Some characteristic features of formation of composite material based on KDP single crystal with incorporated Al2O3·nH2O nanoparticles

• Published in: Crystal research and technology (1979) Vol. 49; no. 5; pp. 345 - 352
• Main Authors: Pritula, I. M., Kosinova, A. V., Kolybaeva, M. I., Bezkrovnaya, O. N., Grebenev, V. V., Voloshin, A. E., Vorontsov, D. A., Sofronov, D. S., Vovk, O. M., Baumer, V. N.
• Format: Journal Article
• Language: English
• Published: Blackwell Publishing Ltd 01.05.2014
• Subjects: composites; infrared spectroscopy; microstructure; nanoparticles; selective etching
• ISSN: 0232-1300; 1521-4079
• DOI: 10.1002/crat.201400056

Composite material based on KDP (KH2PO4) crystal matrix with incorporated aluminum oxyhydroxide Al2O3·nH2O nanoparticles is obtained and peculiarities of the formation of KDP:Al2O3·nH2O composite structure are studied by selective etching, optical and scanning electron microscopy. Influence of the nanoparticles on the formation of defect subsystem is analyzed. The obtained material is shown to have a zonal structure with a period independent of the concentration of nanoparticles. By means of FTIR‐spectroscopy, interaction of nanoparticles with KH2PO4 solution is studied. A model of the capture of nanoparticles by the {100} KDP crystal face is proposed. Obtained is a new composite material for the optoelectronics and nonlinear optics based on KDP crystal with incorporated Al2O3·nH2O (n = 3.5–3.6) nanoparticles. This material is shown to have a quasiperiodical zonal microstructure which period does not depend on the nanoparticle concentration. The formation of the structure of the new material is studied, and a model of nanoparticles capture by the growing crystal is proposed.