About Our Products

2D Charge Density Wave

2D Excitonic Insulators

2D CVD Monolayers

2D MBE Monolayers

MAXene & MXene

2D Metals

2D Semimetals

2D Superconductors

2D Topological Insulators

2D Charge Density Wave
We specialize in synthesizing defect free single crystals of large size, high quality, electronic and optical grade layered vdW crystals. This category contains 2D metallic, semimetallic, superconducting, or CDW single crystals. Our products have the following unique novelties;

Guaranteed CDW, semimetal, and superconducting response: 2Dsemiconductors is the only commercial source that guarantees CDW, superconductivity, and metallic response.
Different crystal growth techniques: Our crystals are grown by variety of different methods including chemical vapor transport (CVT) flux zone technique, float zone technique, and some of our patented technologies
Defect free single crystals: Defects influence how sharp superconducting transition is, the superconductiviity transition temperature, CDW hysterisis loops, and many other effects. After two decades of crystal growth optimization, we have acquired substantial experience in keeping the defect concentrations as low as 1E8 cm-2 which is unrivaled in the field.
Large size crystals: Our R&D team provides high quality and large size crystals to move your research forward.
Customer support and rights: Our company offers the best customer service, data support, technical support, as well as customer rights including but not limited to sample return and sample exchange policies.

Please see our CDW, superconducting, and metallic vdW crystals below. Click on particular products for more details. If your research requires any special crystal, please feel free to contact us. Our R&D team will be happy to undertake new challenges.

2D Excitonic Insulators
Excitonic insulators are novel material systems exhibiting correlated electronic phases. Condensation of excitons to its ground state happens for a specific condition when the exciton binding energy (Eb) is larger than the band gap (Eg). The excitonic condensation in semiconductors occurs through a Bose-Einstein condensation process, while the condensation in semimetals occurs through the Bardeen-Cooper-Schrieffer (BCS) process. The spontaneous band hybridization caused by the Coulomb attraction between the orthogonal conduction (electron) and valence (hole) bands opens the bandgap and drives the system into the insulating state

2D CVD Monolayers
Our company introduced the very first chemical vapor deposited (CVD) monolayers of 2D materials back in 2012. Our first products CVD MoS2 and WS2 monolayers, as well as lateral / vertical heterojunctions were commercially made available to our clients. Between 2011-2017, our research and development team located in Menlo Park, California, USA has developed many novel techniques to achieve large area fully continuous (or isolated triangles) of CVD monolayers of different 2D Materials. Currently, we offer monolayers of MoS2, MoSe2, WSe2, WS2, SnS2, SnSe2, ReS2, and ReSe2 on a variety different kind of substrates including sapphire, quartz, SiO2/Si, PET, and designed substrates (by customers) at rather affordable prices.

Our team also has long experience in transferring CVD grown layers onto any custom substrates. See our Word Cloud image below which depicts some of the CVD materials transferred onto our customers' custom substrate

Custom substrate examples

2D MBE Monolayers
Molecular beam epitaxy (MBE) growth is considered as one of the most sophisticated techniques for epitaxial synthesis of high quality optical, electronic, quantum, and thermal grade materials. The true power of this technique comes from our ability to send very slim amount of atoms (as low as 5 atoms per second) onto atomically flat substrates to reach high crystallinity. Entire growth takes place at pressures as low as 1E-9 Torr to create high quality and pure materials.

Currently, our team offers MoS2, MoSe2, WS2, and WSe2 monolayers onto sapphire in our two MBE deposition chambers. In the near future, our deposition team will offer these materials on conductive substrates such as graphite and gold for scanning tunnelling microscopy (STM) studies. Within 2019, we envision releasing new MBE grown materials including, SnS2, SnSe2, PtS2, PtSe2, PdS2, PdSe2, ZrS2, and ZrSe2. In teh beginning of 2020, our company intends to release MBE grown quantum materials for more advanced measurements and tests.

Average structural comparison between MBE, CVD, and MOCVD grown samples

2D Magnets
How can one ensure the measured magnetic signal is not coming from impurities in vdW crystals? More specifically magnetic Fe, Co, Ni impurity atoms or their oxides commonly appear in vdW crystals in no care is taken. Our magnetic crystals are grown slowly using top-notch flux zone growth technique for highest quality crystallization. This method does not use any transporting agent and does not contaminate the crystal these impurities. Special care is given to using highest purity precursors that are free of magnetic transition metal series and their oxides . This allows us to synthesize 99.9995% or higher purity magnetic vdW crystals and access their magnetic behavior without any concern over magnetic impurity contribution.

MAXene & MXene
What are MAXenes? Similar to graphite and MoS2, the MAX phases are layered and have the general formula: Mn+1AXn, (MAX) where n = 1 to 3, M is an early transition metal, A is an non-metal elements and X is either carbon and/or nitrogen. 2Dsemiconductors Inc. is proud to announce World's first electronic and optical grade commercial layered MAXene phase materials. MAX phase has been synthesized at our facilities using our specially developed technique involving large reactor chemical vapor deposition to yield World's highest purity (99.999% or higher guaranteed), electronic and optical grade, and layered MAX phases.

MAXene to MXene transition

What are MXenes? MXenes are a class of layered materials made from the precursor MAXene by removing the A element. Thus, they are named MXenes and they have a similar structure to graphene and other 2D layers. While the precursor has Mn+1AXn chemical formula MXene has M(n+1)Xn formula. We use our patent pending formula NaF-HCl solution etching process. Special care is given to reducing the etching rate and eliminating secondary MAX phases in order that 100% pure, perfectly layered, and purity higher than 99.999% can be achieved.

