Ja. Godines et al., A CHEMICAL ETCHING SOLUTION FOR THE DETERMINATION OF THE CRYSTALLOGRAPHIC ORIENTATION OF GASB BY OPTICAL REFLECTOGRAMS, Journal of the Electrochemical Society, 141(8), 1994, pp. 2220-2222
GaSb ingots were oriented along the low index crystal planes, (111), (
110), and (100), using an optical technique. The surfaces etched with
an HCl:CuCl solution show very well-defined figures, revealing the hig
h symmetry of the surface orientations. The reflectograms obtained fro
m these surfaces allow the precise orientation of GaSb crystals, and t
hey can be used to distinguish between the (111)A and (111)B faces.