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Product Code M2205D1-5g
Price £200 ex. VAT

Low price, high purity 2D metal bismuth sulfide powder and crystals

For the development of next-generation electronics, optoelectronics, and nanotechnology

Technical Data | MSDS | Structure | Literature and Reviews | Related Products | Resources and Support

Bismuth sulfide (Bi2S3, also known as bismuth(III) sulfide or bismuth trisulfide), CAS number 1345-07-9, belongs to group 15 (VA) post-transition metal trichalcogenides (TMTCs). Orthorhombic structured bismuth sulfide (Bi2S3) is a non-toxic n-type semiconductor material containing environmentally benign elements bismuth and sulfur. Stoichiometric Bi2S3 has a layered structure form of atomic scale ribbons which are bound by van der Waals forces. The structure of Bi2S3 favours the formation of one-dimensional nanostructures such as nano-wires, rods, tubes and ribbons.

High purity 1345-07-9

High purity

High purity 2D Material

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Low Cost Bismuth Sulfide

Low Cost

Low cost semiconductor

Non-toxic semiconductor


Non-toxic n-type semiconductor

Ultralong nanoribbons with lengths of up to millimeters can be obtained in a large scale via a solvothermal process by using a mixture of aqueous NaOH solution in glycerol. Ultrathin corrugated nanosheets can also be achieved by using a hydrazine salt based liquid phase exfoliation process. However, sulfur vacancies occur that alters the stoichiometry of the material to a chemical formula of Bi2S2.6 during the process of chemical exfoliation.

Bi2S3 is a direct bandgap semiconducting with bandgap of 1.3 eV and large absorption coefficient of 10cm-1.

We supply low price bismuth sulfide in several different forms for a range of applications.

Bismuth sulfide powder

Bismuth Sulfide Powder

Can be used for preparation of bismuth sulfide nanoplates and ultrathin films

Sold by weight

≥99.995% purity

From £350

Bismuth sulfide crystals

Bismuth Sulfide Crystals by Size

Can be used to produce single or few-layer bismuth sulfide sheets via mechanical or liquid exfoliation

Small (≥10 mm2) or medium (≥25 mm2) crystals available*

≥99.999% purity

From £520

*Typical representative size, areas/dimensions may vary

Bulk single bismuth sulfide crystals are most commonly used as sources from which single or few-layer sheets can be obtained via either mechanical or liquid exfoliation. Single bismuth sulfide crystal or films produced from such crystals are suitable for study using atomic force microscopy or transmission electron microscopy

Technical Data

CAS Number 1345-07-9
Chemical Formula Bi2S3
Molecular Weight 514.16 g/mol
Bandgap ~1.3 - 1.7 eV
Preparation Synthetic - Chemical Vapour Transport (CVT)
Structure Orthorhombic
Electronic Properties Semiconductor
Melting Point 850 °C
Colour Black needle-like crystal
Synonyms Bismuth(III) sulfide
Classification / Family Transition metal trichalcogenides (TMTCs), 2D Semiconductor materials, Nano-electronics, Nano-photonics, Photovoltaic, Materials science

Product Details

Form Purity Size
Nanopowder ≥99.9% ~ 500 nm
Powder ≥99.995% Not defined
Crystal ≥99.999% Small (≥10 mm2); Medium (≥25 mm2)

Pricing Table

Product Code Form Size/Weight* Price
M2205D1 Nanopowder 5 g £200
M2205D1 Nanopowder 10 g £310
M2205C1 Powder 1 g £350
M2205A10 Crystal Small (≥10 mm2) £520 ea.
M2205A25 Crystal Medium (≥25 mm2) £850 ea.

*typical representative size, areas/dimensions may vary

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MSDS Documents

Bismuth sulfide powder MSDSBismuth sulfide powder MSDS Sheet

Bismuth sulfide crystal MSDSBismuth sulfide crystal MSDS Sheet

Bismuth sulfide nanopowder MSDSBismuth sulfide nanopowder MSDS Sheet

Structure of Bismuth Sulfide

Similar to other 2D crystals such as graphite, MoS2 and TiS2. Bi2Shas a layered structure where layers are stacked together via van der Waals (vdW) interactions thus can be peeled into ultrathin layers by either mechanical or wet chemical exfoliation. It belongs to the Pnma space group with an orthorhombic unit cell that contains 20 atoms. The crystal structure is strongly anisotropic, consisting in tightly bonded units of Bi4S6 (also called ribbons) in an herringbone arrangement.

The structure of Bi2S3 favours the formation of one-dimensional nanostructures such as nano-wires, rods, tubes and ribbons.

Bi2S3 crystal structure
Top and side view of single-layer bismuth sulfide (Bi2S3)

Literature and Reviews

  • Electronic Properties and Quantum Confinement in Bi2S3 Ribbon-Like Nanostructures, V. Calzia et al., J. Phys. Chem. C, 117 (42), 21923-21929 (2013); doi: 10.1021/jp405740b.
  • Sensitive Solution-Processed Bi2S3 Nanocrystalline Photodetectors, Nano Lett., 8 (11), 4002-4006 (2008); doi: 10.1021/nl802600z.
  • Bi2S3 Liquid-Junction Semiconductor-Sensitized SnO2 Solar Cells, Y. Lin et al., J. Electrochem. Soc.,· 161 (1) H1-H5 (2014); DOI: 10.1149/2.002401jes.

We stock a wide range of 2D materials available to purchase online. Please contact us if you cannot find what you are looking for.

Resources and Support

Viscoelastic Transfer of 2D Material Using PDMS

Viscoelastic transfer using polydimethylsiloxane (PDMS) stamps is one of the methods used for the deterministic placement of 2D materials and the fabrication of van der Waals heterostructures. It relies on the viscoelasticity of PDMS, which behaves as an elastic solid on short time scales, but as a viscous fluid on long time scales.

Learn more...
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