Controlling hole injection in organic electroluminescent device by sputter-grown Cu-phthalocyanine thin films
- 5 March 2001
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 78 (10) , 1445-1447
- https://doi.org/10.1063/1.1351842
Abstract
A sputter-grown Cu-phthalocyanine (SG-CuPc) thin films have been employed to control the anode interface of organic electroluminescent device (OELD). Insertion of a thin SG-CuPc between the indium tin oxide and hole-transport layers enhances the hole injection in a controllable manner, which can increase the device efficiency and decrease the operation voltage without increasing the interface roughness. Time–voltage–luminescence measurements show the improved operational durability of the thin SG-CuPc inserted OELD.Keywords
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