Share on (1600675683149):
Characteristics: | Bismuth telluride is a compound of tellurium and bismuth. It is a narrow gap layered semiconductor with a trigonal unit cell. It mainly occurs in a rare mineral tellurobismuthite.It's produced by sealing bismuth and tellurium metals in a quartz tube under vacuum. When alloyed with selenium or antimony, it acts as an efficient thermoelectric material suitable for portable power generation or refrigeration. |
Production Processes: | Vacuum melting - crystallization (crystal orientation growth) - regional melting - removal of both ends. |
Applications: | Forming P/N section for semiconductor refrigeration, thermoelectric power generation, etc. |
Product Name: | Thermoelectric modules bismuth telluride cube pellets p n type bismuth telluride bi2te3 granules |
Place of Origin: | Hubei,China |
Brand Name: | Tuocai |
Raw Material: | bismuth, tellurium, selenium, antimony |
Appearance: | dark grey pellets |
Chemical Composition: | 99.99% 4n |
Molecular Formula: | Bi2Te3, Bite |
CAS No.: | 1304-82-1 |
Density: | N-type:7.88g/cm3 P-type:6.76g/cm3 |
Melting Point: | 586℃ |
Surface: | With Nickel & Tin & Gold Plated |
Doping: | P type bismuth telluride doped Antimony N type bismuth telluride doped Selenium |
Seebeck (S): | 210-230 (alpha, μ V / k) at 300K |
Electrical Conductivity: | 950-1050 (alpha, μ V / k) at 300K |
Bi2Te3 Products: | Bi2Te3 powder, pellets, rod&ingot, wafer |
Product Model: | N-type semiconductors |
Production Process: | Zone melting crystal pulling |
Purity: | 99.99% |
Size: | 1.4x1.4x1.6mm(L*W*H) (Other size can be customised on request) |
Surface Treatment: | Nickel & Tin (Gold, Nickel-Phosphorus can be coated on request) |
Seebeck Coefficient: | 205-210 (α, μ V / k) at 300K |
Electrical Resistivity: | 1.0 (ρ u Ω. Cm) at 300K |
Electrical Conductivity: | 950-1050 (α, μ V / k) at 300K |
Product Model: | P-type semiconductors |
Production Process: | Powder metallurgy |
Purity: | 99.99% |
Size: | 1.4x1.4x1.6mm(L*W*H) (Other size can be customised on request) |
Surface Treatment: | Nickel & Tin(Gold, Nickel-Phosphorus can be coated on request) |
Seebeck Coefficient: | 205-210 (α, μ V / k) at 300K |
Electrical Resistivity: | 1.0 (ρ u Ω. Cm) at 300K |
Electrical Conductivity: | 950-1050 (σ, S / cm) at 300K |
Bismuth Telluride Powder: | general particle size is 120 mesh,200/325/500/1250mesh are also available. |
Bismuth Telluride Pellet: | gerneral size is 1.4x1.4x1.6mm(L*W*H),other size can be customised on request. |
Bismuth Telluride Rod & Ingot: | general size of n type round rod is 28mm diameter x 150-220mm height general size of p type square ingot is 30mm length x 30mm width x 100mm height. |
Bismuth Telluride Wafer: | no common size,size is produced according to the requirements. |



Product Name: | Thermoelectric modules bismuth telluride cube pellets p n type bismuth telluride bi2te3 granules. |
Package: | N-type and P-type pellets are separately packed in vacuum storage bag or as per your requests. |
Shipping Method: | By Air, Sea, Couriers like FedEx, UPS etc. |
Delivery Time: | If in stock,we will dispatch the materials in 3 workdays. If out of stock,we will need about 2-4week to customize the products depends on the needs. |
Competitive Price: | We are factory direct and have the economy of scale. |
Clean Environment: | Production is conducted in a million level dust-free purification workshop. |
Professional Team: | More than 10 years of R&D and production experience, 20+ patents and 10+ professors' R&D papers. |
Powerful Technical Support: | Powerful Technical support from Institute of Semiconductors,Chinese Academy of Sciences, Huazhong University of Sicence and Technology, and Wuhan University of Technology. |
Prompt Shipment: | Primary materials such as Tellurium, Bismuth, Selenium, Antimony, Indium, Germanium, Gallium, Cadmium have sufficient inventory. |
24-Hour Service: | 24 hours Pre-sales and after-sales are ready to answer any questions by Calling or Email. Hot line: +86-15002785780 E-mail: info@91material.com |







New products from manufacturers at wholesale prices