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808822

Sigma-Aldrich

Tungsten diselenide

Crystal, 99.995%

Synonyme(s) :

Tungsten (IV) selenide, Tungsten selenide

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About This Item

Formule linéaire :
WSe2
Numéro CAS:
12067-46-8
Poids moléculaire :
341.76
Numéro MDL:
MFCD00049703
Code UNSPSC :
26111700
ID de substance PubChem :
329769125
Nomenclature NACRES :
NA.23

Niveau de qualité

100

Description

Electrical properties: Semiconductor, p-type

Pureté

99.995%

Forme

crystals

L × l × H

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)

Chaîne SMILES 

[Se]=[W]=[Se]

InChI

1S/2Se.W

Clé InChI

ROUIDRHELGULJS-UHFFFAOYSA-N

Application

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.

Notes préparatoires

Store under nitrogen atmosphere.

Pictogrammes

Skull and crossbonesHealth hazardEnvironment
GHS06,GHS08,GHS09

Mention d'avertissement

Danger

Mentions de danger

H301 + H331,H373,H410

Classification des risques

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

Code de la classe de stockage

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

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
MKCN8561
MKCL6353
MKBX7562V

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

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)

Articles

2D Materials Matter: A Perspective on Biosensing Applications

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

Recent Advances in Hybrid Halide Perovskites-based Solar Cells

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.

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

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