Bob Lewis Are you sure? What if each particle there is a very small sheet of carbon one atom thick, but because each sheet is so small in area (though being composed of many atoms) we only see them as specks of dust?
The principle process is that the graphite(millions of graphene molecules jumbled together) is spread out in a 'thick' layer on the smooth plastic sheet, so the bottom graphenes stick to the surface, and those above are rubbed away to nearby bare plastic, where they too can stick to the surface. If you do this enough, (10-20 minutes, until there is no bare surface) and the entire surface is only 1 (molecule) layer thick, you will get no more black when you wipe with a fresh white tissue (no more stacked layers to rub off). The rubbing has also (mostly) crunched the edges of the stuck graphene sheets together (electrically), making a single large molecule of graphene on the plastic surface with pretty good conductivity. If you looked with a powerful microscope, you could see the very thin 'decoupage'-like effect (or like black sea-ice pack) with quite a few irregularities where the original graphene molecules were pushed edge-to-edge into one-another. The softer the paper and the harder you rub, the better the joints and total conductivity will be as it snaps loose the overlaps, and pushes the shards into other gaps of exposed plastic surface. (It is a little like pouring out dominoes, and spreading them out into a single layer.)
graphene is not known for it's single atom layer specifically but for it's structure.... It's not that easy to manufacture... Until now it has only been made up to size of a credit card through very tough processes and a hell lot of capitol..... We can't make graphene just like that by rubbing...
You use powder graphite, when the plastic surface is covered, graphite is exfoliated mechanically, so, the conductive property is due to few-layer graphene. Just an illustrative example.
THAT is NOT Graphene! THAT is just a graphite coated surface which you could do with an ordinary pencil (shave off some graphite). A simpler and better way to achieve an evenly coated surface (STILL not Graphene!) would be to use colloidal graphite. This is the stuff sold as Permostat for coating PVC records to avoid surface static build up - and it works brilliantly! True Graphene is VERY difficult to produce in large sheets. If it were THIS easy, don't you think there would be DOZENS of manufacturers lined up producing the stuff? TRUE Graphene is just ONE atom thick and would be WAY stronger than the polythene sheet substrate on which this process is dependent. Epic FAIL I'm afraid.
Bob Lewis more like you dont understand graphene production. Graphite is just billions of layers of graphene. There are chemical processes to separate the layers into chunks of graphene but the end result is a powder. The difference is that with the graphene powder, even just rubbing it onto the plastic surface will force the millions of layers to connect with each other at the very base of the plastic, forming a very crude sheet of graphene. If he were to continue rubbing for a while eventually only the graphene will be left on the plastic.
abraham_102 on the contrary I understand what Graphene and graphite are only too well and the fact that graphite is comprised of layers. My two points remain: 1. THAT is NOT Graphene, for the reasons already outlined. 2. If it were to be such a simple process to produce Graphene then why are some of the most brilliant minds in the industry NOT using this method? Do you somehow think that IBM (one of the biggest researchers in this field) would not jump at the chance to use such a simple method to produce quantities of the stuff even if just for research? Please! Give me a break! 🤔🤔😵😵
mud eel REALLY! Please quote your sources! What do you mean by "bulk"? Sheets 1m X say 1m? 20cm X 20 cm? Or just 0.5mm X 0.5mm? The whole industry would just LOVE to know how YOU can produce just ONE 1m sq sheet never mind hundreds of thousands of square metres!
Bob Lewis look up a channel called the thought emporium. Also, graphene production is really easy. Whats difficult is making high quality graphene for research purposes. Calm down, drink some humble tea. Also, a bunch of researchers just recently published a method for mass production of graphene. What you are saying wouldve been true a decade ago. Nowadays, not really. There are simple ways of making shitty quality graphene, and expensive high quality methods.EDIT: you DO realize that graphene sheets come in microscopic sized chunks right? No is saying you can make huge 1m squared sheets of the stuff. Although it is now possible to do that, just very expensive.
It is very easy to produce. A. K Geim and K. S. Novoselov used just a scotch tape and a graphite rock to produce graphene. They were awarded Nobel Prize in 2010 for this simple method. It might be hard to separate it from the sheet of paper so they have invented new methods for synthesising.
