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: | 10773118 |
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 |
Publication Type: | Peer Reviewed |
Appears in Collections: | Άρθρα/Articles |
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