Synthesis of a neodymium-quinolate complex for near-infrared electroluminescence applications

A. O'Riordan, R. Van Deun, E. Mairiaux, S. Moynihan, P. Fias, Peter Nockemann, K. Binnemans, G. Redmond

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30 Citations (Scopus)


A structurally pure, near-infrared emissive Nd-(5,7-dichloro-8-hydroxyquinoline)4 tetrakis complex has been synthesized. When incorporated as a dopant in the blue emissive, hole conducting polymer poly(N-vinylcarbazole), PVK, sensitized neodymium ion emission was observed following photo-excitation of the polymer host. OLED devices were fabricated by spin-casting layers of the doped polymer onto glass/indium tin oxide (ITO)/3,4-polyethylene-dioxythiophene-polystyrene sulfonate (PEDOT) substrates. An external quantum efficiency of 1 x 10(-3)% and a near-infrared irradiance of 2.0 nW/mm(2) at 25 mA/mm(2) and 20 V was achieved using glass/ITO/PEDOT/ PVK:Nd-(5,7-dichloro-8-hydroxyquinoline)(4)/Ca/Al devices. (C) 2007 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)5098-5102
Number of pages5
JournalThin Solid Films
Issue number15
Publication statusPublished - 02 Jun 2008

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces


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