Light Amplification by Optical Excitation of a Chemical Defect in a Conjugated Polymer

Light Amplification by Optical Excitation of a Chemical Defect in a Conjugated Polymer

A small fraction of narrow‐bandgap benzothiadiazole (BT) ‘defects’ covalently integrated into the main chain of a wide‐bandgap polyfluorene (PF) polymer minimizes self‐absorption effects via efficient energy transfer from absorbing PF segments to emitting BT ‘defects’. A threshold for amplified spon...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Weinheim) 2004-06, Vol.16 (12), p.1001-1004
Hauptverfasser: Vehse, M., Liu, B., Edman, L., Bazan, G. C., Heeger, A J.
Format: Artikel
Sprache:eng
Schlagworte:
Conjugated polymers
Copolymerization
Light-emitting materials
Optical waveguides
Polyfluorenes
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A small fraction of narrow‐bandgap benzothiadiazole (BT) ‘defects’ covalently integrated into the main chain of a wide‐bandgap polyfluorene (PF) polymer minimizes self‐absorption effects via efficient energy transfer from absorbing PF segments to emitting BT ‘defects’. A threshold for amplified spontaneous emission in a glass/polymer/air optical waveguide as low as 15 kW cm–2 is achieved.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200400170