Premium
Paintable Room‐Temperature Phosphorescent Liquid Formulations of Alkylated Bromonaphthalimide
Author(s) -
Manthanath Ananthakrishnan,
Wakchaure Vivek Chandrakant,
Ranjeesh Kayaramkodath Chandran,
Das Tamal,
Vanka Kumar,
Nakanishi Takashi,
Babu Sukumaran Santhosh
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201811834
Subject(s) - phosphorescence , phosphor , intersystem crossing , context (archaeology) , solvent , quantum yield , photochemistry , materials science , alkyl , doping , chemistry , organic chemistry , optoelectronics , fluorescence , singlet state , excited state , optics , physics , paleontology , nuclear physics , biology
Organic phosphors have been widely explored with an understanding that crystalline molecular ordering is a requisite for enhanced intersystem crossing. In this context, we explored the room‐temperature phosphorescence features of a solvent‐free organic liquid phosphor in air. While alkyl chain substitution varied the physical states of the bromonaphthalimides, the phosphorescence remained unaltered for the solvent‐free liquid in air. As the first report, a solvent‐free liquid of a long swallow‐tailed bromonaphthalimide exhibits room‐temperature phosphorescence in air. Doping of the phosphor with carbonyl guests resulted in enhanced phosphorescence, and hence a large‐area paintable phosphorescent liquid composite with improved lifetime and quantum yield was developed.