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|Title:||The effect of interfacial layer on the performance of organic light-emitting diodes||Authors:||Choulis, Stelios A.
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)
|DOI:||10.1063/1.2042635||Rights:||© 2005 American Institute of Physics||Type:||Article|
|Appears in Collections:||Άρθρα/Articles|
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