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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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ZnO structure

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AlB2 ??

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InAs

Crystal structure Zinc Blende

Energy Gap 0.354 eV

Intrinsic carrier concentration 1·1015 cm-3

Intrinsic resistivity 0.16 Ω·cm

Northwestern University 04-20-04

InAs Nanowire

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InAs1

2

3

4

5

6

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Northwestern University 04-20-04

Northwestern University 04-20-04