New direct evidence of point defects interacting with dislocations and grain boundaries in diamond

The correlation of TEM imaging and micro-photoluminescence studies of electron irradiated areas of diamond, developed in Bristol, has been extended to new optical centres and defects. In this paper, we show new evidence of the interaction of point defects with dislocations and grain boundaries in diamond. Optical centres at 518.6 and 518.8 nm are directly correlated with dislocations and an optical centre at 519.1 nm was correlated with a grain boundary. (c) 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.