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

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish
Title of host publication2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2049-2052
Number of pages4
ISBN (Print)9781479989553
DOIs
Publication statusPublished - 2015 Aug 5
Event18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 - Anchorage, United States
Duration: 2015 Jun 212015 Jun 25

Other

Other18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
CountryUnited States
CityAnchorage
Period15/6/2115/6/25

Keywords

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

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Microfluidic white organic light-emitting diode based on striped fine microchannels for greenish blue and yellow liquid emitters'. Together they form a unique fingerprint.

  • 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). [7181359] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TRANSDUCERS.2015.7181359