Single-Crystalline Flakes

2DLayer’s CVD-grown single-crystalline 2D transition metal dichalcogenide (TMDC) flakes provide the highest crystalline quality materials, and are particularly suitable for research that does not require large size and tunable layer number.

Monolayer material is highly luminescent.

The frequency difference of the characteristic Raman peaks in the monolayer (19.5 cm-1) agree with the reported values in the literature.

The thickness, surface, and cleanliness of the flake surface is confirmed with AFM.

Inquire to sales@2dlayer.com for more information about monolayer TMDC flakes.

Specifications:

  • Flakes are single-crystalline and separated

  • Monolayer flakes are highly crystalline and luminescent, with PL efficiency between 0.1-5%

  • Flake size ranges from 5-200um+ depending on material (flake size is tunable upon request)

  • Standard substrates:

    • SiO2/Si w/300nm dry thermal oxide

    • Single or double-side polish sapphire


Notes:

  • Most flakes are clean monolayers, but some few-layer flakes can be found. This contrast is easily distinguishable with optical microscopy.

  • Most flakes are single-crystalline, but rejoins of conjoined flakes can be found that have well-defined grain boundaries


Single-Crystalline Flakes

List of Products

MoS2

Average single-crystal size range:
30-150μm

    Quantity  
  Sku Substrate 1-4 5-9 10+ Qty Action
SF-MOS2-SI SiO2/Si $299.00 $229.00$174.00
SF-MOS2-SA Sapphire $299.00 $229.00$174.00
SF-MOS2-X Request Quote

WS2

Average single-crystal size range:
30-150μm

    Quantity  
  Sku Substrate 1-4 5-9 10+ Qty Action
SF-WS2-SI SiO2/Si $299.00 $229.00$174.00
SF-WS2-SA Sapphire $299.00 $229.00$174.00
SF-WS2-X Request Quote

WSe2

Average single-crystal size range:
30-100μm

    Quantity  
  Sku Substrate 1-4 5-9 10+ Qty Action
SF-WSE2-SI SiO2/Si $299.00 $229.00$174.00
SF-WSE2-SA Sapphire $299.00 $229.00$174.00
SF-WSE2-X Request Quote

MoSe2

Average single-crystal size range:
30-100μm

    Quantity  
  Sku Substrate 1-4 5-9 10+ Qty Action
SF-MOSE2-SI SiO2/Si $299.00 $229.00$174.00
SF-MOSE2-SA Sapphire $299.00 $229.00$174.00
SF-MOSE2-X Request Quote
Total Qty
Total