Germanium Substrate For Solar Cell -Powerway Wafer
PAM-XIAMEN is a worldwide manufacturer of single crystal Germanium wafer ( Ge wafer ) and single crystal Ge ingot , we have a strong advantage in providing Ge wafer for micro-electronics and opto-electronics industry in diameter range from 2 inch to 6 inch . Germanium wafer is an elemental and popular semiconductor material, due to its excellent crystallographic properties and unique electric properties, Germanium wafer is widely used in Sensor, Solar cell and Infrared optics applications. PAM-XIAMEN can provide low dislocation and epi ready Germanium wafers to meet your unique germanium needs. Germanium wafer is produced as per SEMI. standard and packed in standard cassette with vacuum sealed in clean room environment , with a good quality control system , PAM-XIAMEN is dedicated to providing clean and high quality Germanium wafer products. PAM-XIAMEN can offer both electronics grade and IR grade Ge wafer, please contact us for more Ge product information
Properties Of Germanium Substrate/Window
| Thermal properties: |
| Thermal Expansion |
5.9 x 10-6 °C -1 @ 300K |
| Melting Point |
937°C |
| Thermal diffusivity |
0.36 cm2s-1 |
| Thermal conductivity |
0.58 W cm-1 °C-1 |
| Specific heat |
0.31 J g-1 °C-1 |
| Mechanical properties: |
| Young Modulus |
10.3x1011 dyn cm-2 @ 300K |
| Shear Modulus |
4.1x 1011 dyn cm-2 |
| Knoop Hardness |
780 kg mm-2 |
| Poisson constant |
0.26 |
| Electrical properties: |
| Di-electric constant |
16.2 |
| Resisitivity |
9.0 ohm cm |
| Optical properties: |
| Transmission |
2 - 14μm fino a circa 45° |
| Refractive Index |
4.025 @ 4μm |
| 4.005 @ 10μm |
| 4 inch Ge wafer Specification |
for Solar Cells |
|
| Doping |
P |
|
| Doping substances |
Ge-Ga |
|
| Diameter |
100±0.25 mm |
|
| Orientation |
(100) 9° off toward <111>+/-0.5 |
| Off-orientation tilt angle |
N/A |
|
| Primary Flat Orientation |
N/A |
|
| Primary Flat Length |
32±1 |
mm |
| Secondary Flat Orientation |
N/A |
|
| Secondary Flat Length |
N/A |
mm |
| cc |
(0.26-2.24)E18 |
/c.c |
| Resistivity |
(0.74-2.81)E-2 |
ohm.cm |
| Electron Mobility |
382-865 |
cm2/v.s. |
| EPD |
<300 |
/cm2 |
| Laser Mark |
N/A |
|
| Thickness |
175±10 |
μm |
| TTV |
＜15 |
μm |
| TIR |
N/A |
μm |
| BOW |
<10 |
μm |
| Warp |
＜10 |
μm |
| Front face |
Polished |
|
| Back face |
Ground |
|
What Are the Properties of Germanium Wafers?
Germanium wafers have unique properties that make them a very appealing semiconductor. Ge wafers are mechanically strong with a low weight. These wafers also posses the ability to be produced with a diameter as large as 300 mm.
What Are Ge Wafer Applications?
Germanium wafers are used in numerous applications thanks to its excellent crystallographic properties and unique electric properties. Some specific germanium wafer uses include space solar cells, terrestrial solar cells (CPV), sensors, infrared optics, high brightness LEDS, and many other semiconductor applications.
Are You Looking for Ge Wafer?
No matter the project or usage, we feature some of good quality germanium in our germanium wafers. Enquiry today to learn more about how we can get you germanium wafers for your next project.
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Germanium Substrate For Solar Cell -Powerway Wafer Images
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