Category: Selenide Powder

About Zinc Selenide ZnSe Powder:
Zinc Selenide (Zinc Selenide) is an inorganic compound with the molecular formula ZnSe and a molecular weight of 144.35. It is a yellow cubic crystal system. Relative density 5.65, refractive index 2.89. Sublimation. The transmittance of infrared light with a wavelength less than 15 μm is more than 60%. See light quickly turns red, long time in the air or in the case of dilute nitric acid easy to decompose. Zinc selenide is insoluble in water but reacts with acids to form a toxic hydrogen selenide gas.
Zinc selenide (ZnSe) is composed of zinc (Zn) and selenium (Se). It is an intrinsic semiconductor with a bandgap of about 2.70eV at 25°C(77°F).ZnSe, which is rarely found in nature, is found in a mineral called Steele stone, named after Hans Steele.ZnSe has two crystal structures: hexagonal (wurtzite) and square (sphalerite).
ZnSe is a wideband gap semiconductor of the II-VI semiconductor family (because zinc and selenium belong to groups 12 and 16 of the periodic table, respectively).The material may be doped with n-type doping, for example, halogen elements. P-type doping is more difficult but can be achieved by introducing gallium
Zinc selenide is composed of selenium and zinc Ⅱ – Ⅵ compound semiconductor materials, heated to a certain temperature in the air will be oxidized to carbon dioxide selenium and zinc oxide, forbidden bandwidth is 2.6 eV. It is a compound semiconductor that can emit a range of visible light from yellow to blue materials. Feel free to send an inquiry to get the latest price if you would like to buy Zinc Selenide ZnSe Powder in bulk.

Properties of Zinc Selenide ZnSe Powder :

Zinc selenide has a chemical formula of ZnSe and a molecular weight of 144.33. It is a light yellow solid compound and insoluble in water. It is prepared by the reaction of zinc chloride, zinc sulfate, etc. with hydrogen selenide. Widely used in the fields of laser, medicine, astronomy and infrared night vision. The zinc selenide material is a yellow transparent polycrystalline material with a crystal particle size of about 70 μm and a light transmission range of 0.5-15 μm. The chemical vapor deposition (CVD) method basically has no impurity absorption, and the scattering loss is extremely low. Because of its small absorption of 10.6μm wavelength light, it has become the material of choice for the manufacture of optical devices in high-power CO2 laser systems. In addition, it is a material commonly used in different optical systems in its entire light transmission band.
 

How is Zinc Selenide ZnSe Powder produced?
Zinc selenide can be prepared by the reaction of H2Se with ZnSO4 solution, or by the reaction of ZnO, ZnS and Se mixed and heated to 800 ℃. Used as a catalyst for the organic synthesis of acetone from isopropanol. A compound containing Cd with a small amount Of Zn is Called a Phosphor.
1. Dilute solution of zinc sulfate buffered with ammonium acetate is added to the saturated solution of H2Se, and H2Se gas diluted with N2 or H2 is added to the solution (formed by the reaction of Al2Se3 and dilute hydrochloric acid) . The precipitated vessel is heated over a steam bath and the excess H2Se gas is absorbed in a wash bottle containing concentrated nitric acid. If the zinc salt solution is introduced too fast or the concentration is too high, the white precipitate will be formed, and it will take a long time to change to the yellow ZnSe.Yellow ZnSe precipitates are difficult to filter and need to be separated by centrifugation. The separated precipitate was washed first with boiled dilute ammonia and then with methanol. The cleaned ZnSe precipitates were first dried in a vacuum dryer containing CaCl2.Then, It was dried in a dryer containing P2O5 AT 120 ° C.
Zinc selenide is very sensitive to air when it is wet. Therefore, the dried product needs to be placed in the glass tube, heated at 600 ℃, H2 or H2Se atmosphere for 2 ~ 4h, to remove the oxidized product.
2. A mixture of 4g zinc oxide, 2.5g zinc sulfide and 6g selenium was placed in a quartz crucible in the lid and heated at 800℃ for 15 minutes to obtain the ZnSe product.

