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Telluride Powder

Germanium Telluride GeTe Powder CAS 12025-39-7

About Germanium Telluride GeTe Powder:
Germanium telluride(GeTe) is a compound of germanium and tellurium, which is a component of chalcogenide glass. It has semimetallic conductivity and ferroelectric properties. There are three main types of germanium telluride crystal: α(rhomboid) and γ(orthogonal) at room temperature and β(cubic, halite) at high temperature. At the ferroelectric Curie temperature of about 670 K, the main phase of pure GeTe is the α phase. Doped germanium telluride is a low-temperature superconductor.

The germanium telluride crystal is a periodic table WTH group element compound semiconductor. Ionic crystals.Trigonometric system face center structure, b. 19G1} lining.Melting point 724 C'.It is a direct bandgap semiconductor with a room temperature forbidden bandwidth of 0.23eV. It is a narrow bandgap semiconductor with a hole mobility of 7x10-3mZilv "S)} degree prepared by melting and recombination method. Used as infrared light emission and detection materials. RBOSCHCO is a trusted global Germanium Telluride GeTe Powder supplier. Feel free to send an inquiry about the latest price of Germanium Telluride at any time.

Product Performance of Germanium Telluride GeTe Powder :

Germanium telluride is a chemical with the chemical formula GeTe. It is quite stable in air, insoluble in dilute acid and potassium cyanide solutions other than water and nitric acid.


Technical Parameter of Germanium Telluride GeTe Powder :

Product NameMFPurityParticle SizeMolecular WeightDensityColor
Germanium TellurideGeTe99.99%-100 mesh200.246.14 g/cm3Gray Black

 

How is Germanium Telluride GeTe Powder Produced?
The preparation method of germanium telluride consists of the following steps:
(1) Weigh a certain amount of germanium telluride powder into the organic solvent and mix it evenly. The ratio of the mass fraction of germanium telluride powder to the volume fraction of the organic solvent is (2100):(5100). The unit of the mass fraction is Mg and the unit of volume fraction is mL.

(2) Put the evenly mixed solution in Step (1) into the cell crusher for ultrasonic treatment;

(3) The ultrasonic germanium telluride dispersion was centrifuged, and the grayish-black supernatant was taken. The two-dimensional material germanium telluride was dispersed in the supernatant.
 
Applications of Germanium Telluride GeTe Powder:
Germanium telluride is a thermoelectric material.
Germanium telluride is used in thermoelectric refrigeration.
Germanium telluride is also used in infrared detection equipment and semiconductors.
GeTe is already widely used in non-volatile optical data storage, such as CD, DVD and Blu-ray, and may replace dynamic and flash random access memory. In 1987, Yamada et al. studied the phase transformation properties of GeTe and Sb2Te3 used in optical storage. The shorter crystallization time, circularity and high optical contrast make these materials a better choice than Te81Ge15Sb2S2, which has a slower transition time

The high resistivity contrast between amorphous and crystalline states and the ability to repeatedly reverse transitions make it a good candidate for RF switches. The radiofrequency requires the deposition of a thin layer of GeTe film on the surface of the substrate. Seed layer structure, precursor composition, deposition temperature, pressure, gas flow rate, precursor bubbling temperature and substrate all have an influence on membrane performance.

Storage Condition of Germanium Telluride GeTe Powder :
The damp reunion will affect GeTe powder dispersion performance and using effects, therefore, germanium telluride GeTe powder should be sealed in vacuum packing and stored in the cool and dry room, the germanium telluride can not be exposure to air. In addition, the GeTe powder should be avoided under stress.

Packing & Shipping of Germanium Telluride GeTe Powder :
We have many different kinds of packing which depend on the germanium telluride GeTe powder quantity.
Germanium telluride GeTe powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Germanium telluride GeTe powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.





