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901478

Sigma-Aldrich

Tungsten selenide

single crystalline monolayer flakes on SiO2/Si

Synonym(s):
Monolayer tungsten selenide, WSe2 flakes
Linear Formula:
WSe2
NACRES:
NA.23

Quality Level

form

film

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Application

Owing to the thickness dependent physical and chemical properties, the two dimensional layered inorganic nanomaterials have drawn significant attention recently. They find applications in photocatalysis, phtotovoltaics, gas sensing, lithium ion batteries, field effect transistors, spintronics etc. Transition metal dichalcogenides represent an important class of inorganic 2D materials having aforementioned applications. The CVD grown monolayer films of MoS2, MoSe2, WS2 and WSe2 on insulating substrates such as SiO2 and sapphire are well suited for electronic and photovoltaic devices.

Caution

The material is air and moisture sensitive. Store under inert and moisture free condition.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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