Low temperature DC electrical conductivity studies of Pb1-xZnxS semiconductor compounds
Abstract
Pb1-xZnxS (x = 0 to 0.4 in steps of 0.1) ternary semiconductor material shave been prepared by co-precipitation method. The structural and electrical studies have been carried out to understand the influence of Zinc on activation energy. X-ray diffractograms showed that the Pb1-xZnxS compounds are polycrystalline in nature with cubic phase. The temperature-dependent conductivity measured in the range 300-4 K showed a change in the conduction mechanism at 62 K and 31 K. The activation energies evaluated at low and very low temperature regions. Activation energy increases and conductivity decreases with the increase of Zn in Pb1-xZnxS compounds. The samples are exhibiting low freezing temperature points indicating their capability to use in low temperature applications.
- Publication:
-
Solid State Sciences
- Pub Date:
- August 2018
- DOI:
- 10.1016/j.solidstatesciences.2018.05.015
- Bibcode:
- 2018SSSci..82...29V
- Keywords:
-
- Pb<SUB>1-x</SUB>Zn<SUB>x</SUB>S semiconductor;
- Electrical conductivity;
- Activation energy;
- VRH conduction