Description of Lithium Gallate (LiGaO2) Crystal Substrates
Lithium gallate (LiGaO2) is a wide-band-gap semiconductor with an optical gap greater than 5.3 eV. When alloyed with ZnO, this material offers broad functionality for optical devices that generate, detect, and process light across much of the ultraviolet spectral region.

Specifications of Lithium Gallate (LiGaO2) Crystal Substrates
Substrate
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LiGaO2 substrate
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Growth method
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Czochralski method
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Crystal Structure
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Orthogonal system
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Lattice constant
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a=5.406 Å b=5.012 Å c=6.379 Å
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Melting point:
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1600 °C
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Density:
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4.18g/cm3
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Mohs hardness
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7.5
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Orientation
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<100>, <001>
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Standard Size
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Dia30 x 0.5mm, 20x20x0.5mm, 10x10x0.5mm, 5x5x0.5mm
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Polishing
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Fine ground, One side polished or Two side polished
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Applications of Lithium Gallate (LiGaO2) Crystal Substrates
Lithium gallate (LiGaO2) and lithium aluminate (LiAlO2) single crystal are the best substrate materials for matching with GaN epitaxial films. GaN films are the basis for the current production of blue, violet, ultraviolet light-emitting diodes, and solid-state white light sources.
Package of Lithium Gallate (LiGaO2) Crystal Substrates
Lithium Gallate (LiGaO2) Crystal Substrates are meticulously packaged with anti-static protective layers, moisture-resistant sealing, and shock-absorbing materials to ensure safe transit and storage. Each package includes detailed labeling and documentation to meet international shipping standards.
FAQs
Q1. What are the key advantages of LiGaO2 Crystal Substrates?
LiGaO2 substrates offer high thermal stability, low lattice mismatch for epitaxial growth, and excellent transparency in the UV and visible spectrum, making them ideal for advanced electronic and optical applications.
Q2. Are Lithium Gallate substrates suitable for epitaxial growth?
Yes, LiGaO2 substrates are highly suitable for epitaxial growth, especially for materials like GaN, due to their low lattice mismatch and thermal compatibility.
Q3. How does Lithium Gallate compare to other substrate materials like Sapphire or GaN?
Lithium Gallate offers unique properties, such as low lattice mismatch with GaN, making it an excellent alternative for specific applications where thermal and structural compatibility are critical.