White organic light-emitting devices incorporating nanoparticles of II-VI semiconductors

Ahn, JH; Bertoni, C; Dunn, S; Wang, CS; Talapin, DV; Gaponik, N; Eychmuller, A; Hua, YL; Bryce, MR; Petty, MC

Abstract

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.

Citation

Ahn, J., Bertoni, C., Dunn, S., Wang, C., Talapin, D., Gaponik, N., …Petty, M. (2007). White organic light-emitting devices incorporating nanoparticles of II-VI semiconductors. Nanotechnology, 18(33),

• Journal Article Type: Article
• Publication Date: 2007-08
• Journal: Nanotechnology
• Print ISSN: 0957-4484
• Publisher: IOP Publishing
• Volume: 18
• Issue: 33
• Public URL: https://durham-repository.worktribe.com/output/1554287