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Bi2Te3 Pellets for semiconductors

Element name Bi2Te3
Atomic weight
Element type Metal element
Physical traits ingot, powder, pellets
Product purity 4N, 5N
Product specifications As requests

1.    MATERIAL OVERVIEW 

 

Characteristics:

Bismuth telluride is a compound of tellurium and bismuth. When alloyed with selenium or antimony, it acts as an efficient thermoelectric material suitable for portable power generation or refrigeration. It is a narrow gap layered semiconductor with a trigonal unit cell. It mainly occurs in a rare mineral tellurobismuthite. It is produced by sealing bismuth and tellurium metals in a quartz tube under vacuum.

Applications:

Bismuth telluride finds applications in the following:

Power generation or cooling applications

Topological insulators.

 

 

Pellet Regular size: 1.6*1.6*2.0mm,1.4*1.4*1.7mm,5*5*5*5mm,10*10*10mm and so on

Also could produce small size much less than 1.00 mm like 0.35mm and so on

 

bar/ingot diameter is 28-35mm

 

We could also produce according to customer requirement

Welcome to contact us        

 

 

2. GENERAL PROPERTIES

  

Symbol:

Bi2Te3

CAS:                           

1304-82-1

Atomic Weight:

800.76

Group

Bismuth – 15
Tellurium - 16

Crystal Structure

Hexagonal-Rhombohedral

Lattice Constant

a = 4.38 Å
c = 30.45 Å

Density:

7.73 g/cm3

Melting Point:

585°C

Mohs Hardness

1.8

Electron Mobility

1140 cm2/Vs

Hole Mobility

680 cm2/Vs

Thermal Conductivity

3 W/mK

 

3. Specification 

P-type ingot:

1. Purity: 99.99%

2. Thermal conductivity (k): 1.2-1.6w/m.K

3. Seebeck (S) : 200-230 uV

4. Electrical conductivity (rou): 850-1250

5. Figure of merit (Z): 2.55- 3.4×10-3.K-1.

 6. ZT>=1.1@300K

N-type ingot:

1. Purity: 99.99%

2. Thermal conductivity (k): 1.2-1.6w/m.K

3. Seebeck (S) : 205-235 uV

4. Electrical conductivity (rou): 850-1250

5. Figure of merit (Z): 2.34-3.2×10-3. K-1. 

6. ZT>=1.1@300K

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