Germanium for solar application
Packing:
Hermetic polyethylene bag packed in the cartoon box, which are filled with protective material from damage.
Number and weight of the ingot are shown on the package.
|
Quality parameters (measurements) |
Mono for solar cells (SC-Solar Cell) |
Mono- IR |
Mono of special application |
|
Orientation |
[111],[100], |
[111] , [100] |
[111] , [110] |
|
Conductivity type |
N |
N |
N,P |
|
Dopant |
Sb |
Sb |
Sb,Ga,Au |
|
Resistivity (r), Ohm×сm |
As agreed |
Standard 5-40, other by customer request |
0.01-45 |
|
Density (EPD) см-2 |
< 5× 103 |
<105 |
<105 |
|
Linage |
not more than 1/3 diameter, sum of linage not more of 2 diameters |
|
|
|
Slips |
non |
|
|
| Diameter, mm | Till 105 | 7.5-400 | 20-35 |
| Length, mm | 60 min | 30 min | 40 min |
| Special requirements | As agreed | Optical characteristics according to requirements | Density, resistivity, life time and others – as agreed |
|
Atom Number |
32 |
|
Atom Weight |
72.6 |
|
Crystal Structure |
Diamond cubic |
| Grating Parameter, А |
5.657 |
|
Density (298 °К), g/cm3 |
5.323 |
|
Atomic Density , atoms/cm3 |
4.42 × 1022 |
|
Melting Temperature, °С |
937 |
|
Boiling Temperature,°С |
2830 |
| Specific Thermal Capacity (0-100°C), kal/g degree |
0.074 |
| Latent Heat of Fusion, kal/mol |
8100 |
|
Coefficient of Linear Thermal Expansion (293°К), cm/degr |
6.1 x 10-6 |
|
Mohs Hardness |
6 |
|
Band Gap, direct(300 °К), e. V |
0.67 |
|
Intrinsic Carriers Concentration (300 °К), cm -3 |
р, n= 2 * 1013 |
|
Intrinsic Drift Mobility ( 300°К), cm2 / v.s: electrons holes |
3800 1820 |
|
Diffusion Coefficient (300°К), cm2 / sec: electrones holes |
101 49 |
|
Intrinsic Resistivity (300°К), Оhm × сm |
47 |