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.

Send request

 Quality parameters

(measurements) 

Mono for solar cells

(SC-Solar Cell)

Mono- IR

Mono of special application

Orientation

[111],[100],
100+6->111]

[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