SE2799 Gallium (II) Selenide (GaSe) (CAS 12024-11-2)

Catalog No. SE2799
Molecular Formula GaSe
Appearance Dark brown powder
Purity 4N-5N
Synonyms Gallium monoselenide

Gallium (II) Selenide (GaSe) (CAS 12024-11-2) is a semiconductor with an indirect bandgap of ~2.1 eV. Stanford Advanced Materials (SAM) is your one-stop platform to find gallium products for sale in a variety of forms.

Related products:Manganese (II) Selenide Powder, MnSe Powder, Tin Selenide Powder, SnSe Powder, Tungsten (IV) Selenide Powder, WSe2 Powder, Gallium (III) Selenide (Ga2Se3)

Gallium (II) Selenide (GaSe) (CAS 12024-11-2) Description

Gallium (II) Selenide (GaSe) (CAS 12024-11-2) is a semiconductor with an indirect bandgap of ~2.1 eV. It has a hexagonal layer structure, similar to that of GaS. It is a photoconductor, a second harmonic generation crystal in nonlinear optics, and has been used as a far-infrared conversion material at 14–31 THz and above.

Gallium (II) Selenide (GaSe) (CAS 12024-11-2) Specifications

Product Name

Gallium (II) Selenide (GaSe) (CAS 12024-11-2) powder

CAS No.

12024-11-2

Purity

4N-5N

Molecular Weight

148.7

Density

5.03 g/cm3


Gallium (II) Selenide (GaSe) (CAS 12024-11-2)
Applications

Gallium (II) Selenide (GaSe) (CAS 12024-11-2) crystals show great promise as a nonlinear optical material and photoconductor. Non-linear optical materials are used in the frequency conversion of laser light. One original problem with using gallium selenide in optics is that it is easily broken along cleavage lines and thus it can be hard to cut for practical application.

It has been found, however, that doping the crystals with indium greatly enhances their structural strength and makes their application much more practical. Single layers of gallium selenide are dynamically stable two-dimensional semiconductors, in which the valence band has an inverted Mexican-hat shape, leading to a Lifshitz transition as the hole-doping is increased

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