Abstract

The conditions for the gel growth of PbBr 2 were studied in this paper. The controlled reaction between the Pb(NO 3) 2 and KBr solutions by the diffusion process in a sodium metasilicate gel was used for growing PbBr 2 crystals. The following results were obtained: (1) Transparent PbBr 2 single crystals were obtained in a high-acidic gel. (2) Sizable single crystals of PbBr 2 were also grown in the liquid placed over a gel because the gel barrier had the task of slowing down the diffusion rate of reacting ions.

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