Angular Dependence of the Emission from a Conjugated Polymer Light‐Emitting Diode: Implications for efficiency calculations

Neil C. Greenham, Richard H. Friend, Donal D.C. Bradley

Research output: Contribution to journalArticlepeer-review

596 Scopus citations

Abstract

The ability to compare electroluminescence efficiencies is important now that light‐emitting diodes (LEDs) have been constructed using many different polymers and different device structures. Various ways of defining and measuring the efficiency of polymer LEDs are discussed, revealing the need to understand the nature and orgin of the angular dependence of the emission. A model for the angular distribution of the emitted light is proposed and measurements of the ligh output of a polymer LED described whose results are consitent with the model. Copyright © 1994 Verlag GmbH & Co. KGaA, Weinheim
Original languageEnglish (US)
JournalAdvanced Materials
Volume6
Issue number6
DOIs
StatePublished - Jan 1 1994
Externally publishedYes

Fingerprint

Dive into the research topics of 'Angular Dependence of the Emission from a Conjugated Polymer Light‐Emitting Diode: Implications for efficiency calculations'. Together they form a unique fingerprint.

Cite this