【摘 要】
：
Bi_2S_3 single crystals were grown by using a modification of Bridgman method.Measurements of the electrical conductivity,Hall effect and thermoelectric power(T
【机 构】
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Physics Department,Faculty of Science,South Valley Univ.,Qena,Egypt.,
【出 处】
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Journal of Materials Science & Technology
论文部分内容阅读
Bi_2S_3 single crystals were grown by using a modification of Bridgman method.Measurements of the electrical conductivity,Hall effect and thermoelectric power(TEP)were preformed in two crystallographic directions (parallel and perpendicular to the c-axis).The measurements showed that the electrical conductivity,Hall mobility,and Seebeck coefficient have anisotropic nature.From these measurements some physical parameters were estimated and the crystals showed n-type of conduction mechanism.Also,values of the energy gap were found to be different in the two directions.
Bi_2S_3 single crystals were grown by using a modification of Bridgman method. Measures of the electrical conductivity, Hall effect and thermoelectric power (TEP) were preformed in two crystallographic directions (parallel and perpendicular to the c-axis). The measurements showed that the electrical conductivity, Hall mobility, and Seebeck coefficient have anisotropic nature. From these measurements some physical parameters were estimated and the crystals showed n-type of conduction mechanism. Als, values of the energy gap were found to be different in the two directions.
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