Growth of high-quality homoepitaxial diamond films by HF-CVD

Stammler M, Eisenbeiß H, Ristein J, Neubauer J, Göbbels M, Ley L, Ristein J, Ley L (2002)

Publication Language: English

Publication Type: Journal article

Publication year: 2002

Journal

Diamond and Related Materials Elsevier

Publisher: Elsevier

Book Volume: 11

Pages Range: 504-508

Journal Issue: 3-6

DOI: 10.1016/S0925-9635(01)00627-6

Abstract

Defined growth of high-quality crystalline diamond films is necessary for manufacturing of electronic devices. Several groups have already worked on this topic and the main challenges remaining are the suppression of crystalline defects, the reduction of impurities and higher growth rates. High-quality homoepitaxial diamond films were produced in a hot filament chemical vapor deposition (HF-CVD) system with and without addition of nitrogen to the gas phase. Substrates were (100)-oriented synthetic Ib diamonds (Sumitomo) with a maximum misorientation angle of 0.3° as determined by X-ray diffraction. By adjusting the α parameter independently to a value close to two using polycrystalline diamond films on silicon growth rates of up to 500 nm/h could be achieved while simultaneously keeping the density of unepitaxial crystallites below 10 cm-2. The surface roughness (RMS) was below 1 nm in a 1 × 1-μm2 area. Impurities were studied by photoluminescence and cathodoluminescence spectroscopy. For the films deposited without intentional nitrogen addition, nitrogen-related impurities could only be detected by low temperature photoluminescence indicating a very low concentration. At 1.68 eV we observed the signature of the Si-vacancy complex probably caused by evaporation of Si from the tungsten filament. © 2002 Elsevier Science B.V. All rights reserved.

Authors with CRIS profile

Jürgen Ristein Lehrstuhl für Laserphysik Jürgen Neubauer Lehrstuhl für Mineralogie Matthias Göbbels Lehrstuhl für Mineralogie Lothar Ley Naturwissenschaftliche Fakultät

How to cite

APA:

Stammler, M., Eisenbeiß, H., Ristein, J., Neubauer, J., Göbbels, M., Ley, L.,... Ley, L. (2002). Growth of high-quality homoepitaxial diamond films by HF-CVD. Diamond and Related Materials, 11(3-6), 504-508. https://dx.doi.org/10.1016/S0925-9635(01)00627-6

MLA:

Stammler, Markus, et al. "Growth of high-quality homoepitaxial diamond films by HF-CVD." Diamond and Related Materials 11.3-6 (2002): 504-508.

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