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Tellurium(IV) Chloride (Cl4Te, Purity: 99.9%, APS: 60-70µm)

Tellurium(IV) Chloride Powder

Tellurium(IV) Chloride
Product No NRE-11239
CAS No. 10026-07-0
Formula Cl4Te
Molecular Weight  269.4g/mol
APS <70µm (can be customized)
Purity 99.9%
Density 3.2g/cm3
Color White/Off-White
Melting Point 224°C
Boiling Point 380°C

Tellurium(IV) Chloride

Applications

Synthesis of Tellurium Compounds:

Precursor for Tellurium Dioxide (TeO₂): TeCl₄ is commonly used as a precursor for the synthesis of tellurium dioxide (TeO₂), which is used in various optical and electronic applications. This can be achieved by reacting TeCl₄ with water, which hydrolyzes it to form TeO₂ and hydrochloric acid.

Formation of Telluride Materials: TeCl₄ is also a key precursor for the production of telluride compounds, such as metal tellurides, which are used in semiconductor technology.

Semiconductor Industry:

Material for Semiconductor Fabrication: TeCl₄ is used in the production of tellurium-based semiconductors. It is especially relevant for creating composite materials or alloys for devices like thermoelectric generators, infrared detectors, and photovoltaic cells.

Thin Film Deposition: In CVD (Chemical Vapor Deposition) processes, TeCl₄ is used to deposit tellurium films onto semiconductor substrates. This is crucial for fabricating thin-film solar cells and other optoelectronic devices where tellurium is needed for high-efficiency performance.

Thermoelectric Materials:

Thermoelectric Generators: Tellurium is a key element in the production of thermoelectric materials. TeCl₄ is used to produce high-purity tellurium, which is then processed into tellurium alloys for thermoelectric generators. These generators convert heat into electricity, often used in spacecraft or remote power sources.

Alloys for Thermoelectric Applications: Tellurium-based alloys, including those formed from TeCl₄, are also used in thermoelectric cooling devices, which provide efficient cooling by converting electrical energy into thermal gradients.

Optical Applications:

Optical Coatings and Glass: TeCl₄ is used in the preparation of tellurite glass and optical coatings. Tellurite glasses, which contain tellurium oxides, are important in the fiber optic and laser industries due to their unique optical properties, such as high refractive index and transparency in the infrared spectrum. TeCl₄ serves as a precursor to these tellurite glasses.

Infrared Optics: The compounds derived from TeCl₄ are used in making infrared optics due to their ability to transmit light in the infrared region of the electromagnetic spectrum. This is particularly useful in night vision equipment, thermal cameras, and scientific instrumentation.

 

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