Basic Info.
Model NO.
bismuth telluride
Customized
Non-Customized
Application
Thermoelectric Device
Product Name
N P Type Bismuth Telluride
Appearance
Dark Grey Pellets
Doping
P Type Doped Antimony/N Type Doped Selenium
Form
Bismuth Telluride Powder, Pellets, Rods, Ingots
Melting Point
586 Centigrade
Boiling Point
1130 Centigrade
Density at 25 °c
7.642 G.Cm3
Transport Package
Vacuum Packed in Polyester Bag
Specification
1.4x1.4x1.6mm(L*W*H) or Customized
Product Description
Semiconductors n p type bismuth telluride bi2te3 pellet bismuth telluride
1. 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.
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2. FeaturesSymbol: | 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 |
Regular Size: 1.4x1.4x1.6mm(L*W*H) Other size can be customized as per requests,MOQ is 1KG each |
3. Specifications
N-type Bismuth Telluride:
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
P-type Bismuth Telluride:
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
4. Applications
a.It is commonly used in physical vapor deposition processes, Thermal analysis test cup, Aluminum die-casting mould coating;
b. II-VI compound semiconductor materials, thermoelectric converting elements;
c. Refrigeration elements, piezo crystal and infrared detectors, test instruments, chemical vapor deposition.
5. Tellurium SeriesProduct Name | CAS NO | Purity | Specification |
High Purity Tellurium (Te) | 13494-80-9 | 5N-7N | Irregular lump 1-20cm |
Tellurium Powder (Te) | 13494-80-9 | 4N-5N | 100-325 mesh |
Tellurium Shot (Te) | 13494-80-9 | 4N-6N | 0.5-2.5mm |
Tellurium Dioxide (TeO2) | 7446-07-3;11099-09-5 | 4N-5N | white powder |
Bismuth Telluride (Bi2Te3) | 1304-82-1 | 4n | dark grey |
6. Packaging & Shipping
Generally, separately vacumm packed in polyester bottle, it 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 |
As for shipping, it takes 3 workdays if in stocks,If our of stocks,it usually takes 7 working days after order confirmation according to different quantity and requirement.
Shipping Way: By Air, By sea, By Courier such as FedEx, DHL, UPS, EMS Taiwan Express etc. All available upon requests.
7. FAQQ: Are you trading company or manufacturer? |
A: We are a factory with export license. |
Q: What's the purity of rare metal? |
A: Range from 99.99%-99.99999%. |
Q: What's the Mini order quantity? |
A: MOQ is 1KG. |
Q: How long is your delivery time? |
A: According to Quantity and requirement. Usually 3-7 days. |
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 a ustomer with good reputation, offer T/T 30 days or even T/T 60 days. |
8. Contact US
Flora Tu
Wuhan Xinrong New Materials Co., Ltd.
w: www.made-in-china.com/showroom/flora-tu
Address: 309, Block B, Science Park, 26 Shucheng Rd, Hongshan District, Wuhan, China.
Address:
309, Block Bshucheng Rd. Hongshan Science Park, Hongshan District, Wuhan, Hubei, China
Business Type:
Manufacturer/Factory
Business Range:
Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001
Company Introduction:
Wuhan Xinrong New Material Co., Ltd. is a technology company focusing on research, development and production of high-end high-purity metal materials. We have ten years of R&D and production experience. Our company′s customers are located in China, the United States, the United Kingdom, Australia, France, India, Japan, Korea, etc. 26 countries.
The company has a complete R & D, production, sales and service system, and is one of the largest companies in domestic high-end high-purity metal materials industry shipments. Wuhan Xinrong New Material Co., Ltd. has successfully entered the international mainstream supplier of high-end high-purity metal materials through continuous improvement of its comprehensive strength.