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Influence of substrate misorientation on the surface morphology of homoepitaxial diamond (111) films

MetadataDetails
Publication Date2016-03-18
Journalphysica status solidi (a)
AuthorsNorio Tokuda, Masahiko Ogura, Tsubasa Matsumoto, Satoshi Yamasaki, Takao Inokuma
InstitutionsNational Institute of Advanced Industrial Science and Technology, Kanazawa University
Citations13

We studied the influence of misorientation angles and directions of single crystal diamond (111) substrates on the surface morphology of homoepitaxial diamond (111) films grown by microwave plasma‐enhanced chemical vapor deposition (CVD) in the anisotropic lateral growth mode. Hillocks were completely suppressed on the diamond (111) films grown by CVD on the substrates with misorientation angles of 2° and 4°, while hillocks were formed on the CVD‐grown diamond (111) films on the substrates with misorientation angles of 0° and 1°. In addition, an atomically flat diamond (111) film was grown on the substrate with a misorientation angle of 2° toward the direction, while rough films were grown on the substrate with a misorientation angle of 2° toward the direction.