Bismuth Sulfide | Bi2S3 | CAS 1345-07-9


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Bismuth Sulfide (Bi2S3) exhibits semiconductor properties with high electrical conductivity and optical characteristics. Heeger Materials can provide the best Bismuth Sulfide (Bi2S3) with a purity of 99.99%, 99.999%, and 99.9999% in size of lump and powder. The crystal size is 5-10 mm and the powder particle size can be customized.

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Data sheet

Purity99.99%-99.9999% (4N-6N)
ProductBismuth sulfide

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Bismuth (III) sulfide (Bi2S3) has a layered (lamellar) structure much similar to other 2D crystals such as graphite, MoS2, and Sb2Te3. It is stabilized in the orthorhombic phase and has semiconducting behavior (~1.4 eV gap). It can be exfoliated down to monolayers through standard mechanical exfoliation techniques. The crystals were characterized and confirmed by x-ray diffraction (XRD), x-ray photoelectron spectroscopy, Raman, photoluminescence, SIMS, and Auger electron spectroscopy techniques.

Bismuth Sulfide | Bi2S3 | CAS 1345-07-9

High-purity and ultra-high-purity Bismuth Sulfide (Bi2S3) materials are crucial components for the research, development, and production of advanced technologies that require optimum properties, performance, and quality.

  • Molecular Formula: Bi2S3
  • Purity: 99.99% -99.9999%
  • EINECS NO.: 215-716-0
  • CAS: 1345-07-9
  • Molar mass: 514.16 g/mol
  • Density: 6.78 g/cm3
  • Melting point: 685 ˚C
  • Solubility in water: insoluble
  • Solubility: soluble in acid
  • Magnetic susceptibility (χ): -123.0·10−6 cm3/mol

Bismuth (III) sulfide (Bi2S3) Crystal Specifications


HM-Bi2S3 Crystal

Growth Technique


Band gap

1.4 eV

Characterization method

EDS, SEM, Raman


5~10 mm


99.99% - 99.9999% (4N-6N)

Bismuth (III) sulfide (Bi2S3) Crystal XRD

Bismuth Sulfide | Bi2S3 XRD

Bismuth (III) sulfide (Bi2S3) Crystal Raman Spectrum

Bismuth Sulfide | Bi2S3 Raman Spectrum

Bismuth (III) sulfide (Bi2S3) Crystal Photoluminescence Spectrum

Bismuth Sulfide | Bi2S3 Photoluminescence Spectrum

Bismuth (III) sulfide (Bi2S3) Crystal Applications

  • Used as a photosensitive material in the production of photovoltaic cells, photodetectors, and optoelectronic converters.
  • Used in optical devices, infrared sensors, and semiconductor materials.
  • Used in thermoelectric power generators and thermoelectric coolers.


Bismuth Sulfide (Bi2S3) is carefully packaged in carton boxes with foam protection to minimize damage during storage and transportation and to preserve the quality of our products in their original condition. The vacuum packing is 1kg/bag, 25kg/barrel, or based on specific requirements.

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