Product Details:
Payment & Shipping Terms:
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| Name: | N P Type Bismuth Telluride Legs | Other Name: | Bi2Te3 Particles |
|---|---|---|---|
| Appearance: | Dark Grey Pellets | CAS NO.: | 1304-82-1 |
| Symbol: | Bi2Te3 | Doping: | P Type Doped Antimony/N Type Doped Selenium |
| Type: | Particles | Standard Size: | 1.4*1.4*1.6mm |
| Surface: | With Ni Or Sn Plating | Melting Point: | 586℃ |
| Thermal Conductivity: | 3 W/mK | Density: | 7.73 G/cm3 |
| Application: | II-VI Compound Semiconductor Materials,thermoelectric Cooler Elements,thermoelectric Converting Elements |
| Tellurium Series | Purity | Size |
| High purity Tellurium | 5N-7N | |
| Tellurium Ingot | 4N-5N | |
| Tellurium Granules | 4N-5N | |
| Tellurium Powder | 4N-5N | 100 Mesh -400 Mesh |
| Tellurium Shot/Pellet | 4N-5N | 0.5-2.5 mm |
| Tellurium Dioxide | 4N-5N | 100 mesh |
| Bismuth telluride | 4n-5n | Pellets,Ingots, Bars or Wafers |
| Cadmium telluride | 4n-7n |
2.Product Descriptions
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
1. It is commonly used in physical vapor deposition processes, Thermal analysis test cup, Aluminum die-casting mould coating;
2. II-VI compound semiconductor materials, thermoelectric converting elements;
3. Refrigeration elements, piezo crystal and infrared detectors, test instruments, chemical vapor deposition.
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 |
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 |
Generally will be vacuum packed in polyester bag or bottle to prevents oxidation and keeps your elements shine forever. Also could be packed according to customer request.
First step: |
Packed in vacuum polyester bag/ plastic bag. |
Second step: |
Packed in vacuum polyester bag or aluminum foil bag again. |
Third step: |
Wrapped with bubble, load to the carton and seal the carton |
Shipping time: it usually takes about 3 workdays after payment confirmed or depends on the order quantity and requirements.
Shipping way: by Air,Sea,Courier such as FedEx,DHL,UPS,EMS or as you designated.
