Gallium selenide's application

Gallium selenide (GaSe) is a group XIII post-transitional mono-chalcogenide. Like transition metal dichalcogenides (TMDCs), it is a layered semiconductor. In gallium selenide, each individual layer consists of covalently-bonded stacks with sheets of Se ions on the top and bottom and two sheets of Ga ions in the middle.

As with other layered 2D structures like graphene, adjacent GaSe layers are bound by the weak van der Waals force. This makes it possible to peel the structure by mechanical or liquid exfoliation. The resultant ultra-thin few or single layer 2D gallium selenide nanosheets or nanoparticles have well-known nonlinear optical properties and a range of applications in areas including integrated optics, optical information communications and biology.

Gallium gelenide can be used in the preparation of mono and few-layer GaSe, nanosheets and nanoparticles. Due to its semiconducting and non-linear optical properties, it has a wide range of largely under-exploited applications.

The applications of gallium selenide include:

1. Solar cells

2. Battery technology

3. Electronic devices

4. Phototransistors

5. Field-effect transistors

6. LEDs

7. Optical communications

8. Image mapping

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