ZnO

Zinc oxide (ZnO) is a good substrate for GaN thin film. It has large exciton binding energy of 60 meV and a bandwidth of 3.73 eV at room temperature, making it a luminescent material for ultraviolet and visible light. Due to the transparency in the visible region, the large electrome-chanical coupling coefficient and the properties of adsorption and desorption of gas molecules on its surface, it is expected to be used in energy limiters with high peak energy, GaN substrates with large size and high quality, and wireless communications which beyond 5GHz in the future, high electric field equipment, high temperature and high energy electronic devices etc.

Uses/Applications

Luminescent material for ultraviolet and visible light.
High electric field equipment;
High temperature and high energy electronic devices.
High-efficiency semiconductor photoelectronic devices, semiconductor photocatalysis, and diluted magnetic semiconductors.

Features/Benefits

Large exciton binding energy of 60 meV;
Transparent in the visible region;
Large electrome-chanical coupling coefficient.

  • Crystal Structure

    Hexagonal

    Lattice Constant

    a=3.252Å    c=5.313 Å

    Density

    5.7g/cm3

    Growth Method

    Hydrothermal

    Mhos Hardness

    4mohs

    Melting Point

    1975℃

    Thermal Expansion

    //a 6.5 x 10-6 /K    //c 3.7 x 10-6 /K

    Heat Capacity

    0.125 cal /gm

    Thermal-Electric Constant

    1200 mv/K@ 300 ℃

    Thermal Conductivity

    0.006 cal/cmK

    Transmittance

    0.4-0.6 um > 50% at 2mm

    Orientation

    <0001><11-20><10-10>±0.5º

    Dimension

    25×25×0.5mm10×10×0.5mm10×5×0.5mm5×5×0.5mm

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

    Surface Roughness

    Ra<5Å5×5μm

    Atomic Particle Microscopy (AFM) test report can be provided.

    Polishing

    One side or two sides

    Package

    Class 100 clean bag, Class 1000 super clean room

  • Dimension

    25×25×0.5mm、10×10×0.5mm、10×5×0.5mm、5×5×0.5mm

    Costomized upon customer requirements.