What is the point of wet-transfer in graphene?

In summary, wet-transfer is a process used to transfer a layer of graphene from one substrate to another using a liquid medium. This method is necessary for graphene in order to transfer a high-quality layer onto a desired substrate for device applications. The main advantages of wet-transfer include the transfer of a large area and the minimization of damage to the graphene layer. This method can also be used for other 2D materials, but it may be time-consuming and may not be suitable for rough or non-planar substrates.
  • #1
mkay
9
1
So, according to several papers, after graphene's production via CVD, one wets the Copper-Graphene substract with DI water. I was wondering what's the point of doing that?
 
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  • #2
Thanks a lot A:The reason for this is to remove any impurities - such as copper oxide - on the surface of the copper, which could interfere with the formation of graphene. It also helps to reduce the surface energy of the copper substrate and create a better 'substrate' surface for the graphene to grow on.
 

1. What is wet-transfer in graphene?

Wet-transfer in graphene is a process of transferring a layer of graphene from its growth substrate to another substrate using a wet transfer method. This method involves the use of a liquid medium, such as water or a solvent, to help separate the graphene layer from its original substrate and transfer it to a new one.

2. Why is wet-transfer necessary for graphene?

Wet-transfer is necessary for graphene because it allows for the transfer of a high-quality, large area graphene layer onto a desired substrate. This is important for the fabrication of graphene-based devices, as the original substrate may not be suitable for device applications.

3. What are the advantages of wet-transfer in graphene?

The main advantage of wet-transfer in graphene is that it allows for the transfer of a large area, high-quality graphene layer onto a different substrate. This method also minimizes damage to the graphene layer and allows for better control of the layer thickness.

4. Can wet-transfer be used for other 2D materials?

Yes, wet-transfer can be used for other 2D materials, such as transition metal dichalcogenides (TMDs) and hexagonal boron nitride (hBN). This method is commonly used for the transfer of various 2D materials onto different substrates for device applications.

5. Are there any limitations to wet-transfer in graphene?

One limitation of wet-transfer in graphene is that it is a time-consuming process and requires careful handling to avoid any contamination or damage to the graphene layer. Additionally, the process may not be suitable for transferring graphene layers onto rough or non-planar substrates.

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