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Product Code M2140C1-500mg
Price £220 ex. VAT

Low price, high purity 2D metal rhenium diselenide powder and crystals

For the development of next-generation electronics, optoelectronics, and nanotechnology

Technical Data | MSDS | Structure | Properties | Literature and Reviews | Related Products | Resources and Support

Rhenium diselenide (ReSe2), CAS number 12038-64-1, belongs to the family of layered transition metal dichalcogenide (TMDC) semiconductors with layers bound by van der Waals forces. 

One of the striking physical properties of rhenium diselenide (ReSe2) is that it has a stable distorted 1T phase (1T-ReSe2) in which the underlying 1D chain arrangement of Re4 parallelograms leads to a strong in-plane anisotropy. The structural distortion causes weaker interlayer coupling, which makes its bulk material behave electronically and vibrationally like decoupled monolayers.

Due to its distorted structure (like its twin ReS2), ReSe2 has also proven to exhibit dramatic spatial-anisotropy optical response, making it possible for applications in conceptual anisotropic optoelectronic and nanomechanical devices. The triclinic symmetry of the crystal lattice caused by the Re4 “diamond-shaped” parallelograms renders it optically bi-axial, giving the rise of an inherent anisotropic in-plane polarisation response. For this reason, ReSe2 and its doped hybrid materials are promising candidates for optical logic gates and optical computation.

High Purity rhenium diselenide

High Purity

≥99.999% rhenium diselenide Crystal

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Low Cost 12038-64-1

Low Cost

Low Cost Rhenium Diselenide

Different Forms of Rhenium Diselenide

Powder & Crystal

Different Forms of Rhenium Diselenide

ReSe2 devices exhibit an outstanding photoresponse to near-infrared light and field-effect transistors (FETs). Employing ReSe2 shows a p-type conduction characteristic with a current ON/OFF ratio of up to 105 and a hole-carrier mobility of 0.98 cm2V-1s-1.

We supply low price rhenium diselenide in several different forms for a range of applications.

Rhenium diselenide powder

Rhenium Diselenide Powder

Can be used for preparation of rhenium diselenide nanoplates and ultrathin films

Sold by weight

≥99.995% purity

From £220

Rhenium diselenide crystals by size

Rhenium Diselenide Crystals by Size

Can be used to produce single or few-layer rhenium diselenide sheets via mechanical or liquid exfoliation

Small (≥10 mm2) or medium (≥25 mm2) crystals available*

≥99.999% purity

From £520

*Typical representative size, areas/dimensions may vary

Bulk single rhenium diselenide crystal is most commonly used as sources from which single or few-layer sheets can be obtained via either mechanical or liquid exfoliation. 

Rhenium diselenide powder can also be used to prepare ReSe2 nanosheets and nanoparticles by liquid-exfoliation (normally assisted by sonication), especially when it is the case of foreign elements such as lithium or sodium cations being inserted between layers by the process of intercalation. Liquid exfoliation can provide mass production of such products.

Technical Data

CAS Number 12038-64-1
Chemical Formula ReSe2
Molecular Weight 344.13 g/mol
Bandgap ~1.30 eV (direct)
Preparation Synthetic - Chemical Vapour Transport (CVT)
Structure Triclinic
Electronic Properties 2D semiconductor
Melting Point N/A
Colour Black
Synonyms Rhenium selenide, Bis(selanylidene)rhenium
Classification / Family Transition metal dichalcogenides (TMDCs), 2D semiconductor materials, Nano-electronics, Nano-photonics, Photovoltaic, Materials science

Product Details

Form Purity
Powder ≥99.995%
Crystal ≥99.999%

Pricing Table

Product Code Form Size/Weight* Price
M2140C1 Powder 500 mg £220
M2140C1 Powder 1 g £350
M2140A10 Crystal Small (≥10 mm2) £520 ea.
M2140A25 Crystal Medium (≥25 mm2) £850 ea.

*typical representative size, areas/dimensions may vary

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MSDS Documents

Rhenium diselenide powder MSDSRhenium diselenide powder

Rhenium diselenide crystal MSDSRhenium diselenide crystal

Structure of Rhenium Diselenide

Unlike most of the TMDCs such as MoS2 and WSe2, (which crystallise in a 2H-hexagonal structure) ReSe2 shows a distorted CdCl2-type lattice structure. Each unit cell of ReSe2 contains four unit layers, which includes two categories of rhenium (Re) atoms together with four categories of selenium (Se) atoms.

The Se atoms on top and at the bottom sandwich the Re atoms in the middle to form a monolayer lattice of ReSe2. Adjacent Re atoms are bonded in a distorted zigzag four-atom parallelogram form. Calculations identified that such a distorted octahedral (1T') crystal structure with triclinic symmetry has lower energy than its hexagonal counterpart to promote stabilty.

The triclinic symmetry of the crystal lattice caused by the Re4 “diamond-shaped” parallelograms renders it optically bi-axial, giving the rise of an inherent anisotropic in-plane polarisation response.

Top and side view of single-layer rhenium diselenide (ReSe2)

Properties of 2D Rhenium Diselenide

After exfoliation of crystals or powder, rhenium diselenide typically has the following properties:

  • Trinic (1T') structure (space group: P-1)
  • Strong in-plane anisotropy and in-plane polarisation anisotropic response
  • ReSe2 shows a p-type conduction characteristic with a current ON/OFF ratio of up to 105 and a hole-carrier mobility of 0.98 cm2V-1s-1
  • Bandgap is weakly layer-dependent and decreases from 1.31 eV for thin layers to 1.29 eV in thick flakes.

Literature and Reviews

  • Temperature dependence of Raman shifts in layered ReSe2 and SnSe2 semiconductor nanosheets, A. Taube, Appl. Phys. Lett. 107, 013105 (2015); doi: 10.1063/1.4926508
  • Rhenium diselenide (ReSe2) infrared photodetector enhanced by (3aminopropyl)trimethoxysilane (APTMS) treatment, M. H. Alia et al., Org. Electron.,  53, 14–19 (2018); doi: 10.1016/j.orgel.2017.11.006.
  • Interlayer Interactions in Anisotropic Atomically-thin  Rhenium Diselenide, H. Zhao et al.,  Nano Res., 8(11): 3651–3661 (2015); DOI: 10.1007/s12274-015-0865-0.

We stock a wide range of 2D materials available to purchase online. Please contact us if you cannot find what you are looking for.

Resources and Support

Viscoelastic Transfer of 2D Material Using PDMS

Viscoelastic transfer using polydimethylsiloxane (PDMS) stamps is one of the methods used for the deterministic placement of 2D materials and the fabrication of van der Waals heterostructures. It relies on the viscoelasticity of PDMS, which behaves as an elastic solid on short time scales, but as a viscous fluid on long time scales.

Learn more...
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