Product Details:
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| Name: | Bismuth Telluride Powder | Other Name: | Bi2Te3 Powder |
|---|---|---|---|
| Appearance: | Dark Grey | CAS NO.: | 1304-82-1 |
| Symbol: | Bi2Te3 | Doping: | P Type Doped Antimony/N Type Doped Selenium |
| Form: | Powder, Pellet, Bar | Melting Point: | 586℃ |
| Boiling Point: | 1130 °C | Density At 25 °C: | 7.642 G·cm−3 |
| Purity: | 99.99% | 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 |
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.
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.
Q: Are you trading company or manufacturer? |
A: We are factory. |
Q: What’s the purity of rare metal? |
A: Mainly supply rare metal of 99.99%-99.99999%. But in some cases, the purity could be 99.9% or lower |
Q: What’s the Mini order quantity? |
A: Mainly the MOQ is 1 kg. But in some cases, the MOQ could be 100 grams or less. |
Q: How long is your delivery time? |
A: Generally it is 3-7 days if the goods are in stock. Or it is 10-20 days if the goods are not in stock, it is according to quantity. |
Q: Do you provide sample? Is it free or extra? |
A: For the regular product within required sample quantity, we could offer the sample for free charge |
Q: What is your term of payment? |
A: For the first business. It is recommended that business is done through Alibaba. For the future business, adjust the payment terms according to customer credit. If customer with good reputation, offer T/T 30 days or even T/T 60 days. |
If you have another questions, pls feel free to contact us as below: |
