ABSTRACT

A stacking fault in the zinc-blende (ZB) (111) direction can be described as an insertion of one monolayer of wurtzite structure, sandwiched between two ZB structures that have been rotated 60° along the growth direction [4]. Structurally, formation of the stacking fault in ZB structure is in the same as it is in the face-center-cubic (fee) lattice. Therefore, it is expected that extrinsic and intrinsic fault involves insertion or removal of a pair of {1 1 1 } planes (that is, cation and anion lattice planes) to preserve tetrahedral condition [5]. There are two types partial edge dislocations, depending on weather the extra half plane of stacking faults lies [6 ].