Potassium Tantalate (KTaO3) Crystals and Substrates
Versatile Transmission Range: Effective across a broad spectrum, from UV to IR, enhancing its utility in optical and electronic applications.
High Dielectric Constant: Benefits applications requiring high-performance capacitors and other dielectric devices.
Ferroelectric and Piezoelectric Properties: Enables advanced functionalities in memory devices, sensors, and actuators.
High Melting Point: Ensures stability and durability in high-temperature applications.
Applications: Ferroelectric Devices, Substrates for Thin Film Growth, Optical Components, Capacitors and Microwave Devices, Waveguides, Sensors and Actuators, etc.
Potassium Tantalate (KTaO3) is a perovskite crystal with a cubic lattice structure, known for its exceptional properties that make it suitable for a wide range of advanced applications.
Specifications:
| Molecular formula | KTaO3 (KT) |
| Point group | m3m |
| Unit cell parameters | 0.3984nm |
| Melting point | 1352.2℃ |
| Density | 7.025 g/cm3 |
| Mohs hardness | 6 |
| Growth method | Tirafa |
| Refractive rate | 2.226@633nm, 2.152@1539nm |
| Coefficient of thermal expansion | 4.027*10-6/K) |
| Specific heat (room temperature JK-1 g-1) | 0.378 |
| Transparent band (nm). | 380~4000 |
| Conventional orientation | <100>; <110>; <111> |
| Regular size | 20x20x0.5mm; 10x10x0.5mm, 5x5x0.5mm, or according to customer requirements |
| polished | Single throw, double throw, Ra< 5A |
Advantages:
- Versatile Transmission Range: Effective across a broad spectrum, from UV to IR, enhancing its utility in optical and electronic applications.
- High Dielectric Constant: Benefits applications requiring high-performance capacitors and other dielectric devices.
- Ferroelectric and Piezoelectric Properties: Enables advanced functionalities in memory devices, sensors, and actuators.
- High Melting Point: Ensures stability and durability in high-temperature applications.
Applications:
- Ferroelectric Devices: Memory Devices: Utilized in ferroelectric memory devices due to its ability to switch polarization under an external electric field.
- Substrates for Thin Film Growth: Perovskite Materials: Ideal for the epitaxial growth of thin films, including complex oxides and high-temperature superconductors.
- Optical Components: Wide Transmission Range: Suitable for optical applications that require transmission across UV to IR wavelengths.
- Capacitors and Microwave Devices: High-Performance Capacitors: Due to its high dielectric constant.
- Waveguides: Optical Waveguides: Used in various waveguide applications due to its optical properties.
- Sensors and Actuators: Piezoelectric Sensors: Used in devices that convert mechanical stress into electrical signals.
