Microfluidic white organic light-emitting diode based on striped fine microchannels for greenish blue and yellow liquid emitters

Naofumi Kobayashi; Takashi Kasahara; Tomohiko Edura; Juro Oshima; Ryoichi Ishimatsu; Miho Tsuwaki; Toshihiko Imato; Shuichi Shoji; Jun Mizuno

doi:10.1109/TRANSDUCERS.2015.7181359

Microfluidic white organic light-emitting diode based on striped fine microchannels for greenish blue and yellow liquid emitters

Naofumi Kobayashi^*, Takashi Kasahara, Tomohiko Edura, Juro Oshima, Ryoichi Ishimatsu, Miho Tsuwaki, Toshihiko Imato, Shuichi Shoji, Jun Mizuno

^*Corresponding author for this work

Research Organization for Nano & Life Innovation

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

Abstract

We demonstrated a microfluidic white organic light-emitting diode (microfluidic WOLED) with integrated patterns of greenish-blue and yellow. Sub-100-μm-wide microchannels were alternately filled with greenish-blue and yellow liquid emitters to generate the patterns. 1-Pyrenebutyric acid 2-ethylhexyl ester (PLQ) was used as the greenish-blue emitter, while 2,8-di-tert-butyl-5,11-bis(4-tert-butylphenyl)-6,12-diphenyltetracene (TBRb)-doped PLQ was applied as the yellow emitter. The microfluidic WOLED exhibited white electroluminescence (EL) emission under 100V, which covers the broad emission band ranging from 420 nm to 750 nm. The EL emission occurred from the simultaneous greenish-blue and yellow emissions. The white emission with Commission Internationale de l'Eclairage (CIE) color coordinates of (0.40, 0.42) was obtained, which corresponds to warm-white light. Our microfluidic WOLED technology opens up new possibilities for not only sub-pixels of microdisplays but also lightings.

Original language	English
Title of host publication	2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2049-2052
Number of pages	4
ISBN (Print)	9781479989553
DOIs	https://doi.org/10.1109/TRANSDUCERS.2015.7181359
Publication status	Published - 2015 Aug 5
Event	18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 - Anchorage, United States Duration: 2015 Jun 21 → 2015 Jun 25

Other

Other	18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
Country/Territory	United States
City	Anchorage
Period	15/6/21 → 15/6/25

Keywords

Electro-microfluidic
Integrated microchannels
Liquid organic semiconductor
Microfluidic OLED
Striped layer
WOLED

ASJC Scopus subject areas

Instrumentation
Electrical and Electronic Engineering

Access to Document

10.1109/TRANSDUCERS.2015.7181359

Cite this

Kobayashi, N., Kasahara, T., Edura, T., Oshima, J., Ishimatsu, R., Tsuwaki, M., Imato, T., Shoji, S., & Mizuno, J. (2015). Microfluidic white organic light-emitting diode based on striped fine microchannels for greenish blue and yellow liquid emitters. In 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 (pp. 2049-2052). Article 7181359 Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TRANSDUCERS.2015.7181359

Microfluidic white organic light-emitting diode based on striped fine microchannels for greenish blue and yellow liquid emitters. / Kobayashi, Naofumi; Kasahara, Takashi; Edura, Tomohiko et al.
2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 2049-2052 7181359.

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

Kobayashi, N, Kasahara, T, Edura, T, Oshima, J, Ishimatsu, R, Tsuwaki, M, Imato, T, Shoji, S & Mizuno, J 2015, Microfluidic white organic light-emitting diode based on striped fine microchannels for greenish blue and yellow liquid emitters. in 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015., 7181359, Institute of Electrical and Electronics Engineers Inc., pp. 2049-2052, 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015, Anchorage, United States, 15/6/21. https://doi.org/10.1109/TRANSDUCERS.2015.7181359

Kobayashi N, Kasahara T, Edura T, Oshima J, Ishimatsu R, Tsuwaki M et al. Microfluidic white organic light-emitting diode based on striped fine microchannels for greenish blue and yellow liquid emitters. In 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015. Institute of Electrical and Electronics Engineers Inc. 2015. p. 2049-2052. 7181359 doi: 10.1109/TRANSDUCERS.2015.7181359