 

Germanium Telluride Properties

Other Namesgermanium monotelluride, germanium(II) telluride,
germanium(2+) telluride, GeTe powder
CAS No.12025-39-7
Compound FormulaGeTe
Molecular Weight200.23
AppearanceGray Black Powder
Melting Point725℃
Boiling PointN/A
Density6.14 g/cm3
Solubility in H2ON/A
Exact Mass203.827 g/mol
  
  

Germanium Telluride Health & Safety Information

Signal WordN/A
Hazard StatementsH302
Hazard CodesXn
Risk CodesR22
Safety StatementsN/A
Transport InformationNONH for all modes of transport
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Telluride Powder

Silver Telluride Ag2Te Powder CAS 12002-99-2

About Silver Telluride Ag2Te Powder:
The chemical formula of silver telluride Ag2Te.Molecular weight 343.34.Grey cubic crystal or powder.Melting point 955℃, relative density 8.5.Soluble in nitric acid, ammonia and potassium cyanide solution, insoluble in water.

Silver telluride is a telluride compound of silver, also known as silver disilver telluride or silver telluride (I). It forms a monoclinic crystal. Broadly, silver telluride may be used to denote AgTe(silver (II) telluride, a metastable compound) or Ag5Te3. Silver telluride (I) occurs naturally as hard manganese ore, while (II) silver telluride is known as queen ore. Silver telluride is a semiconductor that can be doped with N-type and P-type. Stoichiometric Ag2Te has N-type conductivity. When heated, silver is lost from the material. Non-stoichiometric silver telluride exhibits remarkable magnetoresistance.

Silver telluride is fairly stable in air and insoluble in water, dilute acids other than nitric acid, and potassium cyanide solutions; When it is heated to 300 ~ 600℃, some of it decomposes to produce "wool silver". Orachemicals is a trusted global Silver Telluride Ag2Te Powder supplier. Feel free to send an inquiry about the latest price of Silver Telluride at any time.

Product Performance of Silver Telluride Ag2Te Powder :

Silver telluride is a chemical with the chemical formula Ag2Te. It is quite stable in air, insoluble in dilute acid and potassium cyanide solutions other than water and nitric acid.


Technical Parameter of Silver Telluride Ag2Te Powder :

Product NameMFPurityParticle SizeMolecular WeightDensityColor
Silver TellurideAg2Te99.99%-100 mesh343.348.5 g/cm3Gray Black

 

How is Silver Telluride Ag2Te Powder Produced?
Silver telluride process: Produced by the interaction of silver with tellurium at high temperatures (to volatilize excess tellurium) and in a flow of hydrogen gas.

Silver telluride is obtained by heating silver and tellurium together in a vacuum container until reddish. Or from the reaction of tellurium with a hot solution of silver nitrate. In addition, the H₂ TE and soluble silver salt solution reaction can also make silver telluride.
 
Applications of Silver Telluride Ag2Te Powder:
The utility model relates to a vertical-cavity surface-emitting laser containing silver telluride/silver zinc telluride core-shell quantum dots and a preparation method thereof. The vertical cavity surface emitting laser comprises a quartz substrate arranged upward in sequence, a lower high mirror, a silica layer containing silver telluride/silver zinc telluride core-shell quantum dots and an upper high mirror.

Single crystal Ag2Te nanowires with uniform dispersion were synthesized. A series of X-ray diffraction (XRD) and scanning electron microscopy (SEM) characterization showed that the Ag2Te sample has a controllable morphology, good crystallinity and high purity nanostructure, the diameter of which is about 200nm, the length of which can reach tens of microns. More importantly, the associated electrical properties of a single Ag2Te nanowire. It is found that the I-V curves of the samples are symmetric and non-linear at room temperature by in-situ electric field assembly and voltammetry measurement. During the heating process, the I-T curve is accompanied by the phase transition, and the current also changes greatly. These experimental results lay a good foundation for further research on the electrical transport performance of nanostructured devices in the future.

Storage Condition of Silver Telluride Ag2Te Powder :
The damp reunion will affect Ag2Te powder dispersion performance and using effects, therefore, silver telluride Ag2Te powder should be sealed in vacuum packing and stored in cool and dry room, the silver telluride can not be exposure to air. In addition, the Ag2Te powder should be avoided under stress.

