|
L-glycine single crystals were grown by slow evaporation technique. The crystals
are subjected to microhardness studies and the variation of the microhardness with the applied
load is studied. Microhardness studies revealed that the hardness of the grown crystal
increases with an increase in load. Meyers index number n was calculated and found that the
material belongs to soft material category. The dielectric measurements are carried out and
the nature of variation of dielectric constant and dielectric loss in the frequency range of
50 Hz to 5 MHz at different temperatures (30 °C, 60 °C, 90 °C, 120 °C,
and 150 °C) is studied
and reported. Further, electronic properties, such as valence electron plasma energy, Penn
gap, Fermi energy and electronic polarizability of the grown crystal have been estimated.
Photoconductivity measurements carried out on the grown crystal reveal the negative
photoconducting nature.
Keywords: single crystal; growth from solution; microhardness; dielectric and photoconductivity studies |
full paper (pdf, 1072 Kb)