32 72.630
Ge
Germanium

Germanium , Ge

Germanium is a chemical element with the symbol Ge and atomic number 32.

This lustrous, hard, silver-white metalloid is chemically similar to tin. Germanium forms a large number of organometallic compounds and is an important semiconductor material used in transistors. It is named after the country of Germany.

 

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G3-5001-M

Ge Pieces 3-6mm 99.999% Pure

Germanium

G3-5001-M2

Ge Pieces 1-4mm 99.999% Pure

Germanium Metal

G3-5007-M

Ge0 Pieces 3-12mm (sintered) 99.999% Pure

Germanium Oxide

G3-5008-M

GeSe Pieces 6mm & smaller 99.999% Pure

Germanium Selenide

UN3823 6.1 PGIII

G3-5009-M

GeSe2 Pieces 6mm & smaller 99.999% Pure

Germanium Selenide

UN3823 6.1 PGIII

G3-5010-M

GeTe Pieces 6mm & smaller 99.999% Pure

Germanium Telluride

UN3288 6.1 PGIII

G3-5011-M

GeTe Pieces 6mm & smaller 99.999% Pure

Germanium Telluride

UN3288 6.1 PGIII

G3-5013-M

Ge Pieces 0.5-3mm 99.999% Pure

Germanium Metal

G3-10002-P

GeTe Powder -100 Mesh 99.999% Pure

Germanium Telluride

NOS 6.1, UN3288 PG III, TOXIC

G3-10005-P

Ge3N4 -200 Mesh 99.9% Pure

Germanium Nitride

G3-10006-P

GeO2 -325 Mesh (typ. =10 microns) 99.9999% Pure

Germanium Oxide

G3-10007-P

GeO2 -325 Mesh (typ. =10 microns) 99.999% Pure

Germanium Oxide

G3-10008-P

GeS -20 Mesh 99.95% Pure

Germanium Sulphide

G3-10010-P

GeTe Powder 99.999% Pure

Germanium Selenide

6.1, UN3288, PGlll

G3-10014-P

GeO2 -200 Mesh 99.999% Pure

Germanium (IV) oxide

G3-10015-P

GeSe Powder Particle Size <100 Microns 99% min Pure

Germanium Selenium

UN3823 6.1 PGIII

G3-10016-P

GeTe Powder Particle size <100 Microns 99% min Pure

Germanium Tellurium

UN3288 6.1 PGIII

G3-2000-R1

Ge Rod 10mm dia. x 50mm long 99.9999% Pure

Germanium

G3-9000-D

Germanium Ge, Available purities 99.99% & 99.999%

G3-9001-D

Germanium-Antimony Ge-Sb,

Available in various ratios wt% or at%, Purity 99.99% & 99.999%

G3-9005-D

Germanium Telluride GeTe,

Available in various ratios wt% or at%, Purity 99.99% & 99.999%

G3-9006-D

Germanium-Antimony-Telluride GeSbTe,

Available in various ratios wt% or at%, Purity 99.99%, 99.999%

G3-9007-D

Germanium disulphide target GeS2, Purity 99.99%

G3-9008-D

Germanium selenide GeSe,

Available in various ratios wt% or at%, Purity 99.99% & 99.999%

G3-9009-D

Germanium-Antimony doped Indium GeSb - In doping,

Available in various ratios wt% or at%, Purity 99.999%

G3-9011-D

Germanium-Telluride doped with Indium,

Available in various ratios wt% or at%, Purity 99.99%

G3-9012-D

Germanium-Telluride doped with Carbon,

Available in various ratios wt% or at%, Purity 99.9%

G3-9013-D

Germanium Selenide Ge2Se3, Purity 99.999%

G3-9015-D

Germanium Phosphide GeP, Purity 99.999%

G3-9016-D

Germanium-Antimony-Selenium-Tellurium GeSbSeTe,

Available in various ratios wt% or at%, Purity 99.99%

G3-9017-D

Germanium-Tin GeSn,

Available in various ratios wt% or at%, Purity 99.99%

G3-9000-D26

Ge TRG 50.8mm dia. x 5mm Tk 99.999% Pure

Germanium

G3-9005-D1

GeTe TRG 50.8mm dia. x 3.18mm Tk 99.999% Pure

Germanium-Tellurium

G3-9005-D10

GeTe6 TRG 50.8mm dia. x 3.18mm Tk 99.999% Pure

Made from 99.999 GeTe + 99.99% Te Powder

Germanium-Tellurium

G3-9005-D13

GeTe TRG 76.2mm dia. x 3.18mm Tk 99.99% Pure

Germanium-Tellurium

G3-9005-D9

GeTe TRG 50.8mm dia. x 3.18mm Tk 99.99% Pure

Germanium-Tellurium

G3-9007-D1

GeS2 TRG 76.2mm dia. x 3mm Tk 99.99% Pure

Indium bonded to Copper backing plate 76.2mm dia. x 2mm Tk

Germanium disulphide

G3-9007-D2

GeS2 TRG 50.8mm dia. x 3.18mm Tk 99.99% Pure

Germanium disulphide

G3-9008-D1

GeSe TRG 50.8mm dia. x 6.35mm Tk 99.999% Pure

Germanium-Selenide Target

G3-9008-D3

GeSe2 TRG 76.2mm dia. x 3.18mm Tk 99.99% Pure

Germanium-Selenide

G3-9008-D4

GeSe2 TRG 50.8mm dia. x 6mm Tk 99.99% Pure

Germanium-Selenide

G3-9008-D5

GeSe TRG 50.8mm dia. x 6mmTk 99.99% Pure

Germanium-Selenide

G3-9008-D6

GeSe4 TRG 76.2mm dia. x 6mm Tk 99.99% Pure

Germanium-Selenium

GE-ST-1-3-5N

Ge TRG 25.4mm dia. x 3mm Thick 99.999% Pure

Germanium

$52.80/PCS
0 PCS in stock
Select Qty
GE-ST-1-6-5N

Ge TRG 25.4mm dia. x 6mm Tk 99.999% Pure

Germanium

GE-ST-2-3-5N

Ge TRG 50.8mm dia. x 3mm Tk 99.999% Pure

Germanium

$105.60/PCS
2 PCS in stock
Select Qty
GE-ST-2-6-5N

Ge TRG 50.8mm dia. x 6mm Thick 99.999% Pure

Germanium

GE-ST-3-3-5N

Ge TRG 76.2mm dia. x 3mm Tk 99.999% Pure

Germanium

GE-ST-3-6-5N

Ge TRG 76.2mm dia. x 6mm Tk 99.999% Pure

Germanium

GE-ST-4-3-5N

Ge TRG 101.6mm dia. x 3mm Tk 99.999% Pure

Germanium

GE-ST-4-6-5N

Ge TRG 101.6mm dia. x 6.35mm Tk 99.999% Pure

Germanium

CRY-Ge-N/Sb

Germanium Wafer Ge

N type, Sb doped Ge wafer 

More Info
CRY-Ge-P/Ga

Germanium Wafer Ge

P type Ga doped Ge wafer

More Info
CRY-Ge-UD

Germanium Wafer Ge

Intrinsic, undoped 

More Info

Germanium is a hard, grayish-white element that has a metallic luster and the same crystal structure as diamond. Germanium is a semiconductor. In its pure state, this metalloid is crystalline, brittle and retains its lustre in air at room temperature. Zone refining techniques have led to the production of crystalline germanium for semiconductors that have an impurity of only one part in 1010. Along with gallium, bismuth, antimony and water, it is one of the few substances that expands as it solidifies (i.e. freezes) from its molten state. Germanium releases high energy electrons if bombarded with alpha particles and is used in combination with radon for the nuclear batteries patented by Bruce Perreault.

Symbol Ge
Atomic Number 32
No. of naturally occurring isotopes 5
Atomic weight 72.59(+/-3)
Electronic configuration [Ar]3d10
Covalent radius/pm IV 122.3
Ionic radius(6-coordinate)/pm IV 53
Ionic radius(6-coordinate)/pm II 73
Electrical resistivity
(20°C)/μohm cm ~47
Electronegativity χ 1.8
Density (20°C)/gcm-3 5.323
Melting point /°C 945
Boiling point /°C 2850
ΔHvap/kJmol-1 36.8
ΔHmonoatomic gas/kJmol-1 328
ΔHf(monoatomic gas)/kJmol-1 283
Band gap Eg/kJ mol-1 64.2
Ionization energy/kJmol-1 I 761.2
Ionization energy/kJmol-1 II 1537
Ionization energy/kJmol-1 III 3301.2
Ionization energy/kJmol-1 IV 4409.4
Temperature (oC) @Vap. Pressure
10-8 Torr 812
10-6 Torr 957
10-4 Torr 1167
Techniques
Electron Beam Excellent
Crucible Quartz & Al2O3
Coil -
Boat Tungsten, Graphite & Tantalum
Remarks
Excellent films from EB sources. Use .040” W. n= 4.01.