Packing & Shipping of Silver Telluride Ag2Te Powder :
We have many different kinds of packing which depend on the silver telluride Ag2Te powder quantity.
Silver telluride Ag2Te powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Silver telluride Ag2Te powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.





 

Silver Telluride Properties

Other Namessilver(I) telluride, silver(1+) telluride, disilver telluride,
Ag2Te powder
CAS No.12002-99-2
Compound FormulaAg2Te
Molecular Weight343.34
AppearanceBlack Powder
Melting Point955℃
Boiling PointN/A
Density8.5 g/cm3
Solubility in H2ON/A
Exact Mass345.716072
  
  

Silver Telluride Health & Safety Information

Signal WordN/A
Hazard StatementsN/A
Hazard CodesN/A
Risk CodesN/A
Safety StatementsN/A
Transport InformationNONH for all modes of transport
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Telluride Powder

Zinc Telluride Powder ZnTe Cas 1315-11-3

About Zinc Telluride ZnTe Powder:
Zinc Telluride is a Group II-VI compound with the chemical formula ZnTe. In a hydrogen atmosphere, tellurium and zinc are heated together and then sublimated to produce reddish-brown zinc telluride. Because zinc telluride has a wide bandgap, it is often used to make semiconductor materials. Zinc Telluride is a semiconductor material with a direct bandgap of 2.26 eV. Usually a p-type semiconductor.
Zinc telluride usually has a cubic (galena or "zinc blende") crystal structure, but it can also be prepared as rock salt crystals or hexagonal crystals (wurtzite structure). Under aerobic conditions, it will burn when irradiated by a strong beam. After refined by sublimation, the appearance of ZnTe is a gray or brownish-red powder or ruby red crystals. ZnTe has a lattice constant of 0.6101 nm and can be grown with or on aluminum antimonide, gallium antimonide, indium arsenide, and lead selenide. Due to certain lattice mismatches, ZnTe can also be grown on other substrates (such as GaAs) and can be grown on substrates such as glass in the form of thin-film polycrystalline (or nanocrystalline) on substrates such as glass. Thin-film solar cells. In the wurtzite (hexagonal) crystal structure, its lattice parameters a = 0.427 and c = 0.699 nm.
Zinc telluride properties
The reaction of zinc telluride with dilute acid will release highly toxic hydrogen telluride (H2Te)
ZnTe+2H+=H2Te↑+Zn2+
Physical properties of zinc telluride
Zinc Telluride is a p-type wide bandgap semiconductor with a bandgap of 2.26eV at room temperature and 2.38eV at 77K. Feel free to send an inquiry to get the latest price if you would like to buy Zinc Telluride ZnTe Powder in bulk.

Performance of Zinc telluride ZnTe powder:
Zinc Telluride is a gray or brown-red powder, a compound of zinc and tellurium, and its chemical formula is ZnTe. Ruby red cubic crystals can be obtained by sublimation. It is stable in dry air, and decomposes in the presence of water, releasing malodorous and toxic hydrogen telluride gas. Zinc telluride is mainly used in semiconductors and infrared materials. It can be used as fluorescent materials and phosphorescent materials. It can also be used to make light-emitting diodes, as infrared detection and radiation detection materials.


Specification of Zinc telluride ZnTe powder:

Item

Formula 

weight

Color

Melting 

point

Density

Refractive 

index 

Particle size

Purity

Tr-ZnTe

192.99

Brownish-red powder

1240°C

6.34 g/mL at 25 °C

3.56

100mesh

99.99%-

99.9999%

Note: according to user requirements can provide different size products.
 

