Aromatic Phosphonates A Novel Group of Emitters Showing Blue Ultralong Room Temperature Phosphorescence

Aromatic Phosphonates : A Novel Group of Emitters Showing Blue Ultralong Room Temperature Phosphorescence

© 2020 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 32(2020), 19 vom: 01. Mai, Seite e2000880
1. Verfasser: Thomas, Heidi (VerfasserIn)
Weitere Verfasser: Pastoetter, Dominik L, Gmelch, Max, Achenbach, Tim, Schlögl, Annika, Louis, Marine, Feng, Xinliang, Reineke, Sebastian
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article UV excitation aromatic phosphonates biluminescence organic programmable tags ultralong room temperature phosphorescence
Beschreibung
Zusammenfassung:© 2020 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
In recent years, there has been a growing interest in purely organic materials showing ultralong room-temperature phosphorescence with lifetimes in the range of seconds. Still, the longest known phosphorescence lifetimes are only achieved with crystalline systems so far. Here, a rational design of a completely new family of halogen-free organic luminescent derivatives in amorphous matrices, displaying both conventional fluorescence and phosphorescence is reported. Hydrogen bonding between the newly developed emitters and an ethylene-vinyl alcohol copolymer (Exceval) matrix, which efficiently suppresses vibrational dissipation, enables bright long-lived phosphorescence with lifetimes up to 2.6 s at around 480 nm. The importance of the chosen matrix is shown as well as the implementation in an organic programmable luminescent tag
Beschreibung:Date Revised 30.09.2020
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202000880