Dual-color polymer light-emitting pixels processed by hybrid inkjet printing
作者:
Shun-Chi Chang,
Jayesh Bharathan,
Yang Yang,
Roger Helgeson,
Fred Wudl,
Michael B. Ramey,
John R. Reynolds,
期刊:
Applied Physics Letters
(AIP Available online 1998)
卷期:
Volume 73,
issue 18
页码: 2561-2563
ISSN:0003-6951
年代: 1998
DOI:10.1063/1.122533
出版商: AIP
数据来源: AIP
摘要:
A hybrid inkjet printing (HIJP) technology, which combines a pin-hole free polymer buffer layer and an inkjet printed polymer layer, allows the patterning of high quality polymer light-emitting devices. In this letter, we present a successful demonstration of controllable patterning of dual-color polymer light-emitting pixels using this HIJP technique. In this demonstration, the polymer buffer layer is a wide band gap, blue emitting semiconducting polymer prepared by the spin-casting technique. The inkjet printed layer is a red-orange semiconducting polymer which was printed onto the buffer layer. When a proper solvent was selected, the printed polymer diffused into the buffer layer and efficient energy transfer took place 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. ©1998 American Institute of Physics.
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