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Description
NbSe2 crystals
2H-phase niobium diselenide is a superconducting vdW crystal with charge density wave (CDW) and Weyl semimetal properties. It has been shown to exhibit superconducting behavior at low temperatures.
Materials Project NbSe2
C2DB material properties NbSe2
Sample size ~ centimeter sized crystals Material properties Charge density wave, Weyl semimetal, superconductor Crystal structure 2H phase Degree of exfoliation Easy exfoliation characteristics Production method Flux zone (highest electronic grade) or CVT growth (more defected) Other characteristics - Guaranteed electronic response
- Flux zone guaranteed CDW and Weyl response
- World's largest size crystals.
Growth method matters> Flux zone or CVT growth method? Contamination of halides and point defects in layered crystals are well known cause for their reduced electronic mobility, reduced anisotropic response, poor e-h recombination, low-PL emission, and lower optical absorption. Flux zone technique is a halide free technique used for synthesizing truly semiconductor grade vdW crystals. This method distinguishes itself from chemical vapor transport (CVT) technique in the following regard: CVT is a quick (~2 weeks) growth method but exhibits poor crystalline quality and the defect concentration reaches to 1E11 to 1E12 cm-2 range. In contrast, flux method takes long (~3 months) growth time, but ensures slow crystallization for perfect atomic structuring, and impurity free crystal growth with defect concentration as low as 1E9 - 1E10 cm-2. During check out just state which type of growth process is preferred. Unless otherwise stated, 2Dsemiconductors ships Flux zone crystals as a default choice.
XRD data collected from high quality NbSe2 crystalsRaman spectrum collected from NbSe2 single crystals showing defect free and highly crystalline nature of NbSe2Recent work citing our crystalsPlasmons in the van der Waals charge-density-wave material 2H-TaSe2
Nature Communications volume 12, Article number: 386 (2021)Electrostatically Tunable Near-Infrared Plasmonic Resonances in Solution-Processed Atomically Thin NbSe2
Advanced Materials (2021) https://doi.org/10.1002/adma.202101950