| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
Junction between inorganic electrode and organic layer is difficult to control due to the large difference in characteristics of organic and inorganic materials. This research attempted vapor deposition of a polymer film on an electrode modified with a self-assembled monolayer (SAM) that has reactive terminal group, thereby forming stable interface tethered with covalent chemical bonds. In addition, a hole-transport polymer was spin-coated on the surface of the self-assembled monolayer with a reactive terminal. Subsequent UV irradiation caused to form stable covalent bonds at the interface. These "seamless interfaces" had advantages in a remarkable improvement in adhesion strength of the polymer layer as well as an enhancement of charge injection from the inorganic electrode to the polymer layer. An organic light emitting diode having the seamless interface showed substantial improvement of luminescence.
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