Skip to Content
Merck
CN

Key Documents

View All Documentation

808822

Tungsten diselenide

Crystal, 99.995%

Synonym(s):

Tungsten (IV) selenide, Tungsten selenide

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
WSe2
CAS Number:
12067-46-8
Molecular Weight:
341.76
NACRES:
NA.23
PubChem Substance ID:
329769125
UNSPSC Code:
26111700
MDL number:
MFCD00049703
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Quality Level

100

description

Electrical properties: Semiconductor, p-type

assay

99.995%

form

crystals

reaction suitability

core: tungsten

L × W × 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)

SMILES string

[Se]=[W]=[Se]

InChI

1S/2Se.W

InChI key

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.

Preparation Note

Store under nitrogen atmosphere.

signalword

Danger

Hazard Classifications

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

Storage Class

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

Regulatory Information

新产品

This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCT7333
MKCT1735
MKCN8561
MKCL6353
MKBX7562V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Articles

2D Materials in Biosensing

Professors summarize recent 2D materials synthesis advancements and biosensing applications in various fields.

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

Advances in scalable synthesis and processing of two-dimensional materials

Recent Advances in Perovskite Solar Cells

Research focuses on sustainable and cost-effective power generation systems to meet the growing demand for environmentally friendly energy sources.

View All Articles
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)
The super materials that could trump graphene.
Elizabeth Gibney
Nature, 522(7556), 274-276 (2015-06-19)
View All Related Papers

Global Trade Item Number

SKUGTIN
808822-1EA04061832995595