Germanium monocrystalline

 

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.

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 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