Diamond film and method of producing same

摘要

A method for making a quasi-single crystal diamond is provided. Small diamond granules, like islands, are epitaxially grown on a single crystal substrate having a lattice constant which is similar to that of diamond. A deposition layer is formed on the island diamond granules. The initial substrate is eliminated. Diamond is grown on the deposition layer having diamond granules to make a diamond film having a certain thickness. The initially-grown diamond granules which have the same crystallographical direction align the direction of crystals of the latter-grown diamond by playing a role of seed crystals.