NOT KNOWN FACTUAL STATEMENTS ABOUT COLOR CENTER DIAMOND CRYSTAL

The luminescent Ge-similar composition was prepared by ion implantation of Ge ions into diamond and subsequent annealing or CVD. Large purity IIa-sort (001) single-crystal diamond substrates (Component 6, Digital quality) ended up utilized for the ion implantation experiments. The amount of nitrogen impurities while in the substrate is beneath 5 pp