Applications of Zinc Selenide ZnSe Powder:
ZnSe is grown in melt under excess inert gas pressure (usually Ar). When there is no absorption and inclusions, it is very suitable for 10.6 μm wavelength CO2 laser optics. Therefore, ZnSe is a very important infrared material. It has a very wide transmission wavelength range (0.45 ~ 21.5 μm). The refractive index of 550 nm (green) and 2.40 refractive index was 10.6 μm (LWIR). In addition, ZnSe applications include:
1. ZnSe can be used as a fluorescent material and a semiconductor dopant;
2. ZnSe is widely used in laser, medicine, astronomy and infrared fields.
3. Znse is used to make infrared transmitted materials and infrared optical instruments
4. ZnSe is used to form an II-Vi LED and diode laser. It produces blue light.
Cr Doped ZnSe (ZnSe: Cr) is used as an infrared laser gain medium with an emission wavelength of about 2.4 μm.
5. Activated ZnSe (ZnSe (TE)) is a scintillator having 640 nm, which is suitable for matching the photodiode. It is used for X-rays and gamma-ray detectors. The ZnSe scintillator is obviously different from the ZnS scintillator.

Packing & Shipping of Zinc Selenide ZnSe Powder :
Zinc Selenide ZnSe Powder packing: vacuum packing, 1kg/bag, 25kg/barrel, or as your request.
Zinc Selenide ZnSe Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

About Antimony Selenide Sb2Se3 Powder:
Antimony triselenide is a compound with the chemical formula Sb2Se3. The substance exists in the form of the sulfide mineral antimony pyroxene and presents an orthotic space group. In this compound, the oxidation state of antimony form is +3, and that of selenium form is −2. The bonding of this compound has the properties of covalent bonds, which can be demonstrated by the blackness and the semiconductor properties of this and related materials with a low-frequency permittivity (ε0) of 133 along the C-axis at room temperature and an abnormally large bandgap of 1.18 eV at room temperature. Antimony triselenide can be formed by the reaction of antimony with selenium at a melting point of 885 K.
Antimony selenide (Sb2Se3) is a binary monophase compound with large raw material reserves, low toxicity and low price. At the same time, the bandgap is suitable (~ 1.15eV), and the light absorption coefficient is large (>;105 cm-1), the long crystal temperature is low, which is very suitable for the production of new low-cost and low toxicity thin-film solar cells, and the theoretical photoelectric conversion efficiency can reach more than 30%. Tqhp is a trusted global Antimony Selenide Sb2Se3 Powder supplier. Feel free to send an inquiry about the latest price of Antimony Selenide at any time.

Properties of Antimony Selenide Sb2Se3 Powder :
Antimony selenide is a chemical substance with the chemical formula Sb2Se3 and a molecular weight of 480.38.
99.99% antimony triselenide powder; Sb2Se3 antimony selenide powder
 

Technical Parameter of Antimony Selenide Sb2Se3 Powder :
 

 How is Antimony Selenide Sb2Se3 Powder Produced?
The invention discloses a method for preparing antimony selenide film, the method is:
(1) The antimony selenide film was prepared by RF magnetron sputtering process on the substrate of the film to be prepared: Ar gas was selected as the sputtering gas, antimony selenide ceramic target was used as the target material, the sputtering power density was set at 0.6~5W/cm2 and the sputtering pressure was set at 0.2~10Pa.
(2) Online selenium compensation is carried out during the preparation of antimony selenide thin film by sputtering. The online selenium compensation is that the solid selenium source is evaporated by the thermal evaporation process while sputtering. The selenium source is high purity selenium particles or selenium powder.
 
Applications of Antimony Selenide Sb2Se3 Powder:
Sb2Se3 is currently being actively explored for use in thin-film solar cells. It was reported that the conversion efficiency of light to electricity reached 9.2 percent.
Sb2se3 is mainly used in metallurgy, industry, chemical industry and other industries.
Sb2Se3 can be used in alloys as a compound or additive.
Sb2se3 can also be used as a catalyst for organic chemical reactions.

Storage Condition of Antimony Selenide Sb2Se3 Powder :
Antimony Selenide should be sealed in vacuum and stored in cool and dry room and it should not be exposure to air. In addition, the product should be avoided under stress.

Packing & Shipping of Antimony Selenide Sb2Se3 Powder :
Antimony Selenide packing: vacuum packing, 1kg/bag, 25kg/barrel, or as your request.
Antimony Selenide shipping: could be shipped out by sea , by air, by express as soon as possible once payment receipt.



