High-resolution polymer LEDs fabricated by drop-on-demand inkjet printing and reactive ion etching

Rajneek K. Khillan; Yi Su; Kody Varahramyan

doi:10.1117/12.590675

7 March 2005 High-resolution polymer LEDs fabricated by drop-on-demand inkjet printing and reactive ion etching

Rajneek K. Khillan, Yi Su, Kody Varahramyan

Proceedings Volume 5739, Light-Emitting Diodes: Research, Manufacturing, and Applications IX; (2005) https://doi.org/10.1117/12.590675
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

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.

Citation Download Citation

Rajneek K. Khillan, Yi Su, and Kody Varahramyan "High-resolution polymer LEDs fabricated by drop-on-demand inkjet printing and reactive ion etching", Proc. SPIE 5739, Light-Emitting Diodes: Research, Manufacturing, and Applications IX, (7 March 2005); https://doi.org/10.1117/12.590675

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