Enhanced and balanced efficiency of white bidirectional organic light-emitting diodes

Jonghee Lee; Hyunsu Cho; Tae-Wook Koh; Changhun Yun; Simone Hofmann; Jae-Hyun Lee; Yong Hyun Kim; Bjoern Luessem; Jeong-Ik Lee; Karl Leo; Malte C. Gather; Seunghyup Yoo

doi:10.1364/OE.21.028040

Enhanced and balanced efficiency of white bidirectional organic light-emitting diodes

Jonghee Lee, Hyunsu Cho, Tae-Wook Koh, Changhun Yun, Simone Hofmann, Jae-Hyun Lee, Yong Hyun Kim, Bjoern Luessem, Jeong-Ik Lee, Karl Leo, Malte C. Gather, Seunghyup Yoo^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We report on the characteristics of enhanced and balanced white-light emission from bi-directional organic light-emitting diodes (BiOLEDs) enabled by the introduction of micro-cavity effects. The insertion of an additional metal layer between the indium tin oxide anode and the hole transporting layer results in similar light output of our BiOLEDs in both top and bottom direction and in reduced distortion of the electroluminescence spectrum. Furthermore, we find that by utilizing MC effects, the overall current efficiency can be improved by 26.2% compared to that of a conventional device. (C) 2013 Optical Society of America

Original language	English
Pages (from-to)	28040-28047
Number of pages	8
Journal	Optics Express
Volume	21
Issue number	23
DOIs	https://doi.org/10.1364/OE.21.028040
Publication status	Published - 18 Nov 2013

Keywords

CAPPING LAYERS
PERFORMANCE

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10.1364/OE.21.028040

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title = "Enhanced and balanced efficiency of white bidirectional organic light-emitting diodes",

abstract = "We report on the characteristics of enhanced and balanced white-light emission from bi-directional organic light-emitting diodes (BiOLEDs) enabled by the introduction of micro-cavity effects. The insertion of an additional metal layer between the indium tin oxide anode and the hole transporting layer results in similar light output of our BiOLEDs in both top and bottom direction and in reduced distortion of the electroluminescence spectrum. Furthermore, we find that by utilizing MC effects, the overall current efficiency can be improved by 26.2% compared to that of a conventional device. (C) 2013 Optical Society of America",

keywords = "CAPPING LAYERS, PERFORMANCE",

author = "Jonghee Lee and Hyunsu Cho and Tae-Wook Koh and Changhun Yun and Simone Hofmann and Jae-Hyun Lee and Kim, {Yong Hyun} and Bjoern Luessem and Jeong-Ik Lee and Karl Leo and Gather, {Malte C.} and Seunghyup Yoo",

year = "2013",

month = nov,

day = "18",

doi = "10.1364/OE.21.028040",

language = "English",

volume = "21",

pages = "28040--28047",

journal = "Optics Express",

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TY - JOUR

T1 - Enhanced and balanced efficiency of white bidirectional organic light-emitting diodes

AU - Lee, Jonghee

AU - Cho, Hyunsu

AU - Koh, Tae-Wook

AU - Yun, Changhun

AU - Hofmann, Simone

AU - Lee, Jae-Hyun

AU - Kim, Yong Hyun

AU - Luessem, Bjoern

AU - Lee, Jeong-Ik

AU - Leo, Karl

AU - Gather, Malte C.

AU - Yoo, Seunghyup

PY - 2013/11/18

Y1 - 2013/11/18

N2 - We report on the characteristics of enhanced and balanced white-light emission from bi-directional organic light-emitting diodes (BiOLEDs) enabled by the introduction of micro-cavity effects. The insertion of an additional metal layer between the indium tin oxide anode and the hole transporting layer results in similar light output of our BiOLEDs in both top and bottom direction and in reduced distortion of the electroluminescence spectrum. Furthermore, we find that by utilizing MC effects, the overall current efficiency can be improved by 26.2% compared to that of a conventional device. (C) 2013 Optical Society of America

AB - We report on the characteristics of enhanced and balanced white-light emission from bi-directional organic light-emitting diodes (BiOLEDs) enabled by the introduction of micro-cavity effects. The insertion of an additional metal layer between the indium tin oxide anode and the hole transporting layer results in similar light output of our BiOLEDs in both top and bottom direction and in reduced distortion of the electroluminescence spectrum. Furthermore, we find that by utilizing MC effects, the overall current efficiency can be improved by 26.2% compared to that of a conventional device. (C) 2013 Optical Society of America

KW - CAPPING LAYERS

KW - PERFORMANCE

U2 - 10.1364/OE.21.028040

DO - 10.1364/OE.21.028040

M3 - Article

SN - 1094-4087

VL - 21

SP - 28040

EP - 28047

JO - Optics Express

JF - Optics Express

IS - 23

ER -

Enhanced and balanced efficiency of white bidirectional organic light-emitting diodes

Abstract

Keywords

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