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.; Wang, C.; Pearson, C.; Bryce, M.R.; Petty, M.C.

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. (C) 2004 American Institute of Physics.

Citation

Ahn, J., Wang, C., Pearson, C., Bryce, M., & Petty, M. (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), 1283-1285

• Journal Article Type: Article
• Publication Date: 2004-08
• Journal: Applied Physics Letters
• Print ISSN: 0003-6951
• Publisher: American Institute of Physics
• Peer Reviewed: Peer Reviewed
• Volume: 85
• Issue: 7
• Pages: 1283-1285