Comparison of Natural Type Ia Diamond and CVD Diamond Films by Photoluminescence
The crystal defects in diamonds are diverse. In other words, there are almost no perfect diamonds without impurities or dislocations. Most natural diamonds contain a considerable amount of nitrogen impurity in aggregated forms. CVD diamond films also included many crystal defects. We investigated the distribution of luminescence center of natural type Ia diamonds and CVD diamond films by various photoluminescence excitation source. Photoluminescence (PL) spectroscopy is a useful technique to provide information on defects of diamond with high sensitivity.
Byung Tae Ahn, Hyeongtag Jeon, Bo Young Hur, Kibae Kim and Jong Wan Park
J. K. Seo et al., "Comparison of Natural Type Ia Diamond and CVD Diamond Films by Photoluminescence", Solid State Phenomena, Vols. 124-126, pp. 467-470, 2007