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Indium Sulfide | In2S3


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Heeger Materials offers a selection of over 100 high purity products, including metals, metal oxides and metal salts, with 99.999% purity or higher. We can provide Indium Sulfide (In2S3) with the purity of 99.99%, 99.999%,99.9999% and 99.99999% in size of ingot, lump and powder.

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Data sheet

Purity99.99%-99.999% (4N-5N)
ProductIndium sulfide

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Gamma layered phase of In2S3 is a direct gap semiconductor with an optical bandgap ranging from 2 eV - 3.25 eV. Its fundamental bandgap nature (direct vs indirect) and its value have been much debated in the field and remain open-ended. In2S3 is a particularly attractive semiconductor for photoelectrochemical, solar cell, and photonic applications. Typical crystal sizes range in few mm in size and each order contains 5-7 pieces of In2S3 crystals. The crystals appear layered but are harder to exfoliate compared to molybdenum disulfide. Thus, we recommend using highly adhesive tapes, ultrasonic exfoliation, or other methods to yield atomically thin sheets.

High-purity and ultra-high purity Indium Sulfide (In2S3) materials are crucial components for the research, development, and production of advanced technologies which require optimum properties, performance, and quality.

  • Available form: lump, powder
  • CAS number: 12030-24-9
  • Molecular weight: 325.83
  • Name: Indium(III) sulfide
  • Properties: orange-red powder
  • Density (g/mL, 25℃): 4.45
  • Melting point (oC): 1050
  • Purity: 4N (99.99%) or better


It is crucial a component for the research, development, and production of advanced technologies.


It is packed with dacron film, then covered with a sealed plastic film bag or in a polyethylene bottle.

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