Journal
SENSORS AND ACTUATORS A-PHYSICAL
Volume 195, Issue -, Pages 219-223Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.sna.2012.12.031
Keywords
Microfluidic OLED; Liquid OLED; Liquid organic semiconductor; SU-8 microchannel
Funding
- Japan Ministry of Education, Culture, Sports Science Technology [23226010]
- Japan Society for the Promotion of Science (JSPS)
- Council for Science and Technology Policy (CSTP)
- Grants-in-Aid for Scientific Research [23226010] Funding Source: KAKEN
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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/cm(2) was measured at 70V. 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. (C) 2013 Elsevier B.V. All rights reserved.
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