ISSN:
1432-0630
Keywords:
2.20
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract We investigate the effects of the ambient temperature (T), both temperature (T a )and time (t a )of annealing on the electrical conductivity (σ), and the Seebeck coefficient (S) of Sb2Te3. We concluded that both holes and electrons can participate to the conduction process. The material behaves as a semimetal. Although the Seebeck coefficient possesses a plus sign, the coefficient of S vs. $$\frac{1}{T}$$ plots was negative as a degenerate semiconductor. The decrease in value of S with increasing t a was attributed to a corresponding decrease in the amount of positional disorder which acts as an electron trap center.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00324584
