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Nanotechnology. 2017 Jun 16;28(24):245204. doi: 10.1088/1361-6528/aa6f55. Epub 2017 Apr 25.

Highly efficient inverted organic light emitting diodes by inserting a zinc oxide/polyethyleneimine (ZnO:PEI) nano-composite interfacial layer.

Nanotechnology

Rifat Kaçar, Selin Pıravadılı Mucur, Fikret Yıldız, Salih Dabak, Emine Tekin

Affiliations

  1. Materials Institute, The Scientific and Technological Research Council of Turkey (TUBITAK)-Marmara Research Center (MAM), Gebze/Kocaeli, 41470, Turkey.
  2. Department of Physics, Gebze Technical University, Gebze/Kocaeli 41400, Turkey.
  3. Nanotechnology Institute, Gebze Technical University, Gebze/Kocaeli, 41400, Turkey.

PMID: 28441144 DOI: 10.1088/1361-6528/aa6f55

Abstract

The electrode/organic interface is one of the key factors in attaining superior device performance in organic electronics, and inserting a tailor-made layer can dramatically modify its properties. The use of nano-composite (NC) materials leads to many advantages by combining materials with the objective of obtaining a desirable combination of properties. In this context, zinc oxide/polyethyleneimine (ZnO:PEI) NC film was incorporated as an interfacial layer into inverted bottom-emission organic light emitting diodes (IBOLEDs) and fully optimized. For orange-red emissive MEH-PPV based IBOLEDs, a high power efficiency of 6.1 lm W

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