Wang, Y.-L., Xu, J.-J., Lin, Y.-W., Shan, H.-Q., Yan, Y., Roy, V.A.L. and Xu, Z.-X. (2015) Tetra-methyl substituted copper (II) phthalocyanine as a hole injection enhancer in organic light-emitting diodes. AIP Advances, 5(10), 107205. (doi: 10.1063/1.4932633)
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Abstract
We have enhanced hole injection and lifetime in organic light-emitting diodes (OLEDs) by incorporating the isomeric metal phthalocyanine, CuMePc, as a hole injection enhancer. The OLED devices containing CuMePc as a hole injection layer (HIL) exhibited higher luminous efficiency and operational lifetime than those using a CuPc layer and without a HIL. The effect of CuMePc thickness on device performance was investigated. Atomic force microscope (AFM) studies revealed that the thin films were smooth and uniform because the mixture of CuMePc isomers depressed crystallization within the layer. This may have caused the observed enhanced hole injection, indicating that CuMePc is a promising HIL material for highly efficient OLEDs.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Vellaisamy, Professor Roy |
| Authors: | Wang, Y.-L., Xu, J.-J., Lin, Y.-W., Shan, H.-Q., Yan, Y., Roy, V.A.L., and Xu, Z.-X. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | AIP Advances |
| Publisher: | American Institute of Physics |
| ISSN: | 2158-3226 |
| ISSN (Online): | 2158-3226 |
| Published Online: | 05 October 2015 |
| Copyright Holders: | Copyright © Author(s) 2015 |
| First Published: | First published in AIP Advances 10:107205 |
| Publisher Policy: | Reproduced under a Creative Commons Licence |
| Related URLs: |
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