Fabrication and electrical properties of SrTiO3/diamond junctions

作者: Guang-chao Chen , Meiyong Liao , Masataka Imura , Kiyomi Nakajima , Yoshimasa Sugimoto

DOI: 10.1016/J.DIAMOND.2010.01.001

关键词: Physical vapor depositionDiamond-like carbonSputter depositionMaterials scienceCrystallinityOptoelectronicsDiamondMineralogyAmorphous solidStrontium titanateThin film

摘要: Abstract Strontium titanate (STO) films were directly deposited on Ib (100) single crystal diamond by r.f. magnetron sputtering. The as-deposited STO film was in amorphous state. On the other hand, crystalline obtained under optimized condition of a deposition temperature 250 °C and post-annealing 650 °C. STO/diamond junctions fabricated boron-doped homoepitaxial layers grown p + -type substrates. Electrical properties junction investigated changing surface terminations with hydrogen or oxygen crystallinity film. It found that acted like semi-insulator H-diamond STO/O-diamond behaved Schottky diode. showed complex rectifying behavior. possessed higher dielectric constant as compared to one.

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