 

About Cadmium Selenide CdSe Powder :
Cadmium selenide is an inorganic compound with the molecular formula CdSe.What is the name of CdSe? Cadmium selenide. It is a black to red-black solid and is classified as an N-type semiconductor II-VI.So far, research on the salt has focused on its nanoparticles. Cadmium selenide (CdSe) is a hexagonal modified tetrahedral semiconductor with a wurtzite structure.CdSe is a uniaxial optical semiconductor with two dielectric functions. The measurement of the reflectivity spectra of CdSe crystals under the action of polarized light shows that the electric vectors parallel to and perpendicular to the hexagonal axis are quite different.
Cadmium selenide is a solid binary compound of cadmium and selenium. It is an n-type semiconductor material that is transparent to infrared light. However, p-type doping of cadmium selenide occurs in the use of nitrogen. Wurtzite, sphalerite and rock salt are the three known forms of cadmium selenide crystals. Cadmium is a toxic heavy metal, and selenium can be toxic in large amounts. Cadmium selenide is therefore a known carcinogen in humans and requires medical attention if swallowed or if it comes into contact with the eyes and skin. Most of the current research work focuses on development control.
What is Cadmium Selenide structure? CdSe comes in three crystalline forms: hexagonal wurtzite (hexagonal), galena (cubic), and halite (cubic). The CdSe structure of sphalerite is unstable and converts to wurtzite after moderate heating. The transition starts at around 130 ° C and can be completed in a day at 700 ° C.Halite structures are only observed at high pressures. Tqhp is a trusted global Cadmium Selenide CdSe Powder supplier. Feel free to send an inquiry about the latest price of Cadmium Selenide at any time.

Features of  Cadmium Selenide CdSe Powder:
Cadmium selenide, with a molecular formula of CdSe and a molecular weight of 191.36. It is a beige or red powder.

Specification of Cadmium Selenide CdSe Powder:

How is Cadmium Selenide CdSe Powder produced?
Cadmium selenide (cadmium selenide synthesis) is produced in two different ways. Bulk crystalline CdSe was prepared by high-pressure vertical Bridgman method or high-pressure vertical zone melting method
CdSe can also be produced in the form of nanoparticles. There are several methods for preparing CdSe nanoparticles: retention precipitation in solution, synthesis of structural media, pyrolysis at high temperature, ultrasonochemistry, and radiolysis
Under controlled conditions, alkyl cadmium and tri octyl phosphine selenide (TOPSE) precursors were introduced into a heated solvent, and cadmium selenide was prepared by retention precipitation in a solution
ME2Cd + TOPSE →CdSe +(by-product)
High-temperature pyrolytic synthesis is usually carried out using aerosols containing volatile mixtures of cadmium and selenium precursors. The precursor aerosol is then brought into a furnace containing inert gases such as hydrogen, nitrogen or argon. The precursor reacts in the furnace to form CdSe and several by-products.
 
Applications of Cadmium Selenide CdSe Powder:
CdSe materials are transparent to infrared (IR) light and have limited applications in photoresistors and Windows of instruments that utilize infrared light. The material also has high luminescent properties.CdSe is a component of the pigment cadmium orange.
Cadmium selenide uses are also including:
Optoelectronic devices
Laser diode
Biomedical imaging
Nanosensing
High-efficiency solar cell
Thin-film transistor

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

About Gallium Selenide Ga2Se3 Powder:
Gallium(III) Selenide is a compound. It has a hexagonal layered structure, similar to a gas. It is a photoconductor, a second harmonic crystal in nonlinear optics, and is used as a far-infrared conversion material for terahertz and above.
Gallium(III) Selenide has a defective sphalerite (cubic ZnS) structure. It is a p-type semiconductor.Gallium(III) Selenide(III) can be formed by combining elements. It reacts slowly in water and rapidly in inorganic acids, forming toxic hydrogen selenide gas. The reducing power of selenium ions makes them susceptible to oxidizing agents. Therefore, it is advised not to contact the base.
As a nonlinear optical material and photoconductor, Gallium(III) Selenide crystals have great prospects for development. Nonlinear optical materials are used for the frequency conversion of lasers. Frequency conversion involves changing the wavelength of a monochromatic light source (usually a laser) to a higher or lower wavelength of light that cannot be produced by a conventional laser source.Tqhp is a trusted global Gallium Selenide Ga2Se3 Powder supplier. Feel free to send an inquiry about the latest price of Iron Gallium Selenide at any time.
There are several methods for frequency conversion using nonlinear optical materials. The generation of the second harmonic causes the frequency of the infrared carbon dioxide laser to double. In optical parameter generation, the wavelength of light is doubled. Near-infrared solid-state lasers are usually used for optical parameter generation
One of the original problems with using the Gallium(III) Selenide in optics is that it easily breaks along the cleavage lines and is therefore difficult to cut in practical applications. However, it has been found that the doping of indium in crystals greatly improves their structural strength, making them more practical for application. However, there are still some difficulties that must be overcome in crystal growth before Gallium(III) Selenide crystals may be used more widely in the field of optics. 

