PMN-PT Crystal Substrates
- Ultra-High Piezoelectric Coefficient (d₃₃ > 1500 pC/N): Enables extremely sensitive actuation and sensing.
- High Electromechanical Coupling Coefficient (k₃₃ > 0.9): Ensures efficient energy conversion.
- Large Strain (>0.1%): Suitable for actuators requiring high displacement.
- Low Dielectric Loss: Enhances energy efficiency and system stability.
- Superior Bandwidth and Sensitivity: Critical for medical ultrasound and SONAR transducers.
- Low Acoustic Impedance: Better matching with human tissues for biomedical applications.
- Customizable Crystal Composition (PMN-PT with various PT ratios): Tunable properties based on application requirements.
- Excellent Optical Quality (for thin PMN-PT films): Applicable in electro-optic modulators and photonic devices.
Custom products or bulk orders, please contact us for competitive pricing!
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Description
PMN-PT (Lead Magnesium Niobate-Lead Titanate) single crystals are advanced piezoelectric materials exhibiting exceptional electromechanical coupling coefficients, high dielectric constants, large piezoelectric coefficients, and outstanding strain responses.
Due to their superior performance compared to traditional piezoelectric ceramics (such as PZT), PMN-PT crystals are widely used in next-generation sensors, actuators, ultrasonic transducers, medical imaging devices, and adaptive optics.
Our PMN-PT crystals are available with customizable orientations, doping, and cutting options to meet specific performance needs in high-end applications across aerospace, medical, and industrial fields.
Crystal Structure and Orientation:
- Chemical Formula: (1-x)Pb(Mg₁/₃Nb₂/₃)O₃–xPbTiO₃
- Crystal System: Perovskite, rhombohedral or tetragonal (depending on composition and temperature)
- Typical Transparency Range: 500 nm – 5000 nm (varies with thickness)
- Curie Temperature: ~130–160°C (depending on composition)
- Density: 8.1 g/cm³
- Dielectric Constant (1 kHz): Up to 5000
- Piezoelectric Constant (d₃₃): > 1500 pC/N (extremely high)
- Available Orientations:
- <001>-oriented: For maximum longitudinal piezoelectric performance
- <011>-oriented: For shear-mode applications
- <111>-oriented: For isotropic responses
- Custom crystallographic orientations available upon request
Key Properties and Advantages:
- Ultra-High Piezoelectric Coefficient (d₃₃ > 1500 pC/N): Enables extremely sensitive actuation and sensing.
- High Electromechanical Coupling Coefficient (k₃₃ > 0.9): Ensures efficient energy conversion.
- Large Strain (>0.1%): Suitable for actuators requiring high displacement.
- Low Dielectric Loss: Enhances energy efficiency and system stability.
- Superior Bandwidth and Sensitivity: Critical for medical ultrasound and SONAR transducers.
- Low Acoustic Impedance: Better matching with human tissues for biomedical applications.
- Customizable Crystal Composition (PMN-PT with various PT ratios): Tunable properties based on application requirements.
- Excellent Optical Quality (for thin PMN-PT films): Applicable in electro-optic modulators and photonic devices.
Typical Applications:
- High-performance ultrasonic transducers (medical imaging, NDT, SONAR)
- Sensors (accelerometers, hydrophones, pressure sensors)
- Actuators (micro-positioners, adaptive optics systems)
- Piezoelectric energy harvesters
- Electro-optic devices (modulators, Q-switches)
- MEMS and NEMS devices
- Tunable RF filters and resonators
- Aerospace and defense adaptive structures
- Optical beam steering and deformable mirrors
Specifications:
| Composition (x) | 0.24 – 0.33 (adjustable) |
| Orientation | <001>, <011>, <111>, custom |
| Crystal Diameter | 10 mm to 50 mm |
| Thickness | 0.2 mm to 2 mm (custom available) |
| Surface Finish | Optical polish (10-5 scratch/dig) |
| Surface Flatness | λ/8 or better @ 632.8 nm |
| Parallelism | <10 arc seconds |
| Dielectric Loss (tanδ) | <0.005 |
| Electromechanical Coupling (k₃₃) | >0.9 |
| Piezoelectric Coefficient (d₃₃) | >1500 pC/N |
| Custom Coatings | Available on request (electrodes, AR coatings) |
Available Sizes and Customization:
- Wafer Sizes: 10 mm, 20 mm, 25 mm, 50 mm diameter, custom
- Thicknesses: 200 μm, 500 μm, 1 mm, 2 mm, custom
- Polish Types:
- Single-side polished (SSP)
- Double-side polished (DSP)
- Custom Orientation Accuracy: ±0.5°
- Electrode Options: Au, Pt, Cr/Au sputtered electrodes available
- Composite Options: PMN-PT single crystals bonded on Si or glass substrates for specific applications
- Special Composition Ranges: Available on request to tune Curie temperature, piezoelectric response, etc.
Quality Assurance:
All PMN-PT crystals are manufactured under rigorous quality control procedures, including:
- X-ray diffraction (XRD) to verify crystal orientation and quality
- Dielectric and piezoelectric property testing at multiple frequencies
- Surface roughness and flatness inspection using interferometry
- Microscopic surface inspection (high magnification)
- Cleanroom packaging (Class 100) to avoid contamination
- Full documentation (Certificate of Conformance, property test reports)
Why Choose Our PMN-PT Crystals?
- High-quality single crystal growth technology
- Exceptional electromechanical and piezoelectric performance
- Customizable size, orientation, and electrode options
- Rapid delivery and competitive pricing
- Professional technical support for device design and prototyping
- Proven track record supplying for medical, aerospace, and research institutions
Ordering & Contact Information:
We offer flexible MOQ (Minimum Order Quantity) and competitive pricing. Our substrates are packaged in Class 100 cleanroom environments and shipped worldwide. For custom orders or technical inquiries, please contact us for a detailed consultation!