How is Zinc Telluride ZnTe Powder produced?
Method 1: Seal the polycrystalline zinc telluride in a quartz ampoule with a tapered end. The Bridgman method can be used to slowly grow a single crystal of zinc telluride from the melt, in order to prevent the zinc telluride melt from sticking to the quartz container wall, Quartz ampoules must be sandblasted in advance and coated with a very thin carbon film made by pyrolysis of acetone or ethanol.
Method 2: Sodium telluride (Na2Te) and zinc acetate react in water to form a yellow-brown hydrated ZnTe precipitate.

Application of Zinc Telluride ZnTe Powder:
Zinc Telluride is a binary compound with the chemical formula ZnTe. It has the appearance of ruby-red crystals or gray or brownish-red powder. Its crystal structure is cubic, just like diamond and sphalerite. It can also be prepared as a hexagonal crystal. It is one of the common semiconductor materials.
The main use of zinc telluride is similar to that of zinc selenide. It can be used as a semiconductor and infrared material and has properties such as light guide and fluorescence.
Zinc telluride crystal has a good electro-optic effect under the action of near-infrared (~800 nm) ultrashort pulses and a mature preparation process. It is a commonly used optical rectification THz radiation source and detection material. It is used in green light-emitting devices, solar cells, waveguides and There are also applications in optoelectronic devices such as modulators.
Zinc telluride can find applications in the following areas:
LED and laser diode
Solar battery
Terahertz imaging
Electro-optical detector
Holographic interferometer
Laser optical phase conjugation device.

Packing & Shipping of Zinc telluride ZnTe powder:
We have many different kinds of packing which depend on the Zinc telluride ZnTe powder quantity.
Zinc telluride ZnTe powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Zinc telluride ZnTe powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Zinc Telluride Properties

Other Namestelluroxozinc, tellaylidenezinc, zinc-tellurium, ZnTe powder
CAS No.1315-11-3
Compound FormulaZnTe
Molecular Weight192.99
AppearanceRed Brown Powder
Melting Point1238 ℃
Boiling PointN/A
Density6.34 g/cm3
Solubility in H2ON/A
Exact Mass193.835 g/mol
  
  

Zinc Telluride Health & Safety Information

Signal WordDanger
Hazard StatementsH330
Hazard CodesT
Risk CodesN/A
Safety Statements25
Transport InformationUN 3284 6.1/PG 2
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Telluride Powder

Antimony Telluride Powder Sb2Te3 Cas 1327-50-0

About Antimony Telluride Sb2Te3 powder:
Antimony telluride chemical formula Sb2TE3.Molecular weight 626.30.Gray solid.Melting point 639℃, relative density 6.5018. Dissolve in nitric acid. Antimony telluride is a covalent bond, ionic bond, has a certain van der Waals bond composition, triangular crystal system, the original cell is rhombus hexahedron.
Like other alveolar sulfide layered materials antimony, telluride is a gray crystalline solid with a layered structure. The layer consists of two atomic antimony and three atomic protein sheets and is held by weak van der Waals forces.Sb2Te3 is a narrow-gap semiconductor with a bandgap of 0.21eV. It is also a topological insulator and thus exhibits thickness-dependent physical properties.
Sb2Te3 has a rhomboid crystal structure. The crystalline material consists of covalently bonded atoms to form five atom-thick sheets (in order: Te-Sb-Te-Te), holding the plates together with the Van der Waals attraction. Due to its lamellar structure and weak interlamellar forces, the bulk telluride can be mechanically stripped to separate the monolayers. Antimony and bismuth, like other binary choline, have been studied as semiconductor properties of Sb2Te3. By doing it with appropriate dopants, it can be converted to N-type and P-type semiconductors. Feel free to send an inquiry to get the latest price if you would like to buy Antimony Telluride Sb2Te3 powder in bulk.

Features of Antimony Telluride Sb2Te3 powder:

Antimony telluride is an inorganic compound, the chemical formula is Sb2Te3. It is a gray crystal, but the melting point, density and color may depend on the crystal type used.Gray solid, Melting Point: 629℃, Density: 6.5 g/mL at 25 centigrade(lit.)  
 

