Bias-enhanced nucleation of highly oriented diamond on titanium carbide (111) substrates
The bias-enhanced nucleation (BEN) technique has been applied to TiC(111) substrates and resulted in deposition of oriented diamond particles. The orientation was observed via scanning electron microscopy. A dense region of oriented particles was not observed on the samples, presumably due to the excessive twinning of the diamond. However, micrographs taken throughout the substrate showed diamond particles having similar orientation with respect to each other. Some of the diamond particles showed evidence of azimuthal twist and tilting, resulting most likely from the ∼21% lattice mismatch. Raman spectra of the diamond crystals show a strong feature at 1332 cm-1, which is indicative of diamond, and smaller features at 1480 and 1602 cm -1 due to sp2-bonded carbon.© 1995 American Institute of Physics.
Wolter, SD; McClure, MT; Glass, JT; Stoner, BR
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