Easy graphene transfer using desktop laminator and PVA plastic foil
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- Опубликовано: 16 сен 2024
- Graphene transfer is hard. But does it have to be? Abhay Shivayogimath from DTU Physics developed an incredibly simple method. All you need is a 200 USD desktop laminator and a roll of PVA foil, from amazon or ali baba... and you can transfer graphene with lower doping and higher mobility than both etching and bubbling transfer. Just published in Chemistry of Materials (pubs.acs.org/d...)
FUNDED BY Center For Nanostructured Graphene, Danish National Research Foundation and the EU Graphene Flagship.
Corrections to the video: The laminator was from ebay - it cost 395 USD in 2016. On amazon, the model costs more than 600 USD today - like 500-900 USD. The PVA foil costs 60 USD when bought in 2016 - shipping was 28 USD from Alibaba. It's 60 cm x 10 meters long.
Excellent like to see lots more thank you
Very neat. Good job
Thank you excellent
Excellent work👍👏
thank you!
well done!!!!
congrats
thanks!
Thank you for this useful video. In your publication your laminator speed is written to be 20 cm/min. Ours is about 66 cm/min (minimum speed) so we had to put on hot plate 110C for longer time, and there are lot of holes. Also apparently your laminator speed is said to be 12''/min (30cm/min) from the supplier (Akiles ProLam Photo 6-Roller). I have a hard time looking to find a new laminator that can go down to 20 cm/min, suppliers often specify their max speeds. Hopefully 30cm/min could be slow enough and improve our transfers.
Actually I think your real speed is 12''/min (30cm/min), I can see in the video the lamination lasted about 40s, not 1 min, maybe 20cm/min speed in the paper was underestimated. Thanks to the video now I know.
@@Ledeaven Hi, have you been able to reproduce this technique successfully? If yes, would you mind sharing what PVA sheet you used? Much appreciated.
Thank you for a very interesting video.
I have one question.
Is the transferred graphene atomically flat and contamination free?
I am very interested in the surface AFM image of the transferred sample.
トラファルガーデスポセイドン no not completely - buy its cleaner than with the other methods. Sorry for the long wait - i didnt see your question
It is as flat as the substrate allows it to be. Graphene is intrinsically atomically flat, but will cling to the surface - if the substrate is flat, the graphene will typically be. There are, however, differences in how many wrinkles the graphene has, depending on how it was fabricated. So, the quality of the graphene and the copper substrate (including flatness) also has a lot to say. The rolling can also introduce rolling lines, i.e. line shaped cracks or folds, perpendicular to the rolling direction. So yes, in principle, the method can make the graphene as flat as you want it, but it depends on a number of factors whether you will get this result, including the flatness of the substrate. The contamination is not zero, but the PVA washes away really nicely in warm water.
the PVA foil supplier is not in the article. What is the thickness of PVA used ?
I think the PVA supplier should be in the paper? Try to write Abhay, and ask what he used (abshi@dtu.dk)
Are there any pre-treatments to SiO2 surface before graphene transfer??
no... not anything special. It would usually be a good idea if it is not dirty.
Wonderful job! Have you tried to automate this process? I am working on an automated graphene production system and removal is going to be my next hurdle.
well - yes - we are working on that. You will hear more later :D
@@NanoClips PM me if you ever want to talk. I own a small manufacturing company and we have produced graphene on a roll to roll copper substrate.
@@ThePuttercross Really - interesting. We also have other things going on that might be of interest to you, like large-scale THz-based electrical characterisation - which we are currently fitting on a R2R transfer system
So, there you go. We just automatised it - check the two videos just uploaded :)
This is great! I would like to try this in my lab. How important is it to have a laminator with the 6 rollers and speed and temp control?
Do you think this method would work with a $30 2-roller laminator?
Thanks
it might... we have tried a few different types of laminator machines... probably some relatively stable mechanics and temperature control is an advantage, but it might work with very simple equipment ... and its as safe for kids, as a desktop laminator --- excellent for corona-compatible research (at home)!
@@NanoClips Hi, we tried it here at RIT using the exact same laminator as in your video, and it worked for us. We bought the graphene from graphene supermarket and the PVA "Blank Hydrographic Printing Film" from amazon. We had to run it through the laminator 3 or 4 times for the transfers to occur. Both from graphene to PVA and then to SiO2. Also, when we did get it to work, the graphene was not continuous with regions of about 300 to 500 um. It did show a very large G' peak though :-). We'll update you if we make improvements but we plan to fabricate some devices.
@@ivanpuchades5935 Thank you for sharing your experience. If you run 3 or 4 times this is an indication that the process is not yet optimized. One of the reasons could be the non-uniform temperature. If the temperature is low enough it would require several passes and if it is important, there is a risk of forming air bubbles (few hundred microns in size) between the graphene and the adhesive which would require the operation under vacuum as suggested at the end of the video. One other parameter is the PVA thickness. Do you have an idea on the PVA thickness, delamination temperature and speed used in your experiment? It will be great if you make a return.
@@Orientaliszt Thanks for your reply. We are using the same laminator as in your video (Akiles Pro-Lam Photo 13" 6 Roller Pouch Laminator) at a speed setting of 1 (which I measured to be ~38 cm/min in my system (1-inch in 4 seconds), that is almost 2x the speed that your paper suggests (!?)) and a temperature of 110 °C. The PVA thickness is 2 mils (50 microns). Another variable we introduced is that we left the copper/graphene sheet soak in DI water for 4 days. Do you think this could have made a difference in the quality of the transfer? Thank you!
@@Orientaliszt do you recommend PVA thickness of any specific value/quality for the process?
Thank you.
Where do I get the PVA sheets?
can you suggest the supplier name?
hi , sorry - didnt see :) ... the supplier should be in the article. If not, please send email to Abhay Shivayogimath and ask (first author)
Hi. I was wondering if you managed to obtain the PVA foils and if you would mind sharing the supplier, thank you.
ouchhh... so easy!!
im gonna try..
let us know if you run into any trouble... we find that it works better for reasonably good graphene; if the grains are small, it tends to break up more. You may also want to experiment with heating time and temperatures. It works pretty robustly across a number of substrates for us, but we have not tried every type of graphene with every type of substrate.
@@PeterBoggild okay... I make graphene on copper substrates too... I have to find this PVA films.. I wonder if I can find this here in Brazil
@@renatoberaldo2335 I believe you can buy it on Amazon? The type should be in the paper. If you cant find it, write to abhay (abshi@dtu.dk)...
@@PeterBoggild Im trying to find this PVA, but without success.. I'll send an email to you... tks dude!!
@@renatoberaldo2335 did you already?
can i get DOI of the paper mention in the video
hello you r coated copper foil with graphen by which way ?
Chemical Vapor Deposition: you heat up a piece of copper (we use very clean foil bought in rolls) in an atmosphere of methane and hydrogen in a special oven called a furnace... to a temperature of 1050 C. At this temperature the methane cracks into carbon and hydrogen, allowing carbon atoms to make a monolayer (1 atom thin) of graphene on the copper foil. We let it cool down, and there we are!
ruclips.net/video/K309K-DFqpE/видео.html
lol. These guys are funny.