Dislocations in thin flakes of single crystals were observed using transmission electron microscopy. It was found that dislocations occurred as two-fold ribbons having various stacking-fault widths, extended nodes or undissociated dislocations. An estimate of the ratio of the stacking-fault energy to the shear modulus was deduced from the width of the dislocation ribbons and from the radius of the extended nodes. The ratio varied from 4 x 10-12 to 2 x 10-11.

Transmission Electron Microscopic Studies of Stacking Faults in Molybdenum Diselenide. M.K.Agarwal, B.Joseph: Journal of Physics D, 1976, 9, 607