SrLaAlO4 Crystal Substrate Description
SrLaAlO4 Crystal Substrate l is a promising substrate material for high Tc superconducting film. It has a good lattice match with perovskite structure superconductors, and a low dielectric constant suitable for microwave or high frequency applications. It features a stable structure with much fewer defects than SrTiO3.
SrLaAlO4 Crystal Substrate Specifications
Purity
|
99.99%
|
Color
|
Light Brown
|
Crystal Structure
|
Tetragonal
|
Lattice Constant
|
a = b = 3.756 A, C = 12.636 A
|
Density
|
5.92 g / cc
|
Melt Point
|
1650℃
|
Thermal Expansion Coeff.
|
12 ppm / ℃
|
Dielectric Constant
|
16.81 at a axis 20.02 at c axis
|
Comparison of SrTiO3 - LaAlO3 - SrLaAlO3
Crystal
|
SrTiO3
|
LaAlO3
|
SrLaAlO4
|
Structure
|
Cubic
|
Rhombohedral (25℃)
Cubic (> 435℃)
|
Tetragonal
|
Lattice Constant
|
a=3.905
|
a=3.821 A
|
a=b=3.756 A, c= 12.636
|
mismatch to YBCO (a=3.9)
|
+0.12%
|
-2.0%
|
-3.7%
|
Dielectric Constant
|
~300
|
~ 25
|
~ 17
|
Grown Method
|
Vernuil
|
CZ
|
CZ
|
Thermal expansion (x10-6/℃)
|
10.4
|
10
|
12
|
Melting point
|
2080℃
|
2080℃
|
1650℃
|
Density g/cm3
|
5.175
|
6.52
|
5.92
|
Max. Crystal Size
|
30 mm dia.
|
75 mm dia
|
35 mm dia
|
SrLaAlO4 Crystal Substrate Application
SrLaAlO4 crystal substrates are used in a variety of industries due to their excellent properties:
- Semiconductors: Used as a substrate for the growth of epitaxial layers in semiconductor devices, particularly in high-performance electronics.
- Optoelectronics: Ideal for applications like LEDs, lasers, and photonics, where optical transparency and thermal stability are required.
- Thin Film Deposition: SrLaAlO4 is often used as a base for thin-film deposition due to its smooth surface and stable characteristics.
- High-Temperature Applications: This substrate can be used in high-temperature sensor devices and power electronics, where thermal management is critical.
- Sensor Devices: SrLaAlO4 substrates are used in sensors for their mechanical properties and ability to operate at elevated temperatures.
- Material Research: Used in material science research to study the properties of thin films and heterostructures.
SrLaAlO4 Crystal Substrate Packaging
Our SrLaAlO4 Crystal Substrate is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
FAQs
Q1 What is the cost of SrLaAlO4 Crystal Substrates?
The cost of SrLaAlO4 crystal substrates varies based on several factors:
- Size and thickness: Larger or thicker substrates generally cost more.
- Purity and quality: Higher purity substrates with fewer defects tend to be more expensive.
- Quantity: Bulk orders may reduce the cost per unit.
- Customization: Custom specifications, such as specific surface finishes or doping, can increase the price. For an accurate quote, it is advisable to contact suppliers based on the specific requirements.
Q2 Can SrLaAlO4 Crystal Substrates be customized?
Yes, SrLaAlO4 crystal substrates can be customized in several ways:
- Surface finish: The surface can be polished or etched for specific applications, such as thin film deposition or epitaxial growth.
- Doping: The substrate can be doped with other elements to modify its electrical or optical properties for particular applications.
- Size and shape: Custom sizes, thicknesses, and shapes can be manufactured based on the specific needs of the application.
- Thickness: The thickness of the substrate can be adjusted according to the requirements of the epitaxial layer or device being produced.
Q3 What are the advantages of using SrLaAlO4 Crystal Substrates?
The main advantages of SrLaAlO4 crystal substrates include:
- High thermal stability: Ideal for high-performance devices that require temperature resistance.
- Mechanical strength: Provides a stable and durable base for device fabrication.
- Optical transparency: Suitable for use in optoelectronic and photonics applications.
- Good dielectric properties: Makes it an excellent choice for electronic devices requiring insulation.
- Customizability: Substrates can be customized to meet the specific requirements of a wide range of applications.