Strongly Modified Angular Dependence of Emission from OLEDs

Shuyu Zhang; Graham A. Turnbull; Ifor D. W. Samuel

doi:10.1117/12.931576

Strongly Modified Angular Dependence of Emission from OLEDs

Shuyu Zhang, Graham A. Turnbull, Ifor D. W. Samuel

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The emission pattern of organic light-emitting diodes (OLEDs) is usually close to Lambertian. This paper explores the factors controlling the angular dependence of the emission from OLEDs. In particular it considers the question of how far from Lambertian can the emission of an OLED be? We have examined how wavelength-scale microstructure can modify the pattern of light emission from OLEDs. We demonstrate OLEDs in which emission is strongly directed towards, or away from, the forward direction. We consider the relative importance of scattering of waveguide modes, surface plasmons and microcavity effects in the strongly modified emission patterns which we observe.

Original language	English
Title of host publication	ORGANIC LIGHT EMITTING MATERIALS AND DEVICES XVI
Editors	F So, C Adachi
Place of Publication	BELLINGHAM
Publisher	SPIE
Pages	-
Number of pages	4
ISBN (Print)	978-0-8194-9193-0
DOIs	https://doi.org/10.1117/12.931576
Publication status	Published - 2012
Event	Conference on Organic Light Emitting Materials and Devices XVI - San Diego Duration: 12 Aug 2012 → 15 Aug 2012

Conference

Conference	Conference on Organic Light Emitting Materials and Devices XVI
City	San Diego
Period	12/08/12 → 15/08/12

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10.1117/12.931576

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@inproceedings{72995c8221db4c52b8171c16f289c257,

title = "Strongly Modified Angular Dependence of Emission from OLEDs",

abstract = "The emission pattern of organic light-emitting diodes (OLEDs) is usually close to Lambertian. This paper explores the factors controlling the angular dependence of the emission from OLEDs. In particular it considers the question of how far from Lambertian can the emission of an OLED be? We have examined how wavelength-scale microstructure can modify the pattern of light emission from OLEDs. We demonstrate OLEDs in which emission is strongly directed towards, or away from, the forward direction. We consider the relative importance of scattering of waveguide modes, surface plasmons and microcavity effects in the strongly modified emission patterns which we observe.",

author = "Shuyu Zhang and Turnbull, {Graham A.} and Samuel, {Ifor D. W.}",

year = "2012",

doi = "10.1117/12.931576",

language = "English",

isbn = "978-0-8194-9193-0",

pages = "--",

editor = "F So and C Adachi",

booktitle = "ORGANIC LIGHT EMITTING MATERIALS AND DEVICES XVI",

publisher = "SPIE",

address = "United States",

note = "Conference on Organic Light Emitting Materials and Devices XVI ; Conference date: 12-08-2012 Through 15-08-2012",

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TY - GEN

T1 - Strongly Modified Angular Dependence of Emission from OLEDs

AU - Zhang, Shuyu

AU - Turnbull, Graham A.

AU - Samuel, Ifor D. W.

PY - 2012

Y1 - 2012

N2 - The emission pattern of organic light-emitting diodes (OLEDs) is usually close to Lambertian. This paper explores the factors controlling the angular dependence of the emission from OLEDs. In particular it considers the question of how far from Lambertian can the emission of an OLED be? We have examined how wavelength-scale microstructure can modify the pattern of light emission from OLEDs. We demonstrate OLEDs in which emission is strongly directed towards, or away from, the forward direction. We consider the relative importance of scattering of waveguide modes, surface plasmons and microcavity effects in the strongly modified emission patterns which we observe.

AB - The emission pattern of organic light-emitting diodes (OLEDs) is usually close to Lambertian. This paper explores the factors controlling the angular dependence of the emission from OLEDs. In particular it considers the question of how far from Lambertian can the emission of an OLED be? We have examined how wavelength-scale microstructure can modify the pattern of light emission from OLEDs. We demonstrate OLEDs in which emission is strongly directed towards, or away from, the forward direction. We consider the relative importance of scattering of waveguide modes, surface plasmons and microcavity effects in the strongly modified emission patterns which we observe.

U2 - 10.1117/12.931576

DO - 10.1117/12.931576

M3 - Conference contribution

SN - 978-0-8194-9193-0

SP - -

BT - ORGANIC LIGHT EMITTING MATERIALS AND DEVICES XVI

A2 - So, F

A2 - Adachi, C

PB - SPIE

CY - BELLINGHAM

T2 - Conference on Organic Light Emitting Materials and Devices XVI

Y2 - 12 August 2012 through 15 August 2012

ER -

Strongly Modified Angular Dependence of Emission from OLEDs

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