Activating room-temperature phosphorescence of 1, 8-naphthalimide by doping into aromatic dicarboxylic acids. Issue 22 (25th February 2022)

• Record Type: Journal Article
• Authors: Wang, Xiangming; Wang, Zepeng; Feng, Hua; Lin, Chongyang; Shi, Huifang; An, Zhongfu; Su, Zhong-Min; Liang, Fu-Shun
• Is Part Of: Chemical communications. Volume 58:Issue 22(2022)
• Page Start: 3641
• Page End: 3644
• Publication Date: 2022-02-25
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d2cc00474g
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : The parent 1, 8-naphthalimide, which is otherwise room-temperature phosphorescence inert, was activated by doping into aromatic dicarboxylic acids, leading to efficient and long-lived phosphorescent emission. Abstract : The room-temperature phosphorescence of 1, 8-naphthalimide was activated by doping it into aromatic dicarboxylic acids. The doping system gives a bright yellow afterglow and 1, 8-naphthalimide and isophthalic acid (0.02 mol% doping content) afford a phosphorescent lifetime of 403 ms and a quantum yield of 4.2%. Both energy transfer from the host to the guest and the formation of an intermolecular hydrogen-bonding network are responsible for the observed efficient and long-lived phosphorescence.