Title of article :
Estimate the value of CdTe thermal evaporation activation energy
Author/Authors :
Faiq, Esraa Al-Esraa University College - Baghdad, Iraq , Ahmed, Ali M Al-Esraa University College - Baghdad, Iraq , Yousif, Lujain N Al-Esraa University College - Baghdad, Iraq , Mohammed, Mohammed Q Al-Esraa University College - Baghdad, Iraq
Abstract :
This research describes the thermopower and electric conductivity of CdTe films produced using
thermal evaporation technology; the energy activation value of this electrical and thermoelectrically
properties are estimated. CdTe sheets have an electrical resistance of about (107. cm). Conductivity
was studied, and it was found that the electrical conductivity increased with temperature. At low
temperatures, there are two values of activation energy (Ea1 = 0.337eV ) because of this dependence,
but at high temperatures, (Ea2 = 0.702eV ) is the only value of activation energy. The Seebeck
coefficient (thermopower) was researched to find that it was temperature-dependent, and it was
found that, as the temperature increased, the Seebeck coefficient decreased. The experiment results
on thermoelectric power were summarized in a two-paragraph statement. The activation energy was
measured to be (ES = 0.561eV ), and the CdTe film was shown to be p-type conductive.
Keywords :
Energy , CdTe , Thermal Evaporation , Seebeck coefficient
Journal title :
International Journal of Nonlinear Analysis and Applications