Try and put an ohm meter on a pencil lead which is graphite and you will find it is a conductor. Showing that the thin film of graphite conducts electricity does not validate that you have graphene. Graphene is a great conductor of electricity and you would have very small resistance in the thousandths of an ohm.
If you do middle east english class for English people i would like to come as i work in dubai. If i want to work here in dubai further i should learn this language sir please Help me.
I thought he was gonna do the thing where graphite flakes are place on a tape which if folded into half to separate the layer of carbon lattice and do this number of times to be left with a single layer
A very good demonstration that you have done here that you can deposit graphene sheets on a soft layer such as plastic BUT will this work on Glass ?? I suspect it but can you try on glass surface? because plastic is soft and has long strains of polymerized molecules of very low hardness while glass has high hardness about 7 and may not allow the build up of connecting layers of graphene on its surface.
Anyone. Make graphene. And show to the world if the world can see it. And if a sheet pf graphene is made somehow then put an elephant over it to test. Lets see what you got 💪
I made this before from 2009 to a very thin sheet of glass and l made a very efficient photo voltaic with titanium oxide and compiled tow important characteristic a photo sell with chargeable battery
Jamal the definition of Graphene is a sheet ONE CARBON ATOM THICK! It is NOT A POWDER BY DEFINITION. What you appear to be using is graphite powder! Don't you think the whole industry would be using this if it were really Graphene. Let's have some common sense here please!
Bob Lewis do you know that the particles are not each a one carbon atom thick sheet of carbon? Do you know that industry is not using graphene like this?
drdca please go and reference the DEFINITION of Graphene. Anything that is NOT a sheet, one atom thick is NOT Graphene but some other form of graphite. Don't take my word for it, check out the Wiki!
salayy graphene nahi graphite power bol uss sayy graphene bnayy ga tu sala phalayy hi graphene paper layy lia maha pagall hayy yarr isayy magal parr send karo
It is too thick to be called graphene
it is just a graphite layer...
W. Hermann because Graphene is just one atom thick! It is totally transparent and by definition ONLY comes as a single sheet not in powder form.
Bob Lewis Are you sure?
What if each particle there is a very small sheet of carbon one atom thick, but because each sheet is so small in area (though being composed of many atoms) we only see them as specks of dust?
@DW H, of course, graphene is theoretical its engineering is almost impossible
@@taiwoolaleye6333 so are you saying making graphene is impossible.
@@sslee8531 what? no, i was saying its very hard to do at least in one continuous roll, bu cvd looks promising
The principle process is that the graphite(millions of graphene molecules jumbled together) is spread out in a 'thick' layer on the smooth plastic sheet, so the bottom graphenes stick to the surface, and those above are rubbed away to nearby bare plastic, where they too can stick to the surface. If you do this enough, (10-20 minutes, until there is no bare surface) and the entire surface is only 1 (molecule) layer thick, you will get no more black when you wipe with a fresh white tissue (no more stacked layers to rub off). The rubbing has also (mostly) crunched the edges of the stuck graphene sheets together (electrically), making a single large molecule of graphene on the plastic surface with pretty good conductivity. If you looked with a powerful microscope, you could see the very thin 'decoupage'-like effect (or like black sea-ice pack) with quite a few irregularities where the original graphene molecules were pushed edge-to-edge into one-another. The softer the paper and the harder you rub, the better the joints and total conductivity will be as it snaps loose the overlaps, and pushes the shards into other gaps of exposed plastic surface. (It is a little like pouring out dominoes, and spreading them out into a single layer.)
AAAWhat happen when we wash it
graphene is not known for it's single atom layer specifically but for it's structure.... It's not that easy to manufacture... Until now it has only been made up to size of a credit card through very tough processes and a hell lot of capitol..... We can't make graphene just like that by rubbing...
"Graphene molecules"
Do you know what graphene is?
@@anmo9312 and we can't make people smarter by insulting them. It just makes them become defensive.
@@alansmithee419 happy 😊 !!
You use powder graphite, when the plastic surface is covered, graphite is exfoliated mechanically, so, the conductive property is due to few-layer graphene. Just an illustrative example.
