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Growth and characterization of pure and doped lead hydrogen phosphate single crystals in silica gel
Author(s) -
Manimekalai R.,
Balakrishnan T.,
Ramamurthi K.
Publication year - 1994
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170290605
Subject(s) - phosphoric acid , phosphate , inorganic chemistry , hydrogen , silica gel , chemistry , doping , sol gel , ion , materials science , nuclear chemistry , nanotechnology , chromatography , organic chemistry , optoelectronics
Following the chemical reaction method pure and doped lead hydrogen phosphate single crystals were grown in silica gel using different gel density, various concentrations of phosphoric acid, and lead nitrate solutions. As the gel pH plays an important role in the formation of different H 3 PO 4 species in the phosphoric acid system, the pH range in which HPO 4 −2ions dominate, was considered which in turn in necessary for the growth of lead hydrogen phosphate crystals. Characteristics of these crystals were carried out by infrared spectral analysis and microhardness study.