Microtexture and Grain Boundaries in Freestanding CVD Diamond Films: Growth and Twinning Mechanisms | Zendy

Liu Tao | Zendy; Raabe Dierk | Zendy; Mao Weimin | Zendy; Zaefferer Stefan | Zendy

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Microtexture and Grain Boundaries in Freestanding CVD Diamond Films: Growth and Twinning Mechanisms

Author(s) -

Liu Tao,

Raabe Dierk,

Mao Weimin,

Zaefferer Stefan

Publication year - 2009

Publication title -

advanced functional materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 6.069

H-Index - 322

eISSN - 1616-3028

pISSN - 1616-301X

DOI - 10.1002/adfm.200901231

Subject(s) - materials science , crystal twinning , chemical vapor deposition , diamond , grain boundary , substrate (aquarium) , diffraction , deposition (geology) , crystallography , composite material , optics , nanotechnology , microstructure , paleontology , oceanography , physics , chemistry , sediment , geology , biology

Three groups of free‐standing chemical vapor deposition (CVD) diamond films formed with variations in substrate temperature, methane concentration, and film thickness are analyzed using high‐resolution electron back‐scattering diffraction. Primarily {001}, {110}, and {111} fiber textures are observed. In addition, corresponding primary and higher order twinning components are found. As interfaces, high angle, low angle, primary twin, and secondary twin boundaries are observed. A growth and a twinning model are proposed based on the sp 3 hybridization of the bond in the CH 4 molecule that is used as the deposition medium.

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