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Zinc Selenide, ZnSe
Categories: Ceramic; Sulfide/Chalcogenide; Other Engineering Material; Semiconductor

Key Words: Chalcogenide; Semiconductor; Selenium
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Physical PropertiesMetricEnglishComments
Density 5.42 g/cc0.196 lb/in³
a Lattice Constant 5.6676 Å5.6676 Å
Formula Units/Cell (Z) 44
Molecular Weight 144.35 g/mol144.35 g/mol
 
Mechanical PropertiesMetricEnglishComments
Knoop Microhardness 13501350N/mm²
 
Electrical PropertiesMetricEnglishComments
Dielectric Constant 9.29.2
Band Gap 2.58 eV2.58 eV
Electron Mobility, cm²/V-s 540540
Hole Mobility, cm²/V-s 2828
 
Thermal PropertiesMetricEnglishComments
CTE, linear 7.20 µm/m-°C
@Temperature 20.0 °C
4.00 µin/in-°F
@Temperature 68.0 °F
Specific Heat Capacity 0.339 J/g-°C0.0810 BTU/lb-°F
Thermal Conductivity 14.0 W/m-K97.2 BTU-in/hr-ft²-°F
Melting Point 1517 °C2763 °F
Heat of Formation 422 kJ/mol422 kJ/mol
Debye Temperature 127 °C261 °F
 
Optical PropertiesMetricEnglishComments
Refractive Index 2.892.89
IR Transmittance 70 %70 %cutoff 14 µm.
 
Descriptive Properties
CAS Number1315-09-9
ColorYellow red
Crystal StructureCubicSphalerite Structure - Space Group F(-4)3m

References for this datasheet.

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DSEN71 / 3080

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