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Structure
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Wurtzite (Hexagonal)
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Density:
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4.825 g/ cm3
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Young’s Modulus:
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45 GPa
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Coef. of Thermal Expansion (500 K):
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α 1=6.26×10-6/K;
α 3=3.5×10-6/K
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Specific Heat:
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0.47 J/gK
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Thermal conductivity (at 25 °C):
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0.2 W/cmK
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Max. Transmittance (λ =2.5-15 μm):
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≥ 71 %
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Absorption Coef. (λ =10.6 μm):
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≤ 0.007 cm-1 (including 2 surfaces)
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Refractive index (λ =10.6 μm):
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2.2245 (no), 2.2376 (ne)
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Specific resistivity
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a). low: < 1 Ohm*cm
b). high: > about 10^11 Ohm*cm
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Max. crystal diameter/length:
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ø 40×30 mm
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