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Proceedings Paper

Red/blue electroluminescence from europium-doped organic light emitting diodes
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Paper Abstract

Red/Blue emitting organic light emitting diodes (OLED) devices have been obtained using a Europium-doped organic emitting layer (NPB:Eu). The Eu-doped OLEDs emit in 2 color ranges: a broad blue (~420-500nm) band due to NPB emission and a narrow red peak at 620nm due to Eu emission. The red/blue devices achieve a brightness ~13x more intense than a similarly structured green (Alq3) emitting OLED. These NPB:Eu emitting structures also reach a maximum efficiency of 0.2 cd/A at brightnesses above 100 cd/m2.

Paper Details

Date Published: 23 February 2006
PDF: 5 pages
Proc. SPIE 6117, Organic Photonic Materials and Devices VIII, 61170O (23 February 2006); doi: 10.1117/12.643894
Show Author Affiliations
Joshua A. Hagen, Univ. of Cincinnati (United States)
Wayne X. Li, Univ. of Cincinnati (United States)
James G. Grote, U.S. Air Force Research Lab. (United States)
Andrew J. Steckl, Univ. of Cincinnati (United States)


Published in SPIE Proceedings Vol. 6117:
Organic Photonic Materials and Devices VIII
James G. Grote; Francois Kajzar; Nakjoong Kim, Editor(s)

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