Inside Front Cover: Phenyl‐triggered photophysical switching between normal fluorescence and delayed fluorescence in phthalonitrile‐based luminophores. Issue 1 (12th March 2021)

• Record Type: Journal Article
• Authors: Park, In Seob; Min, Hyukgi; Yasuda, Takuma
• Is Part Of: Aggregate. Volume 2:Issue 1(2021)
• Page Start: NA
• Page End: NA
• Publication Date: 2021-03-12
• Subjects: Aggregation (Chemistry) -- Periodicals; Aggregation (Chemistry); Periodicals; 539.6
• DOI: 10.1002/agt2.43
• Languages: English
• ISSNs: 2692-4560

Abstract

Abstract : In article number 2021, 2, 145–150, a strategy for switching luminescent properties between normal fluorescence and thermally activated delayed fluorescence (TADF) is disclosed. The introduction of additional phenyl groups enables the luminophore to turn on the TADF properties via a subtle geometric modulation. By virtue of the TADF feature, organic light‐emitting diodes (OLEDs) incorporating the phenyl‐introduced luminophore achieves a maximum external electroluminescence quantum efficiency as high as 28.0%, which is five times higher than that of the OLEDs based on non‐phenyl luminophore. (DOI: 10.1002/agt2.14 )