This seems a little too rudimentary
THAT is NOT Graphene! THAT is just a graphite coated surface which you could do with an ordinary pencil (shave off some graphite). A simpler and better way to achieve an evenly coated surface (STILL not Graphene!) would be to use colloidal graphite. This is the stuff sold as Permostat for coating PVC records to avoid surface static build up - and it works brilliantly!
True Graphene is VERY difficult to produce in large sheets. If it were THIS easy, don't you think there would be DOZENS of manufacturers lined up producing the stuff? TRUE Graphene is just ONE atom thick and would be WAY stronger than the polythene sheet substrate on which this process is dependent. Epic FAIL I'm afraid.
Bob Lewis more like you dont understand graphene production. Graphite is just billions of layers of graphene. There are chemical processes to separate the layers into chunks of graphene but the end result is a powder. The difference is that with the graphene powder, even just rubbing it onto the plastic surface will force the millions of layers to connect with each other at the very base of the plastic, forming a very crude sheet of graphene. If he were to continue rubbing for a while eventually only the graphene will be left on the plastic.
abraham_102 on the contrary I understand what Graphene and graphite are only too well and the fact that graphite is comprised of layers. My two points remain:
1. THAT is NOT Graphene, for the reasons already outlined.
2. If it were to be such a simple process to produce Graphene then why are some of the most brilliant minds in the industry NOT using this method? Do you somehow think that IBM (one of the biggest researchers in this field) would not jump at the chance to use such a simple method to produce quantities of the stuff even if just for research? Please! Give me a break! 🤔🤔😵😵
mud eel REALLY! Please quote your sources! What do you mean by "bulk"? Sheets 1m X say 1m? 20cm X 20 cm? Or just 0.5mm X 0.5mm? The whole industry would just LOVE to know how YOU can produce just ONE 1m sq sheet never mind hundreds of thousands of square metres!
Bob Lewis look up a channel called the thought emporium. Also, graphene production is really easy. Whats difficult is making high quality graphene for research purposes. Calm down, drink some humble tea. Also, a bunch of researchers just recently published a method for mass production of graphene. What you are saying wouldve been true a decade ago. Nowadays, not really. There are simple ways of making shitty quality graphene, and expensive high quality methods.EDIT: you DO realize that graphene sheets come in microscopic sized chunks right? No is saying you can make huge 1m squared sheets of the stuff. Although it is now possible to do that, just very expensive.
It is very easy to produce. A. K Geim and K. S. Novoselov used just a scotch tape and a graphite rock to produce graphene. They were awarded Nobel Prize in 2010 for this simple method.
It might be hard to separate it from the sheet of paper so they have invented new methods for synthesising.
How is it possible to deposit graphene on a plastic sheet. What kind of bonding is there??
a single layer of graphene is at least 1000 times thinner than paper so just rub on plastic ir will deposit on surface
Try and put an ohm meter on a pencil lead which is graphite and you will find it is a conductor. Showing that the thin film of graphite conducts electricity does not validate that you have graphene. Graphene is a great conductor of electricity and you would have very small resistance in the thousandths of an ohm.
1:20
So this is carefully (1:31)done
Or slowly (0:54) done
Lol😂😂😂
Better than a pentium 2. Just pop that bad boy into a laptop and you got gold
Hey that is sheet not seet
Well Done, Sir. Can you make a MosFET-like Relais from it? A kind of a new graphen transistor?
Greatings from bavaria/germany.
You must need to show TEM images about your "graphene" it looks graphite powder
He is hundred percent of Bengali origin
Yes bro 😎
Graphene scam haha
Yes
Right
Me too today I have invented a brand new material, it's a "are you kidding me" composite
thank you for this video vv good
Sputter deposition (PVD) of graphite will make graphene layer?
Graphite ko Graphene bol raha he 😂
Agar Tu itna easy graphene bana leta na to tuje rato rato America vale utha le jate 😂😂😂
If you do middle east english class for English people i would like to come as i work in dubai. If i want to work here in dubai further i should learn this language sir please Help me.
