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808822

Sigma-Aldrich

Tungsten diselenide

Crystal, 99.995%

Sinonimo/i:

Tungsten (IV) selenide, Tungsten selenide

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About This Item

Formula condensata:
WSe2
Numero CAS:
12067-46-8
Peso molecolare:
341.76
Numero MDL:
MFCD00049703
Codice UNSPSC:
26111700
ID PubChem:
329769125
NACRES:
NA.23

Livello qualitativo

100

Descrizione

Electrical properties: Semiconductor, p-type

Saggio

99.995%

Forma fisica

crystals

Lungh. × Largh. × Alt.

0.5 cm × 0.5 cm × 0.1-0.15 mm, typical size, some variation in dimensions may occur with different batches

primary crystallite size

~10 mm (hexagonal)

Stringa SMILE

[Se]=[W]=[Se]

InChI

1S/2Se.W
ROUIDRHELGULJS-UHFFFAOYSA-N

Applicazioni

The two dimensional layered inorganic nanomaterials have drawn significant attention recently owing to their thickness dependent physical and chemical properties. They find applications in photocatalysis, phtotovoltaics, gas sensing, lithium ion batteries, field effect transistors, spintronics etc. Transition metal dischalcogenides represent an important class of inorganic 2D materials having the aforementioned applications.

Nota sulla preparazione

Store under nitrogen atmosphere.

Avvertenze

Danger

Indicazioni di pericolo

H301 + H331,H373,H410

Classi di pericolo

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

Codice della classe di stoccaggio

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

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

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Certificati d'analisi (COA)

Lot/Batch Number
MKCN8561
MKCL6353
MKBX7562V

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Zilong Wu et al.
Advanced materials (Deerfield Beach, Fla.), 31(49), e1904132-e1904132 (2019-10-18)
Spin-dependent contrasting phenomena at K and K' valleys in monolayer semiconductors have led to addressable valley degree of freedom, which is the cornerstone for emerging valleytronic applications in information storage and processing. Tunable and active modulation of valley dynamics in
Sonia Biccai et al.
ACS nano, 13(6), 6845-6855 (2019-06-15)
Nanocomposite strain sensors, particularly those consisting of polymer-graphene composites, are increasingly common and are of great interest in the area of wearable sensors. In such sensors, application of strain yields an increase in resistance due to the effect of deformation
Exploration of Nanostructured Functional Materials Based on Hybridization of Inorganic 2D Nanosheets.
Gunjakar JL, et al.
The Journal of Physical Chemistry C, 118, 3847-3863 (2014)
Sheneve Z Butler et al.
ACS nano, 7(4), 2898-2926 (2013-03-08)
Graphene's success has shown that it is possible to create stable, single and few-atom-thick layers of van der Waals materials, and also that these materials can exhibit fascinating and technologically useful properties. Here we review the state-of-the-art of 2D materials
The super materials that could trump graphene.
Elizabeth Gibney
Nature, 522(7556), 274-276 (2015-06-19)

Articoli

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Professor Ebrahimi and Professor Robinson (Pennsylvania State University, USA) summarize recent advances in the synthesis of these 2D materials, resulting material properties, and related applications in biosensing of neurotransmitters, metabolites, proteins, nucleic acids, bacterial cells, and heavy metals.

Recent Advances in Scalable Synthesis and Processing of Two-Dimensional Materials

Recent Advances in Scalable Synthesis and Processing of Two-Dimensional Materials

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For several decades, the need for an environmentally sustainable and commercially viable source of energy has driven extensive research aimed at achieving high efficiency power generation systems that can be manufactured at low cost.

Il team dei nostri ricercatori vanta grande esperienza in tutte le aree della ricerca quali Life Science, scienza dei materiali, sintesi chimica, cromatografia, discipline analitiche, ecc..

Contatta l'Assistenza Tecnica.