Effectiveness of tris-(8-Hydroxyquinoline)-aluminum doped with cesium-derivatives in organic light-emitting diodes
Resource
Thin Solid Films, 518(14), 3942-3944
Journal
Thin Solid Films
Journal Volume
518
Journal Issue
14
Pages
3942-3944
Date Issued
2010-05
Author(s)
Abstract
The effectiveness of Cs-derivatives, including cesium carbonate (Cs2CO3), cesium fluoride (CsF), and cesium nitrite (CsNO3), as dopants of tris-(8-Hydroxyquinoline)-aluminum (Alq3) in organic light-emitting diodes (OLEDs) were investigated via photoemission spectroscopy and current-voltage characteristics. The n-type doping of Cs2CO3 in Alq3 is most effective. In current injection efficiency, the performance of OLEDs with CsF in cathode structures is similar to that with Cs2CO3, working well with both aluminum and silver in cathodes. As for CsNO3, it is effective only with aluminum cathode due to the reaction between aluminum and CsNO3. © 2010 Elsevier B.V. All rights reserved.
SDGs
Type
journal article