Please use this identifier to cite or link to this item: http://ktisis.cut.ac.cy/handle/10488/7645
Title: The effect of interfacial layer on the performance of organic light-emitting diodes
Authors: Choulis, Stelios A. 
Choong, Vi-En 
Mathai, Mathew K. 
Keywords: Light emitting diodes
Polymers
Electroluminescence
Issue Date: 2005
Publisher: American Institute of Physics
Source: Applied physics letters, 2005, Volume 87, Issue 11, Pages 1-3
Abstract: We demonstrate high efficiency organic light-emitting devices by incorporation of a nanoscale interfacial layer between a hole-conducting layer (PEDOT:PSS) and a light-emitting polymer layer (LEP) to improve hole injection. The interfacial layer has appropriate highest occupied molecular orbital level in order to act as a bridge for efficient hole injection from the PEDOT:PSS into the LEP. As an example we have incorporated a suitable interfacial layer into a green-emitting single-layer electrophosphorescent light-emitting diode. Devices with the interfacial layer show a peak efficiency of 41 lm/W, an improvement of more than 25% in their performance over comparable devices without the interfacial layer. The results presented here introduce a novel method to improve hole injection and thus efficiency in organic electroluminescent devices
URI: http://ktisis.cut.ac.cy/handle/10488/7645
ISSN: 0003-6951 (print)
1077-3118 (online)
DOI: 10.1063/1.2042635
Rights: © 2005 American Institute of Physics
metadata.dc.type: Article
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