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Proceedings Paper

Dual-color polymer light-emitting pixels processed by hybrid inkjet printing
Author(s): Shun-Chi Chang; Jayesh Bharathan; Roger Helgeson; Fred Wudl; Yang Yang; Michael B. Ramey; John R. Reynolds
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Paper Abstract

We present a successful demonstration of controllable patterning of dual-color polymer light-emitting pixels using a hybrid inkjet printing technique. In this demonstration, the polymer buffer layer is a wide bandgap, blue emitting semiconducting polymer (PPP-NRt3+), prepared by the spin-casting technique. The inkjet printed layer is a red-orange semiconductor polymer, (MPS-PPV) which was printed onto the buffer layer.When a proper solvent was selected, MPS-PPV diffused into the buffer layer and efficient energy transfer took place from the PPP-NEt3+ to the MPS-PPV generating a red-orange photoluminescence and electroluminescence from the inkjet printed sites. Based on this principle, blue and orange-red dual-color polymer light-emitting pixels were fabricated on the same substrate. The use of this concept represents an entirely new technology for fabricating polymer multicolor displays with high-resolution, lateral patterning capability.

Paper Details

Date Published: 16 December 1998
PDF: 6 pages
Proc. SPIE 3476, Organic Light-Emitting Materials and Devices II, (16 December 1998); doi: 10.1117/12.332614
Show Author Affiliations
Shun-Chi Chang, Univ. of California/Los Angeles (United States)
Jayesh Bharathan, Univ. of California/Los Angeles (United States)
Roger Helgeson, Univ. of California/Los Angeles (United States)
Fred Wudl, Univ. of California/Los Angeles (United States)
Yang Yang, Univ. of California/Los Angeles (United States)
Michael B. Ramey, Univ. of Florida (United States)
John R. Reynolds, Univ. of Florida (United States)


Published in SPIE Proceedings Vol. 3476:
Organic Light-Emitting Materials and Devices II
Zakya H. Kafafi, Editor(s)

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