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Sulfide Compounds

Sulfide Compounds mainly refer to the metal elements and metalloid compounds, which have stoichiometric composition changing within a certain range to form a compound-based solid solution. Inter-metallic compound is of its excellent properties between the metal and ceramic, and become an important branch of the new structural materials. Sulfides Compound of Arsenic Sulfide As₂S₃, Bismuth Sulfide Bi₂S₃, Gallium Sulfide Ga₂S₃, Germanium Sulfide GeS₂, Indium Sulfide In₂S₃, Lithium Sulfide Li₂S,  Molybdenum Sulfide MoS₂, Selenium Sulfide SeS₂, Sliver Sulfide Ag₂S, Solid Electrolytes Li₂S+GeS₂+P₂S₅ and Li₂S+SiS₂+ Al₂S₃ multi-element sulfide composite electrode material, Tin Selenide SnS₂, Titanium Sulfide TiS₂, Zinc Sulfide ZnS and its (Li, Na, K, Be, Mg, Ca) compounds and Rare Earth compounds can also be synthesized in form of powder, granule, lump, bar, crystal and substrate. Sulfides compound find a wide range of application  in luminescent materials, nonlinear optical materials, photocatalysis materials, electrolyte material, semiconductor dopant, QLED display, IC field etc and other material fields.

Silver Sulfide

Silver Sulfide Ag₂S, grey black solid, CAS Number: 21548-73-2, MW 247.8, density 6.82-7.23g/cm³, melting point 825℃, insoluble in water but soluble in sulfuric acid and nitric acid. Silver sulfide Ag₂S is one of the most requisite semiconducting sulfides, which has three basic polymorphic modifications of α-Ag₂S phase (acanthite), β-Ag₂S phase (argentite) and cubic γ-Ag₂S phase. In normal conditions, bulk coarse-crystalline silver sulfide with α-Ag₂S acanthite-type structure is a direct semiconductor with wide band gap of 0.9 eV, low charge-carrier mobility and good conductivity. Good chemical stability, ultra-low solubility, the presence of phase transition between a semiconducting acanthite and superionic argentite, which can be induced by external electric field without crystal heating, and unique optical and conductive characteristics of different phases of silver sulfide make it an excellent substance for preparation of nanostructured films and heteronanostructures with improved properties for possible application in optoelectronics, biosensing, in photochemical cells, infrared detectors, resistance-switches and in nonvolatile memory devices, an ideal semiconducting material for preparing low-toxicity quantum dots, photocatalysts in various redox-processes and for producing nanocomposite photocatalysts. Silver sulfide Ag₂S at Western Minmetals (SC) Corporation with purity of 99.99% 4N, 99.999% 5N can be delivered in powder, granule, lump, chunk, bulk crystal and single crystal etc, or as customized specification, with vacuum packed by bottle or aluminum composite film bag.

Arsenic Sulfide

Arsenic Sulfide or Diarsenic Trisulfide As₂S₃, red lustrous monoclinic crystal, CAS No.1303-33-9, melting point 360°C, boiling point 707°C, molecular weight 246.04, density 3.5g/cm³, is soluble in acids and alkalis but insoluble in water. As₂S₃ occurs both in crystalline and amorphous forms. Arsenic Sulfide As₂S₃ is a group V/VI, intrinsic P-type semiconductor with a direct band-gap of 2.7 eV. and exhibits photo-induced phase-change property. The wide band gap makes it transparent to infrared between 620 nm and 11 µm. Arsenic trisulfider or Arsenic Trisulfide crystalline solid finds applications in depilatory agent, paint pigment, shot manufacturing, pyrotechnics, fireworks, acousto-optic material and used as a semiconductor and in photo optic applications etc. It can be used as a high resolution photoresist material to fabricate 3D nanostructures. Arsenic trisulfide is manufactured into amorphous form as a chalcogenide glass for infrared optics, which is more resistant to oxidation than crystalline arsenic trisulfide. Arsenic Sulfide or Arsenic Trisulfide Arsenic Sulfide As₂S₃ 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.

Gallium Sulfide

Gallium Sulfide or Digallium Trisulfide Ga₂S_3, white solid, density 3.46~3.65g/cm³, melting point of 1090~1255°C, molecular mass 235.641, CAS 12259-25-5, is sensitive to moisture, dissolves in water slowly, and easily soluble in concentrated alkaline to form gallate salt but also soluble in hydrochloric acid and nitric acid. Gallium Sulfide yellow layered crystal sublimates at 900-1000⁰C and decompose above melting point. Gallium Sulfide Ga₂S₃ crystal 99.999% purity is yellow colored and transparent, which is synthesized by CVD chemical vapor deposition method. Alpha phase Gallium Sulfide is a semiconductor with an indirect band gap of ~2.6 eV.  Gallium Sulfide Ga₂S₃ 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, which is widely used for semiconductor industry and thin film solar cells.

Indium Sulfide

Indium Sulfide or Indium Trisulfide In₂S₃, 99.99%, 99.999%, CAS 12030-14-7, density 5.18g/cm³, melting point 695^oC, MW 325.831, black or reddish brown crystals, deformed NaCl structure, is stable at room temperature and insoluble in water and dilute acid. Single crystal Indium Sulfide In₂S_3, III-VI compound semiconductor, is a direct gap and N-type conductivity semiconductor. Indium sulfide In₂S₃ is a particular attractive semiconductor for solar cell, photoconductive, optical and electrical sensor, which has a good application prospect in photovoltaic and wide spectrum optoelectronic devices. It can be used as buffer layer of CIGS thin film solar cells. Furthermore, Indium Sulfide is easy to form compounds with other metal sulfides, such as indium silver disulfide, copper indium disulfide etc which are important semiconductor materials. Indium Sulfide In₂S₃ at Western Minmetals (SC) Corporation with purity of 99.99% 4N, 99.999% 5N in shape of powder, granule, lump, chunk, bulk crystal and single crystal etc is available or as customized specification, with package of polyethylene bottle or composite bag.

Zinc Sulfide

Zinc Sulfide ZnS 99.99%, 99.999% purity, CAS1314-98-3, MW 97.44, density 3.98g/cm³, melting point 1700^oC, is white to grayish white or light yellow solid cubic crystalline with slightly pungent smell. It is a relatively stable in dry air, soluble in dilute inorganic acid but insoluble in water. Zinc Sulfide is important infrared window materials with the light transmission range of 0.35 ~ 14.51m. It also primarily used as photoconductor material and coating material for preparation of photo controlled bioelectrochemical sensor, flexible transparent conductive coating for manufacturing flexible displays, solar cells and other printed electronic devices, for color tunable LED, and for various filters and laser windows. It finds more application in fluorescent materials, semiconductor components, piezoelectric, photoelectric, thermoelectric devices, UV radiation, anode ray, X-ray, r-ray, laser radiation detector materials, ZnS film heterojunction optoelectronic devices etc. Zinc Sulfide ZnS at Western Minmetals (SC) Corporation with purity of 99.99% 4N, 99.999% 5N in powder, granule, lump, chunk, bulk crystal and single crystal etc is available or as customized specification, with package of polyethylene bottle or composite bag.