Etching behavior of PbTe and Pb1 − x Sn x Te crystal surfaces in aqueous H2O2-HBr-tartaric acid solutions

Polishing etchant compositions for the chemical treatment of the PbTe and Pb1–xSnxTe solid solutions single crystals and methods for their processing. Review

“…Also, the bromides formed during oxidation of the crystal surface layers promote transition of dissolution process into the diffusion region. In these bromine-emerging etchants, the kinetics of chemical dissolution of PbTe [15][16][17][18][19][20][21][22][23][24][25]. The peculiaritues of chemical-dynamic polishing of PbTe and Pb 1-x Sn x Te crystals in Н 2 О 2 -НBr (44 %) etchant compositions were studied, and it was ascertained that the increase of Sn content in the Pb 1-x Sn x Te solid solutions leads to a slight increase of the etching rate, but the regions of polishing solutions were without changes [15].…”