Pricing
| Size | Product code | Size description* | Quantity (EA) | Price |
| Small | M2109A10 | >10 mm2 | 1 | £357.00 |
| Medium | M2109A25 | >25 mm2 | 1 | £578.00 |
| Large** | M2109A00 | >100 mm2 | 1 | £1350.00 |
*typical representative size, areas/dimensions may vary
**item with a lead time of 2-3 weeks, please contact for more information
General Information
| CAS number | 12058-20-7 |
| Chemical formula | MoTe2 |
| Molecular weight | 351.14 g/mol |
| Bandgap | 0.81 - 1.13 eV [1] |
| Synonym | Molybdenum (IV) telluride, Molybdenum telluride |
| Classification / Family | Transition metal dichalcogenides (TMDCs), 2D Semiconductor Materials, Nano-electronics, Nano-photonics, Electrochemical Energy Storage Systems, Topological superconductors, Materials science |
Product Details
| Form | Single Crystal |
| Preparation | Synthetic - Chemical Vapour Transport (CVT) |
| Purity | ≥ 99.999% |
| Structure | Hexagonal |
| Electronic properties | 2D semiconductor |
| Melting point | Decomposes |
| Colour | Metallic black |
General Description
Molybdenum Ditelluride MoTe2 (α-MoTe2) is a semiconductor with an indirect band gap of around 1.0 eV in bulk crystal or powder form, and a direct band-gap of about 1.1 eV in monolayer films. Like MoS2 and other 2D materials, MoTe2 has a layered structure. It is composed of hexagonal sheets of molybdenum atoms - these are located between two hexagonal planes of tellurium atoms. Individual sheets are held together by weak Van der Waals forces, and are stacked with 2H symmetry.
It has a characteristic layered structure direct band-gap that extends to near infrared (NIR) wavelengths. Combined with the advantages of wet chemical exfoliation, MoTe2 has great potential for electronics - especially in photovoltaic technologies.
MoTe2 is also semi-metallic, with bulk MoTe2 exhibiting superconductivity at a transition temperature of 0.10 K.
The hexagonal structure of Molybdenum ditelluride (MoTe2).
Applications
Monolayer or few-layer 2D MoTe2 has a direct band-gap and finds applications in transistors, photo-detectors, and photovoltaics.
Synthesis
Molybdenum ditelluride MoTe2 is manufactured using chemical vapour transport (CVT) crystallisation, with purities in excess of 99.999% achieved.
Usage
Molybdenum ditelluride MoTe2 single crystal can be used to create monolayer and few-layer MoSe2 sheets by mechanical or liquid exfoliation.
Literature and Reviews
- Exfoliated multilayer MoTe2 field-effect transistors, S. Fathipour et al., Appl. Phys. Lett. 105, 192101 (2014); doi: 10.1063/1.4901527.
- Optical Properties and Band Gap of Single- and Few-Layer MoTe2Crystals, C. Ruppert et al., Nano Lett., 14, 6231−6236 (2014); DIO: 10.1021/nl502557g.
- Two-dimensional MoTe2 materials: From synthesis, identification, and charge transport to electronics applications, Y. Chang et al, Jpn. J. Appl. Phys. 55 1102A1 (2016); DIO: 10.7567/JJAP.55.1102A1.
- Unified Description of the Optical Phonon Modes in N‑Layer MoTe2, G. Froehlicher et al., Nano Lett., 15, 6481−6489 (2015); DOI: 10.1021/acs.nanolett.5b02683.
- Fast MoTe2 Waveguide Photodetector with High Sensitivity at Telecommunication Wavelengths, P. Ma et al., ACS Photonics, 5, 1846−1852 (2018); DOI: 10.1021/acsphotonics.8b00068.
- Superconductivity in Weyl semimetal candidate MoTe2, Y. Qi et al., Nat. Commun., 7:11038 (2016); DOI: 10.1038/ncomms11038.
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.
