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Proceedings Paper

Synthesis and design of organic light-emitting devices containing lanthanide cored complexes
Author(s): Gregory David Phelan; Brenden Carlson; Rhys Lawson; Daniel Rowe; Kolby Allen; Larry Dalton; Xuezhong Jiang; Joo Hyun Kim; Alex K.-Y. Jen
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Paper Abstract

There is a considerable interest in the use of metal centered materials as a light source in the growing field of organic light emitting devices (OLED's). In these devices, a polymeric host matrix containing either a carbazole type polymer or polyfluorene derivatives is used to help facilitate energy transfer to the luminophore. We have shown that by using a gadolinium complex that consist of three equivalents of a chelated dibenzoylmethane b-diketone ligand and one equivalent of a phenanthroline type ligand as a component in the host matrix, the performance of a double layer type OLED is improved. We have studied OLED systems that contain tris chelated europium compounds that contain three equivalents of partially fluorinated β-diketone type ligands and an equivalent of a phenanthroline type ligand. In these devices, the external efficiency has shown a 30-fold increase. We have also shown there is an increase for Osmium based OLED's that use the gadolinium complex as part of the polymer matrix. In these devices, the maximum quantum efficiency increased from 2.1% to a value of 3.8%.

Paper Details

Date Published: 16 February 2004
PDF: 11 pages
Proc. SPIE 5214, Organic Light-Emitting Materials and Devices VII, (16 February 2004); doi: 10.1117/12.506518
Show Author Affiliations
Gregory David Phelan, Univ. of Washington (United States)
Seattle Pacific Univ. (United States)
Brenden Carlson, Univ. of Washington (United States)
Rhys Lawson, Univ. of Washington (United States)
Daniel Rowe, Seattle Pacific Univ. (United States)
Kolby Allen, Seattle Pacific Univ. (United States)
Larry Dalton, Univ. of Washington (United States)
Xuezhong Jiang, Univ. of Washington (United States)
Joo Hyun Kim, Univ. of Washington (United States)
Alex K.-Y. Jen, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 5214:
Organic Light-Emitting Materials and Devices VII
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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