Specification of Antimony Telluride Sb2Te3 powder:

 

Item

Purity

APS

Color

shape

energy gap

Melting Point

electrical resistivity

Thermoelectric quality department

Tr-Sb2Te3

99.99%-99.9999%

100mesh

Gray crystal

powder,granule,block

0.23eV

620℃

3×10-6Ω·

0.9×10-3/K

Note: according to user requirements can provide different size products.

Technical Parameter of Antimony Telluride Sb2Te3 powder:

                        Certificate of Antimony Telluride (%)  
PurityCuAgMgNiBiInFeCd
99.99≤5 ppm≤2 ppm≤5 ppm≤5 ppm≤5 ppm≤5 ppm≤5 ppm≤10 ppm


How is Antimony Telluride Sb2Te3 powder produced?
Telluride antimony preparation is as follows: using SbCl3 and K2TeO3 as starting materials, according to the stoichiometric ratio of n (SbCl3): n (K2TeO3) = 2:3 said take 0.002 mol SbCl3 and 0.003 mol K2TeO3, 250 ml and join the two round bottom flask, and then add in the 0.5 g polyvinylpyrrolidone, 80 ml 0.5 gNaOH and a reduction of diethylene glycol (take) by the measuring cylinder, put two round bottom flask temperature control heating jacket, set the temperature of 240 ° C, insulation 4 h, adjusting the rotational speed of 500 r/min.After the temperature of the reactants dropped to room temperature, the centrifuge was centrifuged 3 times with isopropyl alcohol and acetone, respectively. The centrifuge speed was set at 4000r/min, and the time was 4min. At the end of centrifugation, the upper liquid became colorless. The temperature of the reactant is reduced to 100 ml of centrifuge tube at room temperature, and the centrifugal is centrifuged with isopropanol and acetone. Black precipitate was taken out in an oven for 6 h and finally gave a black Sb2Te3 powder.
 
Application of Antimony Telluride Sb2Te3 powder:
Like other antimony and bismuth binary chalcogenides, the semiconducting properties of Sb2Te3 have been investigated. It can be converted to N-type and P-type semiconductors by doping appropriate dopants.
Compared with the single-frequency detection of pure Sb2Te3, iron-doped Sb2Te3 introduces multiple Fermi pockets, resulting in lower carrier density and mobility.
Sb2Te3 and germanium telluride (GeTE) form a pseudo-binary intermetallic germanium antimony telluride system.
Antimony telluride, like bismuth telluride and Bi2Te3, is used in solid-state refrigerators because of its strong thermoelectric effect.

Storage Condition of Antimony Telluride Sb2Te3 powder:

Keep the reservoir sealed and stored in a cool and dry place, Make sure that the workshop has good ventilation or exhaust devices.

Packing & Shipping of Antimony Telluride Sb2Te3 powder:
We have many different kinds of packing which depend on the Antimony Telluride Sb2Te3 powder quantity.
Antimony Telluride Sb2Te3 powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Antimony Telluride Sb2Te3 powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.


 

Antimony Telluride Powder Properties

Other NamesAntimony(III) Diantimony tritelluride, Antimony(3+) telluride, Antimony
sesquitelluride
CAS No.1327-50-0
Compound FormulaSb2Te3
Molecular Weight626.32
AppearanceGrey Solid
Melting Point580 °C (1076 °F)
Solubility in waterN/A
Density6.5 g/cm3
Purity99.99%
Particle Size-80mesh, -100mesh
Boling pointN/A
Specific HeatN/A
Thermal ConductivityN/A
Thermal ExpansionN/A
Young's ModulusN/A
Exact Mass250.810043
Monoisotopic MassN/A
  
  

Antimony Telluride Powder Health & Safety Information

Safety WarningWarning
Hazard StatementsH302-H332-H411
Flashing pointN/A
Hazard CodesN/A
Risk CodesN/A
Safety StatementsN/A
RTECS NumberN/A
Transport InformationN/A
WGK Germany3
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