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.
Original language | English |
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Article number | 650 |
Journal | Nanoscale Research Letters |
Volume | 7 |
DOIs | |
State | Published - 2012 |
Keywords
- Cu-phthalocyanine
- Fe/MgO(001) epilayers
- Hybrid organic spintronics hybrid structures
- Organic light-emitting diode
- Thermal stability