Manufacturing Companies for Tungsten Carbide Pen Ball - Zinc Selenide ZnSe | CdSe PbSe SnSe 4N 5N 6N – WMC

Cadmium Selenide CdSe,  red to black crystal, most common Wurtzite hexagonal structure, CAS 1306-24-7, molecular weight 191.377, density 5.8g/cm³, melting point 1350°C, insoluble in Water, is a solid, binary primarily ionic compound of cadmium and selenium. Polycrystalline compounds is synthesized by the High-Pressure Vertical Bridgman method or High-Pressure Vertical Zone Melting, or distillation and CVD synthesis, which is used for growing CdSe single crystal, CdSe evaporation material, namely for making photocell, rectifier, luminous paint, etc. Cadmium Selenide with wurtzite crystal structure is an important II-VI n-type semiconductor, and has a band gap of 1.74 eV. CdSe nanoparticle by several production methods of arrested precipitation in solution, synthesis in structured media, high temperature pyrolysis, sonochemical, and radiolytic methods is of 1–100 nm in size, exhibits a property known as quantum confinement, they are finding applications in opto-electronic devices such as laser diodes that cover a large part of the electromagnetic spectrum,  especially useful as a component of photocatalysts, use in biomedical imaging applications, and is used in windows for instruments using infra-red (IR) light, nanosensing and high-efficiency solar cells. Cadmium Selenide CdSe at Western Minmetals (SC) Corporation with purity of 99.99% 4N, 99.999% 5N and  99.9999% 6N can be delivered in form of powder, granule, lump, chunk, blank, bulk crystal and single crystal etc or as customized specification.

Copper Selenide or Dicopper Selenide, Cuprous Selenide, Cu2Se CAS No 20405-64-5, black cubic crystal, density 6.749, melting point 1113°C, insoluble in water but easily soluble in nitric acid, soluble in sulfuric acid and ammonia. Copper Selenide is prepared in a vacuum quartz seal tube placed in horizontal synthesis furnace. Ligand-stabilized copper selenide (Cu(2-x)Se) nanocrystal is synthesized by a colloidal hot injection process, which readily disperse in water and exhibit strong near-infrared (NIR) optical absorption with a high molar extinction coefficient, it finds application in photothermal therapy, ad for the preparation of group compound semiconductor, cuprous selenide target material, copper-indium-gallium-Selenium CIGS thin film solar cell etc. Copper Selenide CuSe at Western Minmetals (SC) Corporation with purity of 99.99% 4N, 99.999% 5N can be delivered in form of powder, granule, lump, chunk, pill, needle, blank, bulk crystal and single crystal etc or as customized specification.

Tungsten Selenide or Tungsten Diselenide, WSe₂ CAS 12067-46-8, density 9.32g/cm³, molecular weight 341.76, is insoluble in water. Tungten Diselenide belongs to group V transition metal dihaloalkanes TMDC. WSe₂ is a P-type or N-type semiconductor with an indirect band gap of ~ 1.3ev, and a single layer of WSe2 has a direct band gap. These layers are stacked together by vander Waals interaction and can be stripped into thin 2D layers. Being Lamellar structured, dry and solid lubricant, WSe₂ has the lowest thermal conductivity with exceptional stability at high temperatures and in high vacuum. Tungsten Selenide thin films for terrestrial photovoltaic is synthesized by Chemical-Vapor-Deposition CVD, which can be for flexible thin film solar cell, or as a sputtering target. Tungsten Selenide WSe₂ at Western Minmetals (SC) Corporation with purity of 99.99% 4N, 99.999% 5N and  99.9999% 6N can be delivered in form of powder, granule, lump, chunk, blank, target, bulk crystal etc or as customized specification.

Lead Selenide PbSe, gray or grayish black crystalline solid, a selenide of lead, cubic crystal of the NaCl structure, CAS 12069-00-0, MW 286.16,density 8.10g/cm³, melting 1078°C, is  insoluble in water but soluble in nitric acid and hot concentrated hydrochloric acid. Lead Selenide is prepared by mixing high-purity lead and selenium in stoichiometric proportion and heating them in quartz ampoules to 1100-1150° in furnace or reduction of lead selenite with hydrogen. Lead selenide is a semiconductor material of direct bandgap of 0.27 eV at room temperature, which performs efficiently at low temperatures without the need for cooling. As a sensitive material to the infrared radiation, PbSe has unique and outstanding characteristics making this material an excellent detector of low cost high speed infrared imagers for thermal imaging operating at wavelengths between 1.5–5.2μm, and to make photosensitive resistance. Lead selenide nanocrystal can be used as quantum dots, for example in nanocrystal solar cells. Meanwhile, Lead Selenide is a high performance thermoelectric material which has a number of industrial applications. Lead Selenide PbSe at Western Minmetals (SC) Corporation with purity of 99.99% 4N can be delivered in form of powder, granule, lump, chunk, blank, bulk crystal and single crystal etc or as customized specification.

Molybdenum Selenide MoSe₂, gray solid crystalline appearance, layered structure, is an inorganic compound semiconductor of molybdenum and selenium, which is known as group VI transition metal dichalcofemides, CAS 12058-18-3, density 6.0g/cm³, MW 253.86, melting point 1200°C, insoluble in water. Bulk MoSe synthesis and purification involves direct reaction of molybdenum and selenium by chemical vapor transport CVT, singlr crytstal MoSe is produced by scotch tape exfoliation from bulk crystal or by chemical vapor deposition CVD. Molybdenum Selenide MoSe₂, narrow band gap of 1.2ev, can not only absorb ultraviolet light but also visible light, it exhibits a wide range of light response and high utilization efficiency of solar light, so it is used as photodetectors and transistors. Molybdenum Selenide’s layered nature and higher electrical conductivity gives rise to several interesting applications such as field effect transistors, piezoelectrics, and substrates for self assembly, and also for material modification, lubricant additives, solar cells, energy storage, microelectronics, optoelectronics and high performance photocatalysts. Molybdenum Selenide MoSe₂ at Western Minmetals (SC) Corporation with purity of 99.99% 4N can be delivered in form of submicro and nanomicron powder, granule, lump, chunk, blank, bulk crystal and single crystal etc or as customized specification.

Tin Selenide SnSe, gray solid crystal with rhombic crystal structure, molecular weight 199.68, density 6.18g/cm³, melting point 861°C, can be dissolved in alkali metal sulfide and selenide, and easily soluble in nitric acid and aqua regia but insoluble in water. SnSe compound is typical layered material synthesized by the various methods employed for the phase-pure SnSe like hot injection, facile surfactant-free synthesis, thermal evaporation, insert gas condensation etc. Tin Selenide is an important IV-VI semiconductor, the indirect band gap of bulk materials is 0.90 EV and the direct band gap is 1.30 eV, which can absorb most of the solar spectrum, and been extensively explored in the thermoelectric fields and photovoltaic PV application for its extraordinary advantages including excellent optoelectronic properties, absence of toxicity, economically raw material, relative abundance, environmental friendliness and chemical stability. As tin-based binary chalcogenide compound, the electronic, thermoelectric, and optoelectronic characteristics of bulk crystals, thin films, and nanostructures of Tin Selenide SnSe finds novel applications in the next generation electronic, optical, optoelectronic, flexible systems, Li-ion rechargeable batteries, super capacitors, phase-change memory devices and topological insulators. Tin Selenide SnSe at Western Minmetals (SC) Corporation with purity of 99.99% 4N, 99.999% 5N can be delivered in form of powder, granule, lump, chunk, blank, bulk crystal and single crystal etc or as customized specification.

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