Kobayashi, Naofumi ; Kasahara, Takashi ; Edura, Tomohiko et al. / Microfluidic white organic light-emitting diode based on striped fine microchannels for greenish blue and yellow liquid emitters. 2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 2049-2052

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abstract = "We demonstrated a microfluidic white organic light-emitting diode (microfluidic WOLED) with integrated patterns of greenish-blue and yellow. Sub-100-μm-wide microchannels were alternately filled with greenish-blue and yellow liquid emitters to generate the patterns. 1-Pyrenebutyric acid 2-ethylhexyl ester (PLQ) was used as the greenish-blue emitter, while 2,8-di-tert-butyl-5,11-bis(4-tert-butylphenyl)-6,12-diphenyltetracene (TBRb)-doped PLQ was applied as the yellow emitter. The microfluidic WOLED exhibited white electroluminescence (EL) emission under 100V, which covers the broad emission band ranging from 420 nm to 750 nm. The EL emission occurred from the simultaneous greenish-blue and yellow emissions. The white emission with Commission Internationale de l'Eclairage (CIE) color coordinates of (0.40, 0.42) was obtained, which corresponds to warm-white light. Our microfluidic WOLED technology opens up new possibilities for not only sub-pixels of microdisplays but also lightings.",

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author = "Naofumi Kobayashi and Takashi Kasahara and Tomohiko Edura and Juro Oshima and Ryoichi Ishimatsu and Miho Tsuwaki and Toshihiko Imato and Shuichi Shoji and Jun Mizuno",

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T1 - Microfluidic white organic light-emitting diode based on striped fine microchannels for greenish blue and yellow liquid emitters

AU - Kobayashi, Naofumi

AU - Kasahara, Takashi

AU - Edura, Tomohiko

AU - Oshima, Juro

AU - Ishimatsu, Ryoichi

AU - Tsuwaki, Miho

AU - Imato, Toshihiko

AU - Shoji, Shuichi

AU - Mizuno, Jun

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N2 - We demonstrated a microfluidic white organic light-emitting diode (microfluidic WOLED) with integrated patterns of greenish-blue and yellow. Sub-100-μm-wide microchannels were alternately filled with greenish-blue and yellow liquid emitters to generate the patterns. 1-Pyrenebutyric acid 2-ethylhexyl ester (PLQ) was used as the greenish-blue emitter, while 2,8-di-tert-butyl-5,11-bis(4-tert-butylphenyl)-6,12-diphenyltetracene (TBRb)-doped PLQ was applied as the yellow emitter. The microfluidic WOLED exhibited white electroluminescence (EL) emission under 100V, which covers the broad emission band ranging from 420 nm to 750 nm. The EL emission occurred from the simultaneous greenish-blue and yellow emissions. The white emission with Commission Internationale de l'Eclairage (CIE) color coordinates of (0.40, 0.42) was obtained, which corresponds to warm-white light. Our microfluidic WOLED technology opens up new possibilities for not only sub-pixels of microdisplays but also lightings.

AB - We demonstrated a microfluidic white organic light-emitting diode (microfluidic WOLED) with integrated patterns of greenish-blue and yellow. Sub-100-μm-wide microchannels were alternately filled with greenish-blue and yellow liquid emitters to generate the patterns. 1-Pyrenebutyric acid 2-ethylhexyl ester (PLQ) was used as the greenish-blue emitter, while 2,8-di-tert-butyl-5,11-bis(4-tert-butylphenyl)-6,12-diphenyltetracene (TBRb)-doped PLQ was applied as the yellow emitter. The microfluidic WOLED exhibited white electroluminescence (EL) emission under 100V, which covers the broad emission band ranging from 420 nm to 750 nm. The EL emission occurred from the simultaneous greenish-blue and yellow emissions. The white emission with Commission Internationale de l'Eclairage (CIE) color coordinates of (0.40, 0.42) was obtained, which corresponds to warm-white light. Our microfluidic WOLED technology opens up new possibilities for not only sub-pixels of microdisplays but also lightings.

KW - Electro-microfluidic

KW - Integrated microchannels

KW - Liquid organic semiconductor

KW - Microfluidic OLED

KW - Striped layer

KW - WOLED

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Y2 - 21 June 2015 through 25 June 2015

ER -

Microfluidic white organic light-emitting diode based on striped fine microchannels for greenish blue and yellow liquid emitters

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