Monolayer Graphene on Cu with PMMA Coating

Browse our wide selection of products for your research needs

Home / Products / Graphene / CVD Graphene /
Monolayer Graphene on Cu with PMMA Coating
Product Infomation
Cat.No. GRA-242
Product Name Monolayer Graphene on Cu with PMMA Coating
Synonyms Graphene
Description This product is monolayer graphene on Cu substrate with PMMA coating. This pre-coating product can be used to transfer the graphene film by a simple method.
Product overview Transparency: > 97%
Coverage: > 97%
Number of graphene layers: 1
Thickness (theoretical): 0.345 nm
Thickness of Cu substrate: 20-50μm
Sheet Resistance: 400±50 Ohms/sq (1cm x1cm)
Morphology & Appearance Transparent thin layer on copper
Storage Store at room temperature
Application Flexible batteries, Electronics, Aerospace industry, MEMS and NEMS, Microactuators, Conductive coatings, Research
Usage Materials: 1M~2M FeCl3, acetone, deionized water, plastic dropper, tweezers
1, Prepare two glass culture dishes, each with FeCl3 solution. Hold the sample with a pair of tweezers and place it gently on the surface of FeCl3 solution. The Cu side is in contact with the solution and the surface coated with PMMA is facing up.
2, After 3 minutes of corrosion, clamp a corner of the sample with tweezers and lift the sample vertically from the dish. Pipette the FeCl3 solution with a plastic dropper, rinse three times of the side of the sample that has been corroded(If the first removal is not clean, you can etch for another two minutes after the first corrosion, repeat the rinse once).
3, Gently spread the rinsed sample on the surface of the second culture dish solution. After about 1 hour, the copper was completely etched away. It can be seen that the PMMA film floated on the surface of the solution, and the graphene was on the lower surface of the PMMA film.
4, Picke up the sample from the bottom up using a glass slide and placed in a dish containing deionized water to remove the remaining FeCl3 solution. Repeat three times and using the fresh water for 10 minutes each time(The residue of FeCl3 can be substantially removed after washing three times).
5, Use the substrate you need to pick up the graphene film from the bottom up and put the graphene film in the center of the substrate. Then, keep the sample upright to let the residual water drip. The sample is then placed nearly vertically on the water-absorbing material and dry naturally.
6, After naturally drying, place the sample in 90 centigrade oven or hot stage (110 centigrade) for about 1 hour to let the graphene and the substrate attached closely.
7, After cooled, put the sample in acetone solution to remove PMMA. Repeat three times. Using the fresh acetone each time for 30 minutes (Heating the acetone to 50 degrees can save half time. Heating the acetone also helps to completely remove the pmma, but may cause more graphene damage defects).
8, Remove the sample and let the surface acetone evaporate clean. The sample can be taken for storage. Please put in the oven for 90 centigrade for a half hours before use to remove the attached water molecules.
Download Datasheet
Our products/services are For Research Use Only. Not For Clinical Use!
Online Inquiry

Welcome! For price inquiries, please feel free to contact us through the form on the left side. We will get back to you as soon as possible.



Enter your email here to subscribe.
Copyright © 2021 MATEXCEL. All Rights Reserved.