Pricing

Product Code	Quantity	Price
M2140C1	500 mg	£169.00
M2140C1	1 g	£269.00

General Information

CAS number	12038-64-1
Chemical formula	ReSe2
Molecular weight	344.13 g/mol
Bandgap	~ 1.1 eV (direct)
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	Powder
Preparation	Synthetic - chemical vapour transport (CVT)
Purity	≥ 99.995%
Structure	Triclinic
Electronic properties	2D semiconductor
Melting point	n/a
Appearance	Black powder

General Description

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.

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.

Application

Rhenium diselenide exhibits a low-symmetry crystal lattice due to its distorted structure caused by the parallel arrangement of Re atoms. This results in anisotropic electrical and optical properties, which is what sparked the rise of ReSe₂ applications in polarisation-sensitive photodetectors and integrated polarisation controllers.

ReSe₂ has also a wide range of applications including strain sensors, stretchable electrodes, and flexible FETs, solar cells, and other photonic devices.

 

Synthesis

Rhenium diselenide powder is obtained via the CVT method, with a purity in excess of 99.995% achieved. 

Usage

ReSe₂ thin-layer films are harder to fabricate than traditional TMDs (such as MoS₂ and WS₂.)The distorted 1T structure and weaker interlayer coupling can easily cause anisotropic and out-of-plane growth - thus, thick-flake, dendrimeric, and flower-like structures are commonly observed. 

As such, high-purity rhenium diselenide powder is suitable for liquid chemical exfoliation to prepare ReSe nanosheets and nanoparticles down to few-layer films.

Literature and Reviews

1. Rhenium Dichalcogenides: Layered Semiconductors with Two Vertical Orientations, L. Hart et al., Nano Lett., 16, 1381−1386 (2016); DOI: 10.1021/acs.nanolett.5b04838.
2. Epitaxial growth of large-area and highly crystalline anisotropic ReSe2 atomic layer, F Cui et al., Nano Res., 10(8): 2732–2742 (2017); DOI 10.1007/s12274-017-1477-7.
3. Tunable Ambipolar Polarization-Sensitive Photodetectors Based on High-Anisotropy ReSe2 Nanosheets, E. Zhang et al., ACS Nano, 10, 8067−8077 (2016); DOI: 10.1021/acsnano.6b04165.
4. Chemical Vapor Deposition Synthesis of Ultrathin Hexagonal ReSe2 Flakes for Anisotropic Raman Property and Optoelectronic Application, M. Hafeez et al., Adv. Mater., 28, 8296–8301 (2016); DOI: 10.1002/adma.201601977.
5. Tuning the Optical, Magnetic, and Electrical Properties of ReSe2 byNanoscale Strain Engineering, S. Yang et al., Nano Lett., 15, 1660−1666 (2015); DOI: 10.1021/nl504276u.
6. Raman Spectra of Monolayer, Few-Layer, and Bulk ReSe2: An Anisotropic Layered Semiconductor, D. Wolverson et al., ACS Nano, 8 (11), 11154–11164 (2014); DOI: 10.1021/nn5053926.
7. Direct synthesis and in situ characterization of monolayer parallelogrammic rhenium diselenide on gold foil, S. Jiang et al., Commun. Chem., 1, 17 (2018); DOI: 10.1038/s42004-018-0010-6.

---

To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.

About Ossila Founded in 2009 by organic electronics research scientists, Ossila aims to provide the components, equipment, and materials to enable intelligent and efficient scientific research and discovery. Over a decade on, we're proud to supply our products to over 1000 different institutions in over 80 countries globally. With decades of academic and industrial experience in developing organic and thin-film LEDs, photovoltaics, and FETs, we know how long it takes to establish a reliable and efficient device fabrication and testing process. As such, we have developed coherent packages of products and services - enabling researchers to jump-start their organic electronics development program. The Ossila Guarantee Free Worldwide Shipping Eligible orders ship free to anywhere in the world Fast Secure Dispatch Rapid dispatch on in-stock items via secure tracked courier services Quality Assured Backed up by our free two year warranty on all equipment Clear Upfront Pricing Clear pricing in over 30 currencies with no hidden costs Large Order Discounts Save 8% on orders over $10,300.00 and 10% on orders over $12,900.00 Expert Support Our in-house scientists and engineers are always ready to help Trusted Worldwide Great products and service. Have already recommended to many people. Dr. Gregory Welch, University of Calgary Wonderful company with reasonably priced products and so customer-friendly! Shahriar Anwar, Arizona State University The Ossila Team Prof. David Lidzey - Chairman As professor of physics at the University of Sheffield, Prof. David Lidzey heads the university’s Electronic and Photonic Molecular Materials research group (EPMM). During his career, David has worked in both academic and technical environments, with his main areas of research including hybrid organic-inorganic semiconductor materials and devices, organic photonic devices and structures and solution processed photovoltaic devices. Throughout his academic career, he has authored over 220 peer-reviewed papers. Dr. James Kingsley - Managing Director James is a co-founder and managing director of Ossila. With a PhD in quantum mechanics/nanotech and over 12 years’ experience in organic electronics, his work on the fabrication throughput of organic photovoltaics led to the formation of Ossila and the establishment of a strong guiding ethos: to speed up the pace of scientific discovery. James is particularly interested in developing innovative equipment and improving the accessibility of new materials for solution-processable photovoltaics and hybrid organic-inorganic devices. Dr. Alastair Buckley - Technical Director Alastair is a lecturer of Physics at the University of Sheffield, specialising in organic electronics and photonics. He is also a member of the EPMM research group with a focus on understanding and applying the intrinsic advantages of functional organic materials to a range of optoelectronic devices. Alastair’s experience has not been gained solely in academia; he previously led the R&D team at MicroEmissive Displays and therefore has extensive technical experience in OLED displays. He is also the editor and contributor of "Organic Light-Emitting Diodes" by Elsevier. Our Research Scientists Our research scientists and product developers have significant experience in the synthesis and processing of materials and the fabrication and testing of devices. The vision behind Ossila is to share this experience with academic and industrial researchers alike, and to make their research more efficient. By providing products and services that take the hard work out of the device fabrication process, and the equipment to enable accurate, rapid testing, we can free scientists to focus on what they do best - science. Customer Care Team The customer care team is responsible for the customer journey at Ossila. From creating and providing quotes, through to procurement and inventory management, the customer care team is devoted to providing first class customer service. The general day to day responsibilities of a customer care team member involves processing customers orders and price queries, answering customer enquiries, arranging the shipment of parcels and notifying customers of updates on their orders. Collaborations and Partnerships Please contact the customer care team for all enquires, including technical questions about Ossila products or for advice on fabrication and measurement processes. Location and Facilities Ossila is based at the Solpro Business Park in Attercliffe, Sheffield. We operate a purpose-built synthetic chemistry and device testing laboratory on site, where all of our high-purity, batch-specific polymers and other formulations are made. This is complemented by a dedicated suite of thin-film and organic electronics testing and analysis tools within the device fabrication cluster housed in a class 1000 cleanroom in the EPSRC National Epitaxy Facility in Sheffield. All our electronic equipment is manufactured on-site.