Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/1429
Title: The effect of interfacial layer on the performance of organic light-emitting diodes
Authors: Choulis, Stelios A. 
Choong, Vi-En 
Mathai, Mathew K. 
metadata.dc.contributor.other: Χούλης, Στέλιος Α.
Major Field of Science: Engineering and Technology
Field Category: ENGINEERING AND TECHNOLOGY
Keywords: Light emitting diodes;Polymers;Electroluminescence
Issue Date: Jul-2005
Source: Applied physics letters, 2005, vol. 87, no. 11, pp. 1-3
Volume: 87
Issue: 11
Start page: 1
End page: 3
Journal: Applied Physics Letters 
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: https://hdl.handle.net/20.500.14279/1429
ISSN: 1077-3118
DOI: 10.1063/1.2042635
Rights: © American Institute of Physics
Attribution-NonCommercial-NoDerivs 3.0 United States
Type: Article
Affiliation: Osram Opto Semiconductors, Inc. 
Affiliation : Imperial College London 
Appears in Collections:Άρθρα/Articles

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