Journal
APPLIED PHYSICS LETTERS
Volume 78, Issue 24, Pages 3905-3907Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1379594
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Due to their outstanding properties, e.g., good contrast, wide viewing angle, low power consumption, and self-emission organic light-emitting (OLE) displays on the basis of conjugated polymers are on the verge of commercialization. Two major disadvantages of the current processing technique for the polymers-spin coating-are the material waste and the difficulties involved in patterning multichrome or even full-color displays. Therefore, we investigated the screen-printing technique for the production of OLE displays. In this letter, we present performance data and images of screen-printed OLE diodes. They are already comparable to spin-coated ones. We observed luminance of 10 000 cd/m(2) at 8 V and peak efficiencies exceeding 10 cd/A for green diodes. These data indicate that printed organic displays have the potential to replace classical spin-coated devices. (C) 2001 American Institute of Physics.
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