Growth, Characterization and Device Development in Monocrystalline Diamond Films
Abstract:
In this reporting period, diamond films have been deposited on various polycrystalline metal and 001 Si substrates by biased hot filament chemical vapor deposition, the films characterized by TEM, x-ray diffraction and Raman and Auger spectroscopies and MESFET devices modeled from the properties of diamond. In addition Cu single crystals were implanted at 900 deg C with C ions and other studies initiated in an attempt to achieve heteroepitaxial growth of diamond. Films grown on Si, Ni and W exhibited the highest quality diamond films from the viewpoint of Raman characterization. The model of the MESFET device with gate length 1 micron and width 1 mm showed that significant degradation in RF performance is not expected at 10 GHz.