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Durham University

Department of Engineering

Staff Profile

Publication details for Professor Michael Petty

Ahn, JH, Bertoni, C, Dunn, S, Wang, CS, Talapin, DV, Gaponik, N, Eychmuller, A, Hua, YL, Bryce, MR & Petty, MC (2007). White organic light-emitting devices incorporating nanoparticles of II-VI semiconductors. Nanotechnology 18(33): 335202.
  • Publication type: Journal Article
  • ISSN/ISBN: 0957-4484

Author(s) from Durham


A blue-green fluorescent organic dye and red-emitting nanoparticles,
based on II-VI semiconductors, have been used together in the
fabrication of white organic light-emitting devices. In this work, the
materials were combined in two different ways: in the form of a blend,
and as separate layers deposited on the opposite sides of the
substrate. The blended-layer structure provided purer white emission.
However, this device also exhibited a number of disadvantages, namely a
high drive voltage, a low efficiency and some colour instability. These
problems could be avoided by using a device structure that was
fabricated using separate dye and nanoparticle layers.