Nb:SrTiO3 Substrate

Niobium-doped strontium titanate has a similar structure to pure strontium titanate single crystal, but Nb:SrTiO3 has electrical conductivity. The conductive Nb:SrTiO3 substrates provide an electrode for certain thin film and device applications. At present, we can provide Nb:SrTiO3 single crystal substrates with Niobium doping concentration of: 0.1wt%, 0.5wt%, 0.7wt% and 1.0wt%.

OST Photonics offers high quality Nb:SrTiO3 substrates for researchers and industries. Crystal orientation, size and thickness can be customized according to your requirements.

Request For Quotations

Features

    • With superconductivity, semi-conductivity, gas sensitivity, heat sensitivity and photosensitivity

    • Low dielectric loss

    • High dispersion frequency

    • High dielectric constant

Applications

    • Nb:SrTiO3 substrates provide an electrode for certain thin film and device applications

Processing Capability

  • Orientation: <100>,<110>,<111>, etc.

  • Dimension: 1”, 10x5mm, 10x10mm, 15x15mm, 20x20mm, etc.

  • Thickness: 0.5mm, 1.0mm, etc.

  • Available items: wafers, substrates, blanks and customized optics

Specification and properties of Nb:SrTiO3 Substrates

Nb Concentration

1.0wt%

0.7wt%

0.5wt%

0.1wt%

Resistivity

0.0035 ohm.cm

0.007 ohm.cm

0.05 ohm.cm

0.08 ohm.cm

Mobility

9.0 cm2/vs

8.5 cm2/vs

8.5 cm2/vs

6.5 cm2/vs

Orientation

<100>,<110>,<111>, etc.

Orientation Tolerance

±0.5° or better

Dimension

1”, 10x5mm, 10x10mm, 15x15mm, 20x20mm, etc.

Dimension Tolerance

±0.1 mm or better

Thickness

0.5mm, 1.0mm, etc.

Thickness Tolerance

±0.05 mm or better

Surface Finish

Single side polished (SSP)/Double sides polished (DSP)

Surface Roughness

Ra≤5Å (5µmx5µm)

Package

Class 100 clean bag, Class 1000 super clean room