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Proceedings Paper

High-resolution polymer LEDs fabricated by drop-on-demand inkjet printing and reactive ion etching
Author(s): Rajneek K. Khillan; Yi Su; Kody Varahramyan
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Paper Abstract

The inkjet printed micro-rings is formed by pinned contact line which pulls the ink solution outwards to compensate solvent evaporation. This phenomena is called “coffee drop effect,” which causes uniformity problem in the inkjet printing. Our attempt is to exploit this effect for fabrication of high resolution polymer LEDs by increasing the number of pixels per unit length. Here we present fabrication of high resolution (> 200 pixels per inch) polymer LEDs using inkjet printing and reactive ion etching. We also show possible way of further increasing the resolution of polymer LEDs by modifying the inkjet printing dispensing parameters.

Paper Details

Date Published: 7 March 2005
PDF: 7 pages
Proc. SPIE 5739, Light-Emitting Diodes: Research, Manufacturing, and Applications IX, (7 March 2005); doi: 10.1117/12.590675
Show Author Affiliations
Rajneek K. Khillan, Louisiana Tech Univ. (United States)
Yi Su, Louisiana Tech Univ. (United States)
Kody Varahramyan, Louisiana Tech Univ. (United States)


Published in SPIE Proceedings Vol. 5739:
Light-Emitting Diodes: Research, Manufacturing, and Applications IX
Steve A. Stockman; H. Walter Yao; E. Fred Schubert, Editor(s)

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