Low-haze light extraction from organic light-emitting diode lighting with auxiliary electrode by selective microlens arrays

Ju Hyun Hwang; Tae Hyun Park; Hyun Jun Lee; Kyung Bok Choi; Young Wook Park; Byeong Kwon Ju

doi:10.1364/OL.38.004182

Low-haze light extraction from organic light-emitting diode lighting with auxiliary electrode by selective microlens arrays

Ju Hyun Hwang, Tae Hyun Park, Hyun Jun Lee, Kyung Bok Choi, Young Wook Park, Byeong Kwon Ju

School of Electrical Engineering

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

10 Citations (Scopus)

Abstract

Improved out-coupling efficiency and low haze of organic light-emitting diode (OLED) lighting with an auxiliary electrode are demonstrated by selective microlens arrays (SMLAs). The microlens arrays, aligned with the auxiliary electrode, were selectively fabricated, since the fully packed microlens arrays lead to OLED lighting with high haze. The external quantum efficiency and power efficiency of the devices with the SMLAs increased by 32% when compared with the devices without these arrays. Using the SMLAs, dark grid lines in the emission region became brighter, with a low haze, and the spectra of the emitted light had no shift.

Original language	English
Pages (from-to)	4182-4185
Number of pages	4
Journal	Optics Letters
Volume	38
Issue number	20
DOIs	https://doi.org/10.1364/OL.38.004182
Publication status	Published - 2013 Oct 15

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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title = "Low-haze light extraction from organic light-emitting diode lighting with auxiliary electrode by selective microlens arrays",

abstract = "Improved out-coupling efficiency and low haze of organic light-emitting diode (OLED) lighting with an auxiliary electrode are demonstrated by selective microlens arrays (SMLAs). The microlens arrays, aligned with the auxiliary electrode, were selectively fabricated, since the fully packed microlens arrays lead to OLED lighting with high haze. The external quantum efficiency and power efficiency of the devices with the SMLAs increased by 32% when compared with the devices without these arrays. Using the SMLAs, dark grid lines in the emission region became brighter, with a low haze, and the spectra of the emitted light had no shift.",

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AU - Hwang, Ju Hyun

AU - Park, Tae Hyun

AU - Lee, Hyun Jun

AU - Choi, Kyung Bok

AU - Park, Young Wook

AU - Ju, Byeong Kwon

PY - 2013/10/15

Y1 - 2013/10/15

N2 - Improved out-coupling efficiency and low haze of organic light-emitting diode (OLED) lighting with an auxiliary electrode are demonstrated by selective microlens arrays (SMLAs). The microlens arrays, aligned with the auxiliary electrode, were selectively fabricated, since the fully packed microlens arrays lead to OLED lighting with high haze. The external quantum efficiency and power efficiency of the devices with the SMLAs increased by 32% when compared with the devices without these arrays. Using the SMLAs, dark grid lines in the emission region became brighter, with a low haze, and the spectra of the emitted light had no shift.

AB - Improved out-coupling efficiency and low haze of organic light-emitting diode (OLED) lighting with an auxiliary electrode are demonstrated by selective microlens arrays (SMLAs). The microlens arrays, aligned with the auxiliary electrode, were selectively fabricated, since the fully packed microlens arrays lead to OLED lighting with high haze. The external quantum efficiency and power efficiency of the devices with the SMLAs increased by 32% when compared with the devices without these arrays. Using the SMLAs, dark grid lines in the emission region became brighter, with a low haze, and the spectra of the emitted light had no shift.

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JO - Optics Letters

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Low-haze light extraction from organic light-emitting diode lighting with auxiliary electrode by selective microlens arrays

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