Fabrication and performance evaluation of microfluidic organic light emitting diode

Takashi Kasahara; Shigeyuki Matsunami; Tomohiko Edura; Juro Oshima; Chihaya Adachi; Shuichi Shoji; Jun Mizuno

doi:10.1016/j.sna.2012.12.031

Fabrication and performance evaluation of microfluidic organic light emitting diode

Takashi Kasahara, Shigeyuki Matsunami, Tomohiko Edura, Juro Oshima, Chihaya Adachi, Shuichi Shoji, Jun Mizuno

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

40 Citations (Scopus)

Abstract

In this study, we fabricated a microfluidic organic light emitting diode (OLED) and evaluated its performance. The microchip consisted of a 3 x 3 matrix array of OLED pixels in SU-8 microchannels sandwiched by indium tin oxide (ITO) anode and cathode pairs. Liquid organic semiconductors introduced into the microchannels were employed as the light emitters. Electroluminescence was successfully observed at the emitting area of the microchannels. A current density of 0.298 mA/cm² was measured at 70 V. In our prototype microfluidic OLED, the patterning of the liquid emitters was confirmed in the microchannels on a single chip. This result shows that the proposed structure can be applicable for liquid-based display.

Original language	English
Pages (from-to)	219-223
Number of pages	5
Journal	Sensors and Actuators, A: Physical
Volume	195
DOIs	https://doi.org/10.1016/j.sna.2012.12.031
Publication status	Published - 2013 Jun 1

Keywords

Liquid OLED
Liquid organic semiconductor
Microfluidic OLED
SU-8 microchannel

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering

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abstract = "In this study, we fabricated a microfluidic organic light emitting diode (OLED) and evaluated its performance. The microchip consisted of a 3 x 3 matrix array of OLED pixels in SU-8 microchannels sandwiched by indium tin oxide (ITO) anode and cathode pairs. Liquid organic semiconductors introduced into the microchannels were employed as the light emitters. Electroluminescence was successfully observed at the emitting area of the microchannels. A current density of 0.298 mA/cm2 was measured at 70 V. In our prototype microfluidic OLED, the patterning of the liquid emitters was confirmed in the microchannels on a single chip. This result shows that the proposed structure can be applicable for liquid-based display.",

keywords = "Liquid OLED, Liquid organic semiconductor, Microfluidic OLED, SU-8 microchannel",

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AU - Matsunami, Shigeyuki

AU - Edura, Tomohiko

AU - Oshima, Juro

AU - Adachi, Chihaya

AU - Shoji, Shuichi

AU - Mizuno, Jun

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