Title: Near infrared electroluminescence from neodymium complex-doped polymer light emitting diodes
Authors: O'Riordan, A ×
O'Connor, E
Moynihan, S
Nockemann, Peter
Fias, P
Van Deun, Rik
Cupertino, D
Mackie, P
Redmond, G #
Issue Date: Jan-2006
Publisher: Elsevier science sa
Series Title: Thin Solid Films vol:497 issue:1-2 pages:299-303
Abstract: Organic light emitting diode devices employing organometallic Nd(9-hydroxyphenalen-1-one)(3) complexes as near infrared emissive dopants dispersed within poly(N-vinylcarbazole) (PVK) host matrices have been fabricated by spin-casting layers of the doped polymer onto glass/indium tin oxide (ITO)/3,4-polyethylene-dioxythiophene-polystyrene sulfonate (PEDOT) substrates. Room temperature electroluminescence, centered at similar to 1065 nm. was observed from devices top contacted by evaporated aluminum or calcium metal cathodes and was assigned to transitions between the F-4(3/2) -> I-4(11/2) levels of the Nd3+ ions. In particular, a near infrared irradiance of 8.5 nW/mm(2) and an external quantum efficiency of 0.007% was achieved using glass/ITO/PEDOT/PVK:Nd(9-hydroxyphenalen-1-one)(3)/Ca/Al devices. (c) 2005 Elsevier B.V. All rights reserved.
ISSN: 0040-6090
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
× corresponding author
# (joint) last author

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