Lithium Aluminate (LiAlO2) Crystal and Substrates-NORTH OPTICS-Laser Components, IR optics, Scintillators, Crystals wafers|A Leading Manufacturer Of Optical Components

Lithium Aluminate (LiAlO2) Crystal and Substrates

LiAlO2 remains stable in high-temperature reducing atmospheres, melting point of 1900℃

Provides LiAlO2 substrates up to 2‘ in diameter

Available in various sizes (mm) and diameters (Ф), thickness options of 0.5mm or 1.0mm, with orientations including <100> and <001>, and customization available upon request.

Excellent for III-V nitride thin film growth Inquire Us

Specifications:

Size(mm)	10×3, 10×5, 10×10, 15×15, 20×15, 20×20 Ф15, Ф20, Ф1″, Ф2″, Ф2.6″	Thickness	0.5mm,1.0mm
Orientation	<100>, <001>	Orientation Tolerance	±0.5°
Angle of Crystalline	Special size and orientation are available upon request	Redirection the Edge	2°(special in 1°)
Surface Roughness	≤5Å(5µm×5µm)	Polishing	SSP (single surface polished) or DSP (double surface polished)

Basic Properties:

Crystal Structure	M4	Lattice Constant	a=5.17 Å c=6.26 Å
Melt Point(℃)	1900	Density	2.62 g/cm³
Hardness	7.5(Mohs)	Color and Appearance	Transparent

Lithium Aluminate (LiAlO2) single crystal with a corundum structure is an exceptional optional as the substrate for III-V nitride thin films since the lattice mismatch between LiAlO2 and Gallium Nitride (GaN) is only 1.4%. LiAlO2 substrate exhibits high chemical stabilities to withstand high-temperature reducing atmosphere. Single-oriented GaN film can be grown on LiAlO2 substrates without using low-temperature buffer layers. Shanghai North Optics can provide LiAlO2 substrates up to 2” in diameter, with high surface roughness and clean packaging.

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