Thermoelectric Properties of Ti Doping in Bismuth Telluride

The Ti-doped Bi 2 Te 3 with concentrations 1, 3, and 5 in % Ti were synthesized using a simple powder metallurgy method. It is revealed that the optimum Ti addition in parent material changes the conduction type from undoped n-type into p-type with 1...…

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Thermoelectrics of Bismuth Telluride

In 1821, T.J. Seebeck discovered the Seebeck effect when he noticed that a compass needle was deflected when a metal was heated with a heat gradient. He called the effect thermomagnetism. Oersted later redefined it when he observed that an electric c...…

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The Hall Effect of Bismuth Telluride

Eighteen years before anyone understood what an electron was or that they existed, back when the current was thought to be an incompressible fluid, Edwin Hall, while working on his dissertation, discovered that when applying a current along a thin go...…

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Electronic Transport in Thermoelectric Bismuth Telluride

An experimental investigation of the electronic transport properties of bismuth telluride nanocomposite materials is presented. The primary transport measurements are electrical conductivity, the Seebeck coefficient, and the Hall effect. An experimen...…

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Bismuth Telluride Bi2Te3

Bismuth telluride (Bi2Te3) is a gray or black hexagonal platelet with a metallic luster or gray powder. It is an alloy of two metallic elements (Bismuth and tellurium), also known as Bismuth (III) telluride. When alloyed with antimony or selenium, it...…

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Typical Applications of Bismuth Telluride

What is Bismuth telluride?Bismuth telluride (Bi2Te3) is a gray or black hexagonal platelet with a metallic luster or gray powder. It is an alloy of two metallic elements (bismuth and tellurium), also known as bismuth(III) telluride. When alloyed with...…

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Electronic Transport of Bismuth telluride

The electronic transport properties vary significantly with alloy composition. Pisarenko plot fits of Seebeck versus Hall carrier concentration using a single valley effective mass model assuming potential deformation scattering find that the Seebeck...…

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Crystal Structure of Bismuth telluride

Bismuth telluride, bismuth selenide, and all intermediate alloys Bi2Te3−xSex have the tetradymite crystal structure in the symmetry group R3¯m. The material is comprised of repeating quintuple layers of X(1)–Bi–X(2)–Bi–X(1), where the number in paren...…

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The n-type Bi2Te3-Bi2Se3 alloy is less straightforward.

The n-type Bi2Te3-Bi2Se3 alloy is less straightforward. Mass contrast alloy scattering modeling does not match thermal conductivity values reported in the literature, and there is wide variability in qualitative trends reported. The electronic band s...…

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Introduction of Bismuth Telluride

Bismuth telluride is the dominant thermoelectric material for applications near room temperature due to its inherently low lattice thermal conductivity and high electronic weighted mobility. Its performance is ultimately limited by the harmful effect...…

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The Thermoelectric Properties of Bismuth Telluride

Bismuth telluride is the working material for most Peltier cooling devices and thermoelectric generators. Bi2Te3 (or, more precisely, its alloys with Sb2Te3 for p-type and Bi2Se3 for n-type material) has the highest thermoelectric figure of merit, zT...…

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Electronic Structure of Bismuth Telluride

What is Bismuth Telluride?Bismuth Telluride is a narrow gap-layered semiconductor with high thermal conductivity. Recent research has confirmed that bismuth telluride may significantly increase the speed of microchips and be the basis for the emergin...…

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