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Quick Details

  • Place of Origin: Hunan, China (Mainland)
  • Brand Name: SANTECH
  • Model Number: PbTe 4N
  • Application: thermoelectric refrigeration, and can be used as an infrared detector
  • Shape: Rod, slice, target, bar, lump, powder, ingot
  • Material: Bi Te
  • Dimensions: 4N/5N
  • Chemical Composition: Bi2Te3
  • Figure: Rod, bar, lump, powder, ingot
  • Purity: 99.99%, 99.999%
  • Type: N type/ P type
  • Telluride: PbTe, ZnTe, CdTe,
  • Coverage of application: thermoelectric refrigeration,infrared detector material,semiconducting
  • Chemical Data: narrow gap semiconductor,a thermoelectric material
  • Chloride: TeCl4, GaCl3, CdSe
  • Main Market: Turkey, Korea, German, China
  • Packing Material: Paper,Board,plastic PE zip bag,Polyethylene,safe Polypropylene bottles
  • Alloys: welding price,refrigeration,automobile industry

Packaging & Delivery

Packaging Details N.W 1kilo per bottle, nitrogen-protecting, or as required.

99.99% P type Bismuth Telluride powder supplier, Round N type Bi2Te3 target, 4N TeCl4 tellurium chloride tellurium tetrachloride

Product Description


Bismuth Telluride is a narrow gap layered semiconductor with a trigonal unit cell.It is a

semiconductor which, when alloyed with antimony or selenium is an efficient thermoe

-lectric material for refrigeration or power generation. Santech Materials can produce

Bismuth Telluride doped P and N type in powder, rod form, also we can slice into cubic

granule or required size.




CAS No. 


Mol. Wt.800.761

Density at 25 °C(lit.)

7.642 g·cm−3
Melting point586°C
Electrical conductivity1050/950
Thermal conductivity1.35/1.3
Seebeck coefficient220/280
Test temp.300K



Bi2Te3 used as Thermoelectric materials 

Bismuth telluride crystals bear a remarkable quality. If, being prepared in a certain way semiconductor Bi2Te3

crystals (they are also called «pellets») of the n- and p-types of conductivity are alternatively joined sequentially

with each other by metal conductors, and this «package» is placed between two thermally conductive ceramic

plates, then you get a device which is called the thermoelectric cooling module (TCM). When transmitting the

direct electric current through the thermoelectric module the upper junctions of the «pellets» will become cool,

while the lower – get warmer. As a result one ceramic plate is cooling the environment, while the opposite plate

is the source of heating. But if the direct current is transmitted through the same device in the opposite direction,

then the «hot» and «cold» sides shall change places.


Related Products

Bi2Te399.99%, 99.999%powder, slice, rod, target
PbTe 99.99%, 99.999% powder, target, slice
CdTe 99.99%, 99.999% powder, target, slice
ZnTe 99.99%, 99.999% powder, target, slice
CdSe 99.99%, 99.999% powder, target, slice
PbS 99.99%, 99.999% Powder


Picture Details   



Shipping by Air/Sea packing                                                                        

Company Information


We specialize in producing rare metals and specialty materials for many years, the main products

including: metal products (Bi,Te,In,Ga,Ge,Se,Ir), telluride compounds, sulfide,nitrate and chloride

products. With updated precision production equipments and skilled staff, we supplied high quality

metals and chemicals to customer like you over 20 countries and regions.


Technical process and Inspection



R&D Centre



Packaging & Shipping


Step 1 Product Show

Step 2 Al foil vacuum bottle

Step 3 Bubble wrap

Step 4 Seal packing




Our Services

Quality Guarantee: If any quality problems, free replacement will be adopted.

Technical Support: 24 hours technical support by e-mail or calling

FAQ Email Help: 2 hours in workday, 12 hours in the weekend





If you have any other question please contact us for prompt response.


Changsha Santech Materials Co.,Ltd.
No. 909-910,9/f Xiaoxiang International Bldg,
158 Wuyi Avenue,Changsha



Tel: +86 (0)731 8972 3191         Fax: +86 (0)731 8972 3336
WhataApp: +86 155 7319 6247   WeChat: Leo_4222

Skype: Leo.lubin

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China (Mainland) | Trading Company
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Supplier's Trade Assurance Limit: US $43,000
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