Author:
Bae Yu Jeong,Lee Nyun Jong,Kim Tae Hee,Cho Hyunduck,Lee Changhee,Fleet Luke,Hirohata Atsufumi
Abstract
Abstract
Surface morphology and thermal stability of Cu-phthalocyanine (CuPc) films grown on an epitaxially grown MgO(001) layer were investigated by using atomic force microscope and X-ray diffractometer. The (002) textured β phase of CuPc films were prepared at room temperature beyond the epitaxial MgO/Fe/MgO(001) buffer layer by the vacuum deposition technique. The CuPc structure remained stable even after post-annealing at 350°C for 1 h under vacuum, which is an important advantage of device fabrication. In order to improve the device performance, we investigated also current-voltage-luminescence characteristics for the new top-emitting organic light-emitting diodes with different thicknesses of CuPc layer.
Publisher
Springer Science and Business Media LLC
Subject
Condensed Matter Physics,General Materials Science
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