DOI

This paper reports on the results of investigations into the phase composition of HgI2 microcrystals formed in the bulk and on the surface of different nanocrystalline matrices: pressed, finely dispersed (with a specific surface of more than 210 m2/g) aluminum oxide powders; porous borosilicate glasses with pore radii ranging from 2 to 20 nm; and Al2O3-HgI2 and SiO2-HgI2 nanocrystalline composites. The results of spectroscopic analysis (diffuse reflection, absorption, and luminescence spectroscopy) are complemented by the data of atomic-force microscopy (AFM) and x-ray diffraction. The experimental results indicate that nonequilibrium modifications, namely, the high-temperature yellow phase and the orange phase metastable in bulk crystals at all temperatures, can be stabilized in HgI2 nanoparticles at room temperature.

Translated title of the contributionФормирование кристаллической фазы HgI2 в объеме и на поверхности нанокристаллических матриц
Original languageEnglish
Pages (from-to)1388-1393
Number of pages6
JournalPhysics of the Solid State
Volume44
Issue number7
DOIs
StatePublished - 1 Jul 2002

    Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

ID: 48583597