Substrates for Sample Preparation

Surface-sensitive microscopy needs a substrate flatter and cleaner than the feature being studied. SPI supplies HOPG and muscovite mica that cleave to atomic flatness, polished silicon and sapphire wafers, ITO-coated conductive slides, and exfoliated 2D materials.

SPI Supplies — Substrates for Sample Preparation

Overview

In scanning probe microscopy and surface science the substrate is part of the measurement: any roughness it contributes is indistinguishable from the sample. Highly ordered pyrolytic graphite and muscovite mica solve this by cleaving — peel off the top layer with tape and a fresh, atomically flat, contamination-free surface is exposed in seconds. Where conductivity or transparency is needed the answer differs: ITO-coated slides and coverslips are conductive yet optically clear, silicon wafers give a flat reference surface with a well-characterised oxide, and sapphire offers hardness and chemical inertness for high-temperature work. SPI also supplies magnesium oxide and molybdenum disulfide substrates, silicon nitride membranes, polymer films, AFM stainless steel disks, and exfoliated hexagonal boron nitride and transition metal dichalcogenides for 2D materials research.

Manufacturer: SPI Supplies — USA

Local sales, installation, and technical support in Bangladesh by trained local engineers.

Models

  • SPI Supplies HOPG Highly Ordered Pyrolytic Graphite — Substrates for Sample Preparation

    HOPG Highly Ordered Pyrolytic Graphite

    SPI Supplies offers HOPG from two distinct sources, each processed differently but of comparable excellent quality.

  • SPI Supplies Muscovite Mica Substrates — Substrates for Sample Preparation

    Muscovite Mica Substrates

    SPI Supplies also provides instructional video guidance on techniques for cleaving mica sheets prior to use.

  • SPI Supplies Silicon Wafers — Substrates for Sample Preparation

    Silicon Wafers

    Silicon chip substrates are supplied as small flat pieces for general sample support, calibration, or as a base for further thin-film deposition.

  • SPI Supplies Indium-Tin-Oxide (ITO) Coated Slides & Coverslips — Substrates for Sample Preparation

    Indium-Tin-Oxide (ITO) Coated Slides & Coverslips

    SPI Supplies provides technical data and a product selection guide to help customers choose the correct resistivity and format for their application.

  • Silicon Nitride Both Side Wafers

    The wafers are supplied in multi-piece packs to support batch processing workflows.

  • SPI Supplies 2D Materials — Substrates for Sample Preparation

    2D Materials

    Exfoliation-grade hexagonal boron nitride and transition metal dichalcogenide crystals, stable in ambient air.

  • SPI Supplies Sapphire Substrate — Substrates for Sample Preparation

    Sapphire Substrate

    Sapphire substrates from SPI Supplies are single-crystal sapphire, prized for their excellent optical, physical, and chemical properties.

  • SPI Supplies AFM Stainless Steel Disks — Substrates for Sample Preparation

    AFM Stainless Steel Disks

    Stainless steel substrates are especially useful when magnetic sample holders or magnetic AFM stages are used, since the disc itself is attracted to the mounting stage.

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