Takumi Shibata

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Organic light-emitting diodes (OLEDs) are attractive for next-generation displays and lighting applications because of their potential for high electroluminescence (EL) efficiency, flexibility and low-cost manufacture. Although phosphorescent emitters containing rare metals such as iridium or platinum produce devices with high EL efficiency, these metals(More)
A/sub 0.26/Ga/sub 0.74/N/AlN/GaN heterostructures with 1-nm-thick AlN interfacial layers were grown on 100-mm-diameter epitaxial AlN/sapphire templates and sapphire substrates by metalorganic vapor phase epitaxy (MOVPE). Very high Hall mobilities of approximately 2100 cm/sup 2//Vs at room temperature and approximately 25000 cm/sup 2//Vs at 15 K with a 2DEG(More)
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