Nd:SrTiO3 Crystals and Substrates

Kingwin Optics offers Neodymium-doped Strontium Titanate (Nd:SrTiO3) single crystal substrates with a nominal Nd concentration of 0.05%. These substrates share a similar structure to pure SrTiO3 crystals, exhibiting excellent lattice matching with perovskite structure materials. The doping of neodymium introduces unique electrical and optical properties, making Nd:SrTiO3 an attractive material for various applications.

Specification:

Main performance parameters
crystal system	Cubic crystal system
Growth method	Flame method
Lattice constant	a=3.905Å
Neodymium-doped concentration (Nd%)	0.05％
Melting point (°C)	2080
density	5.122（g/cm3）
hardness	6-6.5（mohs）
Coefficient of thermal expansion (/°C).	9.4×10-6
Dielectric constant	ε=5.20
Chemical stability	Does not dissolve in water
Coefficient of thermal expansion	10.4×10-6/k
Tangent loss	~5×10-4（300k） ~3×10-4（77k）
size	10×3m、10×5m、10×10mm、15×15mm、20×15mm According to customer needs, special orientation and size of substrates can be customized
thickness	0.5mm、1.0mm
Dimensional tolerances	<±0.1mm
Thickness tolerances	<±0.015mm, special requirements can reach <±0.005mm)
polished	Single-sided or double-sided
Plane orientation accuracy	±0.5°
Edge orientation accuracy	2° (within 1° for special requirements)
orientation	< 100 >, < 110 >, < 111 >, etc
wrap	Class 100 clean bag, Class 1000 clean room

 

Features:

• Excellent Lattice Matching: Nd:SrTiO3 has a similar crystal structure to SrTiO3, ensuring good lattice matching with perovskite structure materials, which is crucial for epitaxial growth and device performance.
• Customizable Nd Concentration: Kingwin Optics provides Nd:SrTiO3 substrates with a precise Nd concentration of 0.05%, allowing for tailored electrical and optical properties to meet specific application requirements.
• Enhanced Electrical Properties: The doping of neodymium introduces conductivity to the SrTiO3 lattice, enhancing the electrical properties of the material and making it suitable for electronic and optoelectronic applications.
• Structural Stability: Nd:SrTiO3 maintains the structural stability of SrTiO3, ensuring reliability and durability in various environments and applications.
• Optical Transparency: The single crystal nature of Nd:SrTiO3 substrates ensures optical transparency, making them suitable for optical applications where transparency is essential.
• High-Quality Substrates: Kingwin Optics’ Nd:SrTiO3 substrates are manufactured with high precision and quality control, ensuring consistent performance and reproducibility in research and industrial applications.

Applications:

1.Electronic Devices:

• Conductive Substrates: Nd:SrTiO3 substrates with tailored conductivity can be used as conductive substrates in electronic devices, providing both structural support and electrical conductivity.
• Capacitors: The high dielectric constant and low loss of Nd:SrTiO3 make it suitable for use in high-performance capacitors.

2.Thin Film Growth:

• Epitaxial Growth: The good lattice matching between Nd:SrTiO3 and perovskite structure materials makes it an ideal substrate for epitaxial growth of high-quality thin films, including superconducting and ferroelectric films.
• Template for Oxide Films: Nd:SrTiO3 can serve as a template for the growth of oxide thin films, enabling the study and development of new oxide-based materials and devices.

3.Research and Development:

• Material Science: Nd:SrTiO3 is of great interest to material scientists due to its unique combination of electrical, optical, and structural properties, making it an ideal candidate for fundamental research.
• Condensed Matter Physics: The conductivity and structural properties of Nd:SrTiO3 make it a valuable tool for studying condensed matter phenomena, such as superconductivity and magnetism.

Kingwin Optics’ Neodymium-doped Strontium Titanate (Nd:SrTiO3) single crystal substrates offer a unique combination of electrical, optical, and structural properties, making them suitable for various applications in electronic devices, thin film growth, optical systems, and research and development. With precise control over the Nd concentration and high-quality manufacturing, Kingwin Optics’ Nd:SrTiO3 substrates provide a reliable and versatile platform for advanced materials research and device development.