Properties of Gallium Selenide Ga2Se3 Powder:

Technical Parameter of Gallium Selenide Ga2Se3 Powder:

How is Gallium Selenide Ga2Se3 Powder produced?
Gallium(III) Selenide can be prepared by chemical vapor deposition.
 
Applications of Gallium Selenide Ga2Se3 Powder:
Gallium(III) Selenide(III) is a compound. It has a hexagonal layer structure, similar to a gas.Gallium(III) Selenide is a photoconductor, a second harmonic crystal in nonlinear optics, which has been used as a far-infrared conversion material for 14-31 terahertz and above.
In addition, Gallium(III) Selenide is used for semiconductor and optoelectronic applications.
Gallium(III) Selenide is also used as an intermediate in food, agriculture and pharmaceuticals.

Packing & Shipping of Antimony Selenide Sb2Se3 Powder :
Gallium Selenide Ga2Se3 Powder packing: vacuum packing, 1kg/bag, 25kg/barrel, or as your request.
Gallium Selenide Ga2Se3 Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

About Copper Selenide Cu2Se Powder:
Cuprous selenide, molecular formula Cu2Se, is a black cubic crystal at room temperature, relative density 6.749, melting point 1113℃, molecular formula Cu2Se. But it’s non-stoichiometric. It is a semiconductor and is often grown in the form of nanoparticles or other nanostructures. Cuprous selenide is dissolved in potassium cyanide solution. Hydrogen selenide escapes when dissolved in hydrochloric acid. In reaction with sulfuric acid, sulfur dioxide gas is produced. Can be oxidized to copper selenite by nitric acid. Tqhp is a trusted global Copper Selenide Cu2Se Powder supplier. Feel free to send an inquiry about the latest price of Copper Selenide at any time.

Features of  Copper Selenide Cu2Se Powder  :

Cuprous selenide is black cubic crystal at room temperature, with a relative density of 6.749, a melting point of 1113°C, and a molecular formula of Cu2Se. Soluble in potassium cyanide solution. Hydrogen selenide escapes when dissolved in hydrochloric acid. When interacting with sulfuric acid, sulfur dioxide gas occurs. It can be oxidized by nitric acid to copper selenite. It is obtained by heating a stoichiometric mixture of copper and selenium in a vacuum quartz sealed tube or by reducing an ammonia solution of copper salt and selenite by hydrazine hydrate. Used as a semiconductor.

Specification of Copper Selenide Cu2Se Powder  :
High purity cuprous selenide -05 purity 99.999% above, silver, aluminum, arsenic, gold, cadmium, chromium, copper, iron, magnesium, manganese, nickel, lead, tin, zinc impurity total content less than 10ppm;
Ultra-pure cuprous selenide -06 purity 99.9999% above, silver, aluminum, arsenic, gold, cadmium, chromium, copper, iron, magnesium, nickel, lead, zinc impurity total content less than 1ppm.

How is Copper Selenide Cu2Se Powder produced?
Cuprous selenide is prepared by heating a stoichiometric mixture of copper and selenium in a vacuum quartz sealed tube or by reducing a solution of copper salt and ammonia of selenite by hydrazine hydrate.
 
Applications of Copper Selenide Cu2Se Powder:
Cuprous selenide is used as a semiconductor. Cuprous sulfide is an in-situ production method that forms a black protective layer on steel parts during cold heading. A bluish solution acting in this way is usually labeled as containing selenic acid or selenium dioxide. It is also being studied for the treatment of colon cancer.

Packing & Shipping of Copper Selenide Cu2Se Powder  :
We have many different kinds of packing which depend on the Copper Selenide Cu2Se Powder quantity.
Copper Selenide Cu2Se Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Copper Selenide Cu2Se Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

About Indium Selenide In2Se3 Powder :
Indium Selenide is a class of III-VI compounds with different chemical compositions. Indium(III) selenide formula is In2Se3. It is a black crystal or soft, dark black scaly body with a melting point of 890 ±10℃. Dissolves and decomposes in concentrated acid.
Indium selenide properties: The most studied are Inse and In2Se3.In2Se3 mainly consists of α, β, γ, δ and κ crystal structures. In November 2016, researchers at the University of Manchester and the University of Nottingham synthesized ultra-thin nanoscale indium selenide, which is just a few atoms thick, and demonstrated superior semiconductor properties over silicon, making it an ideal material for future electronic chips to replace silicon.α-In2Se3 and γ-In2Se3 are stable at room temperature with band gaps of 1.2-1.3 eV and 1.9-2.3 eV, respectively. Tqhp is a trusted global Indium Selenide In2Se3 Powder supplier. Feel free to send an inquiry about the latest price of Indium Selenide at any time. 

Performance of Indium Selenide In2Se3 Powder:

Indium selenide is a Group III-VI compound with different chemical compositions, of which InSe and In2Se3 are the most studied. In2Se3 mainly includes five crystal structures of α, β, γ, δ and κ.In November 2016, researchers at the University of Manchester and the University of Nottingham synthesized nano-scale ultra-thin indium selenide with a thickness of only a few layers of atoms and demonstrated semiconductor performance superior to silicon, which is an ideal material for future replacement of silicon for electronic chips.

Technical Parameter of Indium Selenide In2Se3 Powder:

How is Indium Selenide In2Se3 Powder produced?
Indium selenide (In2Se3) exists in four crystal structures (α, β, δ, γ). The metal α phase of indium selenide changes into an intrinsically conducting β phase at temperature change.In2Se3 can be prepared by stoichiometric combination at temperatures from 1000 to 1100oC.
 
Applications of Indium Selenide In2Se3 Powder:
Levels compared with single-crystal graphene and cm single crystal TMDCs material, the single crystal size of the main group metal compounds between remains, dozens of micrometers (such as In2Se3, InSe, GaSe, etc.), such as semiconductor material due to its special optical and electrical properties, is expected to be widely used in microelectronics, optics, chemical, biological sensors and other fields.In2Se3 is an N-type semiconductor compound, which can be used in the photoelectric conversion, photocatalysis, electronic devices and other fields. 

Storage Condition of  Indium Selenide In2Se3 Powder:

We have many different kinds of packing which depend on the Indium Selenide In2Se3 Powder quantity.
Indium Selenide In2Se3 Powder  packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Indium Selenide In2Se3 Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

About Calcium Nitride Ca3N2 powder
In most cases, calcium nitride is usually available in large volumes. Tqhp provides a wide range of products for hydrogen storage research, advanced fuel cells, and battery applications. Hydrogen is easily produced from renewable energy sources and is the most abundant element in the universe. Hydrogen comes from many sources, such as solid fuels, water, and renewable materials. Hydrogen is non-polluting and will form harmless water during use. Challenges related to the use of hydrogen as an energy source include the development of safe, compact, reliable, and cost-effective hydrogen storage and transmission technology. Currently, hydrogen can be stored in three forms: compressed hydrogen, liquid hydrogen, and chemical storage. High purity, submicron and Nanopowder forms can be considered. Calcium nitride is the main raw material for high-end phosphors. This phosphor is more stable, has better performance, and has better effects at high temperature and high humidity. Last but not least, calcium nitride can also be used as a chemical treatment agent, which is the key to determining the performance of water-based mud. Feel free to send an inquiry to get the latest price if you would like to buy Calcium nitride in bulk.
How is Calcium Nitride Produced?
When calcium burns in the air, it forms Ca3N2 with the oxide CaO. The distilled fibrous metallic calcium is heated to 450°C in a purified nitrogen stream, and then the metallic calcium is nitrided into calcium nitride after 3-4 hours.
Depending on the preparation temperature, the obtained calcium nitride is black at 350°C, milky white at 350 to 1150°C, or golden yellow at 1150°C or higher. It is easy to identify the calcium nitride formed because it can react with moisture or water and produce calcium hydroxide and ammonia.
Applications of Calcium Nitride
Ca3N2 can be used for obtaining reactive nitride ions, Calcium hydride (a desiccant) can be produced by heating calcium nitride with hydrogen at temperatures above 350 °C.
Product Performance of Calcium Nitride Ca3N2 powder:
Calcium Nitride Ca3N2 powder possesses the characteristics of high purity and uniform particle size distribution. 
Calcium nitride hydrolyzes to give calcium hydroxide and release ammonia, it dissolves in dilute acids and decomposes in alcohol.
Technical Parameter of Calcium Nitride Ca3N2 powder:

Chemical Composition of Calcium Nitride Ca3N2 powder:

Application of Calcium Nitride Ca3N2 powder:
Calcium nitride Ca3N2powder is the main raw materials of chemical reagents and high-end fluorescent powder.

Packing & Shipping of Calcium Nitride Ca3N2 powder :
We have many different kinds of packing which depend on the calcium nitride Ca3N2 powder quantity.
Calcium nitride Ca3N2 powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Calcium nitride Ca3N2 powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.