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Merck
CN

808733

Sigma-Aldrich

Tantalum diselenide

Crystal, 99.995%

Synonym(s):

Tantalum selenide

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About This Item

Empirical Formula (Hill Notation):
TaSe2
CAS Number:
12039-55-3
Molecular Weight:
338.87
MDL number:
MFCD00064699
UNSPSC Code:
26111700
PubChem Substance ID:
329769121
NACRES:
NA.23

Key Documents

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Quality Level

100

Assay

99.995%

form

crystals

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

SMILES string

[Se]=[Ta]=[Se]

InChI

1S/2Se.Ta

InChI key

IYJABVNLJXJBTP-UHFFFAOYSA-N

General description

The hexagonal layered crystal structure of Tantalum diselenide constitutes of Se-Ta-Se layers in various stacking arrangements. The layered structure allows lamination or exfoliation of the layers.

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, photovoltaics, gas sensing, lithium ion batteries, field effect transistors, spintronics etc. Transition metal dischalcogenides represent an important class of inorganic 2D materials that have the aforementioned applications.

Preparation Note

Store under Nitrogen atmosphere.

Signal Word

Danger

Hazard Statements

H301 + H331,H373,H410

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

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Certificates of Analysis (COA)

Lot/Batch Number
MKBX3552V

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Phonon and thermal properties of exfoliated TaSe2 thin films.
Yan Z, et al.
Journal of Applied Physics, 114(20), 204301-204301 (2013)
Temperature-dependent Fermi surface of 2 H-TaSe 2 driven by competing density wave order fluctuations.
Inosov DS, et al.
Physical Review. B, Condensed Matter and Materials Physics, 79(12) (2009)
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)

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