Arylene Diimide Phosphors: Aggregation Modulated Twin Room Temperature Phosphorescence from Pyromellitic Diimides

Garain, Swadhin ; Kuila, Suman ; Garain, Bidhan Chandra ; Kataria, Meenal ; Borah, Aditya ; Pati, Swapan K. ; George, Subi J. (2021) Arylene Diimide Phosphors: Aggregation Modulated Twin Room Temperature Phosphorescence from Pyromellitic Diimides Angewandte Chemie International Edition . ISSN 1433-7851

Full text not available from this repository.

Official URL: http://doi.org/10.1002/anie.202101538

Related URL: http://dx.doi.org/10.1002/anie.202101538

Abstract

Arylene diimide derived ambient organic phosphors are seldom reported despite their potential structural characteristics to facilitate the triplet harvesting. In this context, highly efficient room temperature phosphorescence (RTP) from simple, heavy‐atom substituted pyromellitic diimide derivatives in amorphous matrix and crystalline state is reported here. Multiple intermolecular halogen bonding interactions among these phosphors, such as halogen‐carbonyl and halogen‐π resulted in the modulation of phosphorescence, cyan emission from monomeric state and orange‐red emission from its aggregated state, to yield twin RTP emission. Remarkably, the air‐stable phosphorescence presented here own one of the highest quantum yield (≈48 %) among various organics in orange‐red emissive region.

Item Type:Article
Source:Copyright of this article belongs to John Wiley & Sons, Inc.
Keywords:Aggregation; Dual Phosphorescence; Noncovalent Interactions; Photochemistry; Pyromellitic Diimide.
ID Code:117677
Deposited On:29 Apr 2021 11:27
Last Modified:29 Apr 2021 11:27

Repository Staff Only: item control page