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 (Electronic)9781479989553
    DOIs
    Publication statusPublished - Aug 5 2015
    Event18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 - Anchorage, United States
    Duration: Jun 21 2015Jun 25 2015

    Publication series

    Name2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015

    Other

    Other18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
    Country/TerritoryUnited States
    CityAnchorage
    Period6/21/156/25/15

    All Science Journal Classification (ASJC) codes

    • 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