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Organic light-emitting diodes based on a blend of poly[2-(2-ethylhexyloxy)-5-methoxy-1,4-phenylenevinylene] and an electron transporting material.

Ahn, J. H. and Wang, C. and Pearson, C. and Bryce, M. R. and Petty, M. C. (2004) 'Organic light-emitting diodes based on a blend of poly[2-(2-ethylhexyloxy)-5-methoxy-1,4-phenylenevinylene] and an electron transporting material.', Applied physics letters., 85 (7). pp. 1283-1285.

Abstract

Organic light-emitting devices (OLEDs) containing a blend of poly[2-(2-ethylhexyloxy)-5-methoxy-1,4-phenylenevinylene] (MEH-PPV) and an electron transporting material, 2,7-bis[2-(4-tert-butylphenyl)-1,3,4-oxadiazol-5-yl]-9,9-dihexylfluorene have been fabricated. The external quantum efficiencies of the OLEDs containing the electron transport compound were increased significantly over those obtained for devices based only on MEH-PPV. For example, the efficiency for a device incorporating 95% of electron transport compound was two orders of magnitude greater than that for a nonblended device. In all of our investigations, the electroluminescence (orange/yellow emission) originated exclusively from the MEH-PPV material, even for very high concentrations (> 90%) of the electron transport component.

Item Type:Article
Keywords:Improved quantum efficiency, Electroluminescent devices, Single-layer.
Full text:PDF - Published Version (69Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1063/1.1776621
Publisher statement:Copyright (2004) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in (Ahn, J. H. and Wang, C. and Pearson, C. and Bryce, M. R. and Petty, M. C. (2004) Organic light-emitting diodes based on a blend of poly[2-(2-ethylhexyloxy)-5-methoxy-1,4-phenylenevinylene] and an electron transporting material. Applied physics letters., 85 (7). pp. 1283-1285. ISSN 0003-6951) and may be found at http://link.aip.org/link/?apl/85/1283
Record Created:31 Aug 2006
Last Modified:21 Apr 2011 12:54

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