northwestern university 04-20-04 selected zno properties - molecular mass 81.389 - specific gravity...
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![Page 1: Northwestern University 04-20-04 Selected ZnO Properties - Molecular mass 81.389 - Specific gravity at room temp. 5.642 g/cm3 - Point group 6mm (Wurtzite)](https://reader035.vdocument.in/reader035/viewer/2022070418/5697bfb81a28abf838c9f595/html5/thumbnails/1.jpg)
Northwestern University 04-20-04
Selected ZnO Properties
- Point group 6mm (Wurtzite)- Lattice constants at room temp. a=3.250, c=5.205
- Melting point 2250 K
- a-axis direction 4.75
- c-axis direction 2.92
- Electron mass 0.28
- Hole mass 1.8- Bandgap energy at room temp. 3.37 eV- Exciton binding energy 60 meV
Resistivity depends on dopent. Direct bandgap
For intrinsic thin films=1500 cm perpendicular to substrate~109 cm parallel to substrate
-Specific gravity at room temp. 5.642 g/cm3
Single crystal=1-10 cm
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Northwestern University 04-20-04
ZnO structure
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Northwestern University 04-20-04
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Northwestern University 04-20-04
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Northwestern University 04-20-04
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Northwestern University 04-20-04
AlB2 ??
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Northwestern University 04-20-04
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Northwestern University 04-20-04
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Northwestern University 04-20-04
InAs
Crystal structure Zinc Blende
Energy Gap 0.354 eV
Intrinsic carrier concentration 1·1015 cm-3
Intrinsic resistivity 0.16 Ω·cm
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Northwestern University 04-20-04
InAs Nanowire
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Northwestern University 04-20-04
InAs1
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Northwestern University 04-20-04
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Northwestern University 04-20-04
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Northwestern University 04-20-04
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Northwestern University 04-20-04
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Northwestern University 04-20-04