If you have specific type of new MAXene and MXene phases in mind please contact us. Our research and development team will be happy to design, synthesize, and provide with new types of materials on demand.

Drexel License for MXene Materials from Nuevogen LLC dba 2D Semiconductors

Sold for research and education purposes only. The product is subject to one or more issued and/or pending patents and patents applications owned by Drexel University, including US9,193,595, US9,415,570, US 9,416,011, US 9,837, 182, EP12803351.1, US15/567,777, and CN201680014821.8. Nuevogen LLC dba 2D Semiconductors is licensed to sell this product for research and education purposes only. The purchase of this MXene product from Nuevogen LLC dba 2D Semiconductors conveys to the buyer a non-transferable and non-sublicensable sublicense from Nuevogen LLC dba 2D Semiconductors to use the purchased materials solely for research and education purposes; this sublicense specifically precludes the use of this product for drug, household, or other uses. The purchase of this product does not convey or grant a license to buyer to use this product for any other purpose, including without limitation, to provide any commercial service or to resell this product to a third party. For a commercial license to use this product, please contact Nuevogen LLC dba 2D Semiconductors for licensor contact details.

2D Metals
We specialize in synthesizing defect free single crystals of large size, high quality, electronic and optical grade layered vdW crystals. This category contains 2D metallic, semimetallic, superconducting, or CDW single crystals. Our products have the following unique novelties;

Guaranteed CDW, semimetal, and superconducting response: 2Dsemiconductors is the only commercial source that guarantees CDW, superconductivity, and metallic response.
Different crystal growth techniques: Our crystals are grown by variety of different methods including chemical vapor transport (CVT) flux zone technique, float zone technique, and some of our patented technologies
Defect free single crystals: Defects influence how sharp superconducting transition is, the superconductiviity transition temperature, CDW hysterisis loops, and many other effects. After two decades of crystal growth optimization, we have acquired substantial experience in keeping the defect concentrations as low as 1E8 cm-2 which is unrivaled in the field.
Large size crystals: Our R&D team provides high quality and large size crystals to move your research forward.
Customer support and rights: Our company offers the best customer service, data support, technical support, as well as customer rights including but not limited to sample return and sample exchange policies.

2D Semimetals
We specialize in synthesizing defect free single crystals of large size, high quality, electronic and optical grade layered vdW crystals. This category contains 2D metallic, semimetallic, superconducting, or CDW single crystals. Our products have the following unique novelties;

Guaranteed CDW, semimetal, and superconducting response: 2Dsemiconductors is the only commercial source that guarantees CDW, superconductivity, and metallic response.
Different crystal growth techniques: Our crystals are grown by variety of different methods including chemical vapor transport (CVT) flux zone technique, float zone technique, and some of our patented technologies
Defect free single crystals: Defects influence how sharp superconducting transition is, the superconductiviity transition temperature, CDW hysterisis loops, and many other effects. After two decades of crystal growth optimization, we have acquired substantial experience in keeping the defect concentrations as low as 1E8 cm-2 which is unrivaled in the field.
Large size crystals: Our R&D team provides high quality and large size crystals to move your research forward.
Customer support and rights: Our company offers the best customer service, data support, technical support, as well as customer rights including but not limited to sample return and sample exchange policies.

2D Superconductors
We specialize in synthesizing defect free single crystals of large size, high quality, electronic and optical grade layered vdW crystals. This category contains 2D metallic, semimetallic, superconducting, or CDW single crystals. Our products have the following unique novelties;

Guaranteed CDW, semimetal, and superconducting response: 2Dsemiconductors is the only commercial source that guarantees CDW, superconductivity, and metallic response.
Different crystal growth techniques: Our crystals are grown by variety of different methods including chemical vapor transport (CVT) flux zone technique, float zone technique, and some of our patented technologies
Defect free single crystals: Defects influence how sharp superconducting transition is, the superconductiviity transition temperature, CDW hysterisis loops, and many other effects. After two decades of crystal growth optimization, we have acquired substantial experience in keeping the defect concentrations as low as 1E8 cm-2 which is unrivaled in the field.
Large size crystals: Our R&D team provides high quality and large size crystals to move your research forward.
Customer support and rights: Our company offers the best customer service, data support, technical support, as well as customer rights including but not limited to sample return and sample exchange policies.

2D Topological Insulators
We specialize in synthesizing defect free single crystals of large size, high quality, electronic and optical grade layered vdW crystals. This category contains 2D metallic, semimetallic, superconducting, or CDW single crystals. Our products have the following unique novelties;

Guaranteed CDW, semimetal, and superconducting response: 2Dsemiconductors is the only commercial source that guarantees CDW, superconductivity, and metallic response.
Different crystal growth techniques: Our crystals are grown by variety of different methods including chemical vapor transport (CVT) flux zone technique, float zone technique, and some of our patented technologies
Defect free single crystals: Defects influence how sharp superconducting transition is, the superconductiviity transition temperature, CDW hysterisis loops, and many other effects. After two decades of crystal growth optimization, we have acquired substantial experience in keeping the defect concentrations as low as 1E8 cm-2 which is unrivaled in the field.
Large size crystals: Our R&D team provides high quality and large size crystals to move your research forward.
Customer support and rights: Our company offers the best customer service, data support, technical support, as well as customer rights including but not limited to sample return and sample exchange policies.