Germaniumtellurid

Bezeichnung:Germaniumtellurid

CAS-Nr12025-39-7

Englisch Name:Germanium telluride

CBNumberCB9110070

SummenformelGeTe

Molgewicht200.24

MOL-Datei12025-39-7.mol

Synonyma

Germaniumtellurid

Germaniumtellurid physikalisch-chemischer Eigenschaften

Schmelzpunkt	725 °C(lit.)
Dichte	6.14 g/mL at 25 °C(lit.)
Löslichkeit	insoluble in H2O; soluble in concentrated HNO 3
Aggregatzustand	Powder
Wichte	6.2
Farbe	Black
Wasserlöslichkeit	Insoluble in water.
Crystal Structure	Cubic, Halite Structure - Space Group Fm3m
Expositionsgrenzwerte	ACGIH: TWA 0.1 mg/m3 NIOSH: IDLH 25 mg/m3; TWA 0.1 mg/m3
CAS Datenbank	12025-39-7(CAS DataBase Reference)
EPA chemische Informationen	Germanium telluride (GeTe) (12025-39-7)

Sicherheit

R-Sätze:	22
S-Sätze:	36
WGK Germany	3
TSCA	Yes
HS Code	2842901090

Gefahreninformationscode (GHS)

Germanium telluride Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
S-Sätze Betriebsanweisung:
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
Germanium telluride (GeTe) is an efficient semiconductor of germanium and tellurium and is a phase-change material. It is known to exhibit four different structural states: three at room-temperature (one amorphous and two crystalline, α and γ) and one at high temperature (crystalline, β ). It shows semimetallic conduction and ferroelectric behaviour.
Verwenden
Germanium telluride (GeTe) is a promising material for thermoelectric applications. Nanostructuring; non-stoichiometric defects; doping and alloying with other materials further enhances its thermoelectric performance.
GeTe is also an important semiconductor material prototypical phase change material of high interest for applications in optical and electronic non-volatile memories.
synthetische
Germanium telluride is produced by heating Ge (less resistivity) and Te (99.998%) to their melting points in an evacuated quartz tube. single crystals can be obtained using the zone melting method.
Application
Germanium telluride is a promising thermoelectric compound with uses in doping, alloying, and nanostructuring, non-stoichiometric defects. It is also an important semiconductor that can act as a low temperature superconductor when doped. GeTe is also an important semiconductor material prototypical phase change material of high interest for applications in optical and electronic non-volatile memories.
Allgemeine Beschreibung
This product has been enhanced for energy efficiency.

Germanium telluride Upstream-Materialien And Downstream Produkte

Germaniumtellurid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

12025-39-7, Germanium telluride Verwandte Suche:

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