MRS Proceedings

Articles

Near Infrared Fluorescent and Phosphorescent Organic Light-Emitting Devices

2009 MRS Spring Meeting.

Yixing Yanga1, Richard Farleya2, Timothy Stecklera3, Jonathan Sommera4, Sang Hyun Eoma5, Kenneth Grahama6, John Reynoldsa7, Kirk Schanzea8 and Jiangeng Xuea9

a1 yixingyang@ufl.edu, University of Florida, Department of Materials Science and Engineering, Gainesville, Florida, United States

a2 rfarley@chem.ufl.edu, University of Florida, Department of Chemistry, Gainesville, Florida, United States

a3 cellulosenitrate@hotmail.com, University of Florida, Department of Chemistry, Gainesville, Florida, United States

a4 jsommer@chem.ufl.edu, University of Florida, Department of Chemistry, Gainesville, Florida, United States

a5 sheom@ufl.edu, University of Florida, Department of Materials Science and Engineering, Gainesville, Florida, United States

a6 kgraham@chem.ufl.edu, University of Florida, Department of Chemistry, Gainesville, Florida, United States

a7 reynolds@chem.ufl.edu, United States

a8 kschanze@chem.ufl.edu, University of Florida, Department of Chemistry, Gainesville, Florida, United States

a9 jxue@mse.ufl.edu, University of Florida, Department of Materials Science and Engineering, Gainesville, Florida, United States

Abstract

Organic light-emitting devices (OLEDs) emitting near-infrared (NIR) light have many potential applications, yet the efficiency of these devices remains very low, typically ˜0.1% or less. Here we report efficiency NIR OLEDs based on two fluorescent donor-acceptor-donor oligomers and a phosphorescent Pt-containing organometallic complex. External quantum efficiencies in the range of 0.5–3.8% with emission peak ranging from 700 to 890 nm have been achieved.

(Received April 05 2009)

(Accepted May 21 2009)

Key Words

  • electronic material;
  • organic;
  • luminescence
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