I thought he was gonna do the thing where graphite flakes are place on a tape which if folded into half to separate the layer of carbon lattice and do this number of times to be left with a single layer
Me too
Well done bro
I love you bro you are so beautiful and your accent is insane
real iron man is bald
why dont u speak hindi... English is not mendetory.
Not everyone speaks hindi ? Even if it's not spelt correctly is still better than being not understandable to the most.
i think he is Chinese see the description the video
What's "mendetory"? Is that where you're always mending things?
Which plastic sheet you have used???
Now dissolve the plastic in a chemical that doesn't react with carbon to produce a sheet of graphene or is it too flimsy to retain it's structure?
How can u even think of that idiot..... Graphene isn't that easy to manufacrure.... Lol
What is seet
shit
To eat
@W. Hermann plarstic seet
RIP resistance
Haaa haaaa baby sitting student haaaa haa
This is not graphene baby haaaaa
This is like science super conductor porno for my brain....rubit in harder damit! Yes that's it!
Nice Sir
I don't think this is nice at all
Hi! Can u please say how to make a graphene solar panels???
Boxnever Nono Add graphene to your panels
Rip English
This will not work after some time.
lol, I have aluminum tape that'll probably make it work better
Why so?
Thanku sir
the easy way to make a conductive sheet is just dip it in tap water! =)
A very good demonstration that you have done here that you can deposit graphene sheets on a soft layer such as plastic BUT will this work on Glass ?? I suspect it but can you try on glass surface? because plastic is soft and has long strains of polymerized molecules of very low hardness while glass has high hardness about 7 and may not allow the build up of connecting layers of graphene on its surface.
Where do you get the graphene
Best try ..!
Where to sell graphene?
why carefully
Is it become too strong like steal, to prove the strongness property of graphene???
I want to transfer some plastic shit too....
"This is graphene dust"
I don't think you know what graphene is.
Alt Science?
Good one.
Ek baat batao nahi aati to kyu bolte ho ??! Hindi bolne me Sharam aati hai ? Local language bolo na !
Anyone. Make graphene. And show to the world if the world can see it. And if a sheet pf graphene is made somehow then put an elephant over it to test. Lets see what you got 💪
That hairline
How did you make the graphene?
How to contact you ?
what a english bhaya
Kya English hai. jor daar
Kuch kam nahi hain kya
First see what is the definition of graphin
If you can't speak English you don't need to. Speak Hindi........
ur bangali?
this is my ✊ show your face
Emporers new clothes
this does work
hindi mai batao na bhai..
Hindi ma bool
I made this before from 2009 to a very thin sheet of glass and l made a very efficient photo voltaic with titanium oxide and compiled tow important characteristic a photo sell with chargeable battery
haahaaa u just use a characteristic of carbon
good jukes man xDDDD
Pastic shit 👏 tisu peper👏👏 pise of grephene😂😂
Wa was engilsh
Hlo sir
I just heard
This is plastic shit😂
Also ... Graphene does NOT come as a powder!
Bob Lewis Graphene does come in powder, 1.5 kilos of it is equivalent to a gallon
Jamal the definition of Graphene is a sheet ONE CARBON ATOM THICK! It is NOT A POWDER BY DEFINITION. What you appear to be using is graphite powder! Don't you think the whole industry would be using this if it were really Graphene. Let's have some common sense here please!
Bob Lewis do you know that the particles are not each a one carbon atom thick sheet of carbon? Do you know that industry is not using graphene like this?
drdca please go and reference the DEFINITION of Graphene. Anything that is NOT a sheet, one atom thick is NOT Graphene but some other form of graphite. Don't take my word for it, check out the Wiki!
salayy graphene nahi graphite power bol uss sayy graphene bnayy ga tu sala phalayy hi graphene paper layy lia maha pagall hayy yarr isayy magal parr send karo
FAKE
Lol 😂😂😂😂🥴🥴🥴
This is a cond...
😂😂 uctor
.
😂😂😂😂😂😂
😂😂😂
If
+Maria Henilde If? What do you mean "if"?
Bebakuf kahi ka
Kya chutiyapa hai Bhai English nhi aati hai to video Hindi me bnao Kam se Kam dislike to nhi milege