PopularFX
Home Help Search Login Register
Welcome,Guest. Please login or register.
OverUnity Research > News, Announcements, and Current Events > The Buzz > An energy-harvesting circuit based on Graphene - that works!
2024-11-26, 05:26:31
News: Check out the Benches; a place for people to moderate their own thread and document their builds and data.
If you would like your own Bench, please PM an Admin.
Most Benches are visible only to members.

Pages: [1]
Author Topic: An energy-harvesting circuit based on Graphene - that works!  (Read 1386 times)
Topic Options img
img  PhysicsProf
An energy-harvesting circuit based on Graphene - that works! « on: 2020-10-06, 12:16:26 »
Group: Professor
Hero Member
*****

Posts: 3017
Exciting discovery by fellow Physicists that may soon impact your life:

""An energy-harvesting circuit based on graphene could be incorporated into a chip to provide clean, limitless, low-voltage power for small devices or sensors," said Paul Thibado, professor of physics and lead researcher in the discovery.

"The findings, published in the journal Physical Review E, are proof of a theory the physicists developed at the U of A three years ago that freestanding graphene—a single layer of carbon atoms—ripples and buckles in a way that holds promise for energy harvesting.

"The idea of harvesting energy from graphene is controversial because it refutes physicist Richard Feynman's well-known assertion that the thermal motion of atoms, known as Brownian motion, cannot do work. Thibado's team found that at room temperature the thermal motion of graphene does in fact induce an alternating current (AC) in a circuit, an achievement thought to be impossible."

Then they use two diodes to produce pulsed-DC.
Read more: 
https://phys.org/news/2020-10-physicists-circuit-limitless-power-graphene.html?fbclid=IwAR3f79F32OYDK14opzP-1Kc0VbuGvbEVuorkywnPDtO2BWocaLCD1lkfV6A
   
img  LaserSaber
Re: An energy-harvesting circuit based on Graphene - that works! « Reply #1 on: 2020-10-06, 17:56:38 »

Newbie
