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Proceedings Paper

Morphological phenomena of CVD diamond (Part II)
Author(s): Wei Zhu; Russell F. Messier; Andrzej R. Badzian
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Paper Abstract

The morphological evolution on the (1 1 1 } and (100 } faces of CVD diamond proceeded overwhelmingly through a two-dimensional layer mechanism. However, experimental evidence on defect-facilitated renucleation on the {1 1 1} faces and direct atom attachment to the lattice on the {100} faces was also found which resulted in one-dimensional growth. The {100)-oriented films were developed through a typical competitive, evolutionary selection process with sufficient surface diffusion which leaded to the formation of the pronounced <100> textured columnar structure, whereas the {1 1 1}-faceted crystals were produced under conditions of very high adatom mobility with periodical renucleation, the preferential growth direction of which was along the <110>. On the other hand, films produced at high carbon supersaturations possessed a randomly oriented columnar structure with ball shaped clustered surface, the growth process of which was dominated by constant renucleation. While the {1 1 1}-faceted crystals were usually highly defective in their internal structure, the {100}-oriented crystals were generally planar-defect free.

Paper Details

Date Published: 1 December 1991
PDF: 13 pages
Proc. SPIE 1534, Diamond Optics IV, (1 December 1991); doi: 10.1117/12.48297
Show Author Affiliations
Wei Zhu, North Carolina State Univ. (United States)
Russell F. Messier, The Pennsylvania State Univ. (United States)
Andrzej R. Badzian, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 1534:
Diamond Optics IV
Albert Feldman; Sandor Holly, Editor(s)

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