Skip to main content

Efficient Phosphorescent White Organic Light-Emitting Diodes Using Ir(4-Me-2,3-dpq)2(przl-C6H4F) as a Red Emitter

Buy Article:

$113.00 plus tax (Refund Policy)

Abstract:

We demonstrated white organic light-emitting diodes (WOLED) using the iridium bis(4-methyl-2,3-phenylquinolinato-N,C2) fluorophenylpyrazolonate complex (Ir(4-Me-2,3-dpq)2(przl-C6H4F)) as a phosphorescent red dopant and iridium bis[(4,6-difluorophenyl)-pyridinato-N,C2] picolinate (FIrpic) as a phosphorescent blue dopant. The WOLED with Ir(4-Me-2,3-dpq)2(przl-C6H4F) had better exciton confinement in emitting layer and indicated smaller movement of exciton than the WOLED with iridium bis(2-phenylquinoline) acetylacetonate (Ir(2-pq)2(acac)) as phosphorescent red dopant. The optimized WOLED had a peak external quantum efficiency of 7.16%, current efficiency of 11.84 cd/A, and Commission Internationale de I'Eclairage (CIE x,y ) coordinates of (0.35, 0.32). The WOLED also exhibited the minimal change with ΔCIE x,y coordinates of ±(0.01, 0.00) from 100 to 4000 cd/m2.

Keywords: IRIDIUM BIS(4-METHYL-2,3-PHENYLQUINOLINATO-N,C2) FLUOROPHENYLPYRAZOLONATE COMPLEX; IRIDIUM BIS[(4,6-DIFLUOROPHENYL)-PYRIDINATO-N,C2] PICOLINATE; WHITE ORGANIC LIGHT-EMITTING DIODES

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2011.4800

Publication date: 2011-08-01

More about this publication?
  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more