%0 Journal Article %A Alegre, Maria de la Paz %A Araújo Gay, Daniel %A Fiori, Alexandre %A Pinero, Jose Carlos %A Lloret, Fernando %A Villar Castro, María del Pilar %A Achatz, Philippe %A Chicot, Gauthier %A Bustarret, Etienne %A Jomard, F %T Critical boron-doping levels for generation of dislocations in synthetic diamond %D 2014 %@ 0003-6951 %U http://hdl.handle.net/10498/17159 %X Defects induced by boron doping in diamond layers were studied by transmission electron microscopy. The existence of a critical boron doping level above which defects are generated is reported. This level is found to be dependent on the CH4 /H2 molar ratios and on growth directions. The critical boron concentration lied in the 6.5–17.0 X 10 20 at/cm3 range in the <111> direction and at 3.2 X 1021 at/cm 3 for the <001> one. Strain related effects induced by the doping are shown not to be responsible. From the location of dislocations and their Burger vectors, a model is proposed, together with their generation mechanism. %K Defect %K synthetic diamond %K CTEM %K boron doped diamond %~ Universidad de Cádiz