Republic of Korea

D

Dong Yeun Jeong

Division of Chemical Engineering and Materials Science Ewha Womans University Seoul 03760 Republic of Korea

S

Seung Yeon Yu

Division of Chemical Engineering and Materials Science Ewha Womans University Seoul 03760 Republic of Korea

J

Jong Jin Park

Department of Molecular Science and Technology Ajou University Suwon 16499 Republic of Korea

J

Jong H. Kim

Department of Molecular Science and Technology Ajou University Suwon 16499 Republic of Korea

H

Hoichang Yang

Department of Chemical Engineering Inha University Incheon 22212 Republic of Korea

Y

Youngmin You

Department of Chemical and Biomolecular Engineering Yonsei University Seoul 03722 Republic of Korea

Funding

National Research Foundation of Korea Award: RS-2023-00208856

Cite This Article

Gyurim Park, Dong Yeun Jeong, Seung Yeon Yu, et al. (2023). Enhancing Circularly Polarized Phosphorescence via Integrated Top‐Down and Bottom‐Up Approach. Angewandte Chemie, 135(41). https://doi.org/10.1002/ange.202309762

Enhancing Circularly Polarized Phosphorescence via Integrated Top‐Down and Bottom‐Up Approach

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