Surface zeta potential and diamond growth on gallium oxide single crystal
Soumen Mandal,
Karsten Arts,
Harm C. M. Knoops
et al.
Abstract:In this work a strategy to grow diamond on β-Ga 2 O 3 has been presented. The ζ-potential of the β-Ga 2 O 3 substrate was measured and it was found to be negative with an isoelectric point at pH ∼ 4.6. The substrates were seeded with mono-dispersed diamond solution for growth of diamond. The seeded substrates were etched when exposed to diamond growth plasma and globules of gallium could be seen on the surface. To overcome the problem ∼100 nm of SiO 2 and Al 2 O 3 were deposited using atomic layer deposition. … Show more
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