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What are the characteristics of selenide?

admin / 2023-08-15 / no Comments

Selenide properties Selenides are compounds that contain selenium ions. Se2- is similar to sulfides in that it can only exist when strong alkaline solution exists. In neutral solution, it becomes HSe, and in acidic solution, H2Se. Some selenides easily react with air oxygen, while metal selenides dissolve more easily than sulfides. Metal selenide in active form is more prone to oxidation. Aluminum selenide can oxidize in moist atmosphere and dissolve rapidly, releasing highly poisonous dissolve selenide gases.

Selenide minerals: types and forms
Selenide minerals co-exist in most cases with sulfide mineral. Selenide minerals include white and red selenite. Polyselenide, a compound that contains the Sen2- anion, is called polyselenide. These compounds can be made by eutecticizing elements in quartz tubes.

What are the different types of selenide? powder ?
Tongrun can provide you with powders such as antimony selenide.

Is selenide poisonous?
Selenium acts as an antagonist to some toxic substances. It detoxifies heavy metals, such as mercury and lead. It can also reduce or delay lipofuscin production, slow down the aging of cells, and help the body to absorb and organize iodine. But excessive inorganic intake will cause toxic conditions, such as hair fall and rotten fingernails. How to put out a selenide flame? If cyanide, phosphide or selenide catch on fire, the only way to extinguish the fire is with water mist and carbon dioxide.

Bismuth Selenide: A new material that is leading the revolution in semiconductors
The researchers used Bismuth Selenide. The researchers also used "sputtering," a thin film depositing technique that is powered by the momentum of ions and atoms within the target material. It is the very first time sputtering has been used for topological insulator material that can be used by the magnetic materials and semiconductor industries. Sputtering produces nanoparticles that are smaller than six nanometers. This layer changes the behavior and physical properties of the material. Researchers discovered that this material has 18 times the efficiency of existing materials for computing processing and memory.

Selenide is a very expensive material Powder ?
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Selenide Powder

Antimony Selenide Sb2Se3 Powder CAS 1315-05-5

admin / 2023-02-07 / no Comments

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%. Orachemicals 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

Specification of Antimony Selenide Sb2Se3 Powder :
Antimony Selenide MF	Sb2Se3
Antimony Selenide Color	Black, dark red
Antimony Selenide Weight	480.38
Antimony Selenide Melting point	611℃
Antimony Selenide CAS No.	1315-05-5
Antimony Selenide EINECS No.	215-256-0
Antimony Selenide Density	5.843 g/cm3

Technical Parameter of Antimony Selenide Sb2Se3 Powder :

COA of Antimony Selenide
Purity	99.99%
Cu	≤5ppm
Ni	≤5ppm
Zn	≤10ppm
In	≤5ppm
Ca	≤5ppm
Fe	≤10ppm
Cr	≤3ppm
Co	≤5ppm
Na	≤5ppm

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.

Antimony Selenide Properties
Other Names	Antimony(III) selenide, diantimony triselenide, antimony triselenide, Sb2Se3 powder
CAS No.	1315-05-5
Compound Formula	Sb2Se3
Molecular Weight	480.4
Appearance	Gray Black Powder
Melting Point	611 ℃
Boiling Point	N/A
Density	5.81 g/cm3
Solubility in H2O	N/A
Exact Mass	481.557201


Antimony Selenide Health & Safety Information
Signal Word	Danger
Hazard Statements	H301-H311-H315-H319-H331-H335
Hazard Codes	T
Risk Codes	26-36/37/39-45
Safety Statements	26-36/37/39-45
Transport Information	UN 1549 6.1/PG 3

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Selenide Powder

Cadmium Selenide CdSe Powder CAS 1306-24-7

admin / 2023-02-01 / no Comments

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. Orachemicals 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:

COA of CdSe
Purity	99.99%
Cu	≤5ppm
Ni	≤5ppm
Zn	≤10ppm
In	≤5ppm
Ca	≤5ppm
Fe	≤10ppm
Cr	≤3ppm
Co	≤5ppm
Na	≤5ppm

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.

Cadmium Selenide Properties
Other Names	cadmium(II) selenide, selanylidenecadmium, cadmium(2+) selenide, Cadmium monoselenide, CdSe powder
CAS No.	1306-24-7
Compound Formula	CdSe
Molecular Weight	191.37
Appearance	Gray or Brown Powder
Melting Point	1268 ℃
Boiling Point	N/A
Density	5.81 g/cm3
Solubility in H2O	N/A
Exact Mass	193.81988


Cadmium Selenide Health & Safety Information
Signal Word	Danger
Hazard Statements	H301-H331-H373-H410
Hazard Codes	T, N
Risk Codes	21-23/25-33-50/53
Safety Statements	36/37-45-60-61
Transport Information	UN 2570 6.1/PG 3

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Blog

Tungsten Selenide Greatly Promotes the Development of Photon Technology

admin / 2023-02-01 / no Comments

What exactly is Tungsten Selenide Selenide tungsten (WSe2) (type 2 d material) is a graphene type 2. Its structure is composed the the top layer of selenium/tungsten atom connections between tungstenatoms. This layer has the following unique properties: high electrical conductivity; atomic thickness; fast electron transfer; constraint spin and more. Furthermore, two selenide-tungsten materials have the lowest thermal conductivity in the world at 100000th the size of a diamond. The application possibilities for tungsten selenide are vast in areas such as photoelectricity, biosensors and supercapacitors.

Research significance of photonics

Photonics, a science that examines information carrier with photon, has broad applications prospects in semiconductor lasers, optical communication devices, photodetectors and other new materials. For the advancement of photonic technology, and for future research into the process of creating photonic devices, it is vital to understand and investigate the photonic generator process.

Tungsten Selenide In Photonic Technology

Researchers discovered that the tungsten selenide was composed of many "co-oscillations". These oscillations are sensitive and responsive to photon absorption. One of WSe2’s oscillations was chosen by the team, which was called D excitons and another pulse (1, 2) was applied. This resulted in one of the two pulses switching to anA exciton while the other pulse (1, 2) was changed to A exciton. Their sum frequency (1+ 2) was then switched to A D exciton with A signal that was 20 times greater than the single resonant. SFG produces photons with a higher intensity than SHG. These are just a few of the many benefits that advanced photonic devices have. Not only does the double resonance SFG technique provide new scientific methods for microscopic, nonlinear spectral, and optical analysis but it also allows for new nonlinear optics techniques and nonlinear optometry using two-dimensional semiconductors. These researches have the potential of bringing photonics up to a higher level, such that medical care can be provided with more advanced optical imaging equipment and less expensive diagnostic methods. Advanc3dmaterials (aka. Advanc3dmaterials is an advanced material. With over 12 years' experience, Advanc3dmaterials is an established global supplier of chemical material. High purity and fine particles are the hallmarks of our [( Selenide-tungsten]] products. We can help you if your requirements are lower.
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Selenide Powder

Indium Selenide In2Se3 Powder CAS 12056-07-4

admin / 2023-01-31 / no Comments

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. Orachemicals 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:

Product Name	MF	Purity	Particle Size	Melting Point	Molecular weight	Color
Indium Selenide	In2Se3	99.9%	-100 mesh	667℃	466.516	Black

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.

Indium Selenide Properties
Other Names	Indium(III) selenide, selenoxoindium, Selanylideneindium, In2Se3 powder
CAS No.	12056-07-4
Compound Formula	In2Se3
Molecular Weight	466.52
Appearance	Black Powder
Melting Point	890 ℃
Boiling Point	N/A
Density	5.8 g/cm3
Solubility in H2O	N/A
Exact Mass	469.557321


Indium Selenide Health & Safety Information
Signal Word	Danger
Hazard Statements	H301-H331-H373-H410
Hazard Codes	T, N
Risk Codes	23/25-33-50/53
Safety Statements	20/21-28-45-60-61
Transport Information	UN 3283 6.1/PG 3