ISSN:
1432-0630
Keywords:
72.20
;
72.80J
;
70.90
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract An ac impedance method has been used to study the electrical properties of an illuminated HgI2 crystal as a function of temperature [10–350 K] and frequency [1–104 Hz]. The complex impedance plane plots enabled us to determine the bulk resistance of the crystal as a function of temperature. Activation energies of [0.08±0.005 eV] and [0.25 ±0.01eV] are then found; they are attributed to acceptor and donor trapping levels, respectively. At temperatures lower than 230 K, a weak temperature dependence of the bulk resistance is observed. This weak dependence is supposed to be due to photoconductivity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00616722
