Adsorption-controlled growth of Ga<sub>2</sub>O<sub>3</sub> by suboxide molecular-beam epitaxy

نویسندگان

چکیده

This paper introduces a growth method—suboxide molecular-beam epitaxy (S-MBE)—which enables drastic enhancement in the rates of Ga2O3 and related materials to over 1 ?m h?1 an adsorption-controlled regime, combined with excellent crystallinity. Using Ga + mixture oxygen mole fraction x(O) = 0.4 as MBE source, we overcome kinetic limits that had previously hampered by MBE. We present up 1.6 1.5 for Ga2O3/Al2O3 Ga2O3/Ga2O3 structures, respectively, very high crystalline quality at unparalleled low temperature this level perfection. combine thermodynamic knowledge how create molecular beams targeted suboxides model developed S-MBE III–VI compounds identify appropriate conditions. S-MBE, demonstrate phase-pure, smooth, high-purity homoepitaxial films are thicker than 4.5 ?m. With rate anticipate significant improvement vertical Ga2O3-based devices. describe method can be applied wide range oxides. respect quality, rivals leading synthesis methods currently used production

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ژورنال

عنوان ژورنال: APL Materials

سال: 2021

ISSN: ['2166-532X']

DOI: https://doi.org/10.1063/5.0035469