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

doi:10.1002/adma.19940060612

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 journal › Article › peer-review

630 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 language	English (US)
Journal	Advanced Materials
Volume	6
Issue number	6
DOIs	https://doi.org/10.1002/adma.19940060612
State	Published - Jan 1 1994
Externally published	Yes

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

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 {\textcopyright} 1994 Verlag GmbH & Co. KGaA, Weinheim",

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AU - Greenham, Neil C.

AU - Friend, Richard H.

AU - Bradley, Donal D.C.

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N2 - 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

AB - 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

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JO - Advanced Materials

JF - Advanced Materials

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ER -

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

Abstract

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