Barium titanate (BaTiO3)

Barium titanate single crystal has excellent photorefractive properties, high self pumped phase conjugation reflectivity and double wave mixing (optical amplification) efficiency, which has great potential applications in the field of optical information storage. It is also an important substrate

Dihedral Technology(DHD) Co., Ltd. manufacture and processing/provide multiple specifications and high quality BaTiO3 crystal,targets,materials.

Applications

Barium titanate has enormous potential application prospects in the field of optical information storage.

Features

• Barium titanate is a ferroelectric material with high phase transition temperature and strong ferroelectric polarization.
• Barium titanate has a high dielectric constant, which makes it widely used in capacitors and electronic devices.
• Barium titanate material also shows good piezoelectric and Thermoelectric effect, which makes it have potential applications in the field of piezoelectric devices and thermoelectric energy conversion.
• Barium titanate has high optical transparency, which makes it have important application value in the field of optoelectronics and optical communication.
• Barium titanate is a ceramic material, so it has excellent chemical stability and mechanical stability, and can maintain its performance under various environmental conditions.

  • Crystal System

    Tetragona(4m):  13°C < T <132°C  a=3.99 ,c=4.04,(at 26°C)

    Density

    6.02g/cm3

    Melt Point

    1612℃

    Growth Method

    Top Seeded Solution Growth ( TSSG)

    Dielectric Constant

    ea=3700 ec=135(free state)


    ea=2400 ec=60

    Refractive Index


    515nm

    633nm

    800nm


    no

    2.4912

    2.4160

    2.3681


    no

    2.4247

    2.3630

    2.3235

    Transmission Wavelength

    0.43-6.30μm

    Photoelectric Coefficient

     r1T3=8±2pm/V  rT33=105±10pm/V  rT42=1300±100pm/V

    Self-pumped Phase Conjugate Reflectivity0°cut

     50 - 70 % for l = 515nm(Ce: BaTiO3)

     40 - 60 % (PureBaTiO3) for l = 515nm

     50 - 80 % for l = 633nm(Ce: BaTiO3)

     40 - 60 % for l = 633nm (PureBaTiO3)

    Piezoelectric Coefficient

    d33 = 496 pC·N−1

    Absorption Loss

     l: 515nm 

    633nm

     800nm


    a: 0.285cm-1 

     0.108cm-1

    0.033cm-1

    Orientation

    <100><001><110><111>±0.5º

    Dimension

    10×10×1/0.5mm10×5×1/0.5mm5×5×1/0.5mm

    According to customer needs, substrates with special orientation and size can be customized.

    Polishing

    One side or two sides

    Surface Roughness

    Surface roughness(Ra):<=10 Å
    Atomic Particle Microscopy (AFM) test report can be provided.

    Package

    Class 100 clean bag, Class 1000 super clean room