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 Yong Hee
SrTiO3 substrate
    Publish time 2024-06-04 00:00    
SrTiO3 substrate

SrTiO3 crystal, with the chemical formula SrTiO3, is an oxide of strontium and titanium. It belongs to the cubic crystal system and has excellent physical and chemical properties. SrTiO3 single crystal has good lattice matching with various perovskite structure materials, so it is widely used in many fields. For example, it is a high-quality substrate material for high-temperature superconducting films and various oxide films, and is also used for special optical windows and high-quality sputtering targets.

Growth methodFlame method
Crystal structureCubic
Lattice constanta=3.905Å
Melting point (℃)2080
Density5.175 (g/cm 3)
Hardness6 (mohs)
Thermal expansion coefficient9.4 x10-6 /℃
Standard Size10x10x0.5mm, 5x5x0.5mm
PolishingSingle or double side polished
Ra:≤ 5Å (5μm × 5μm)

100 clean bag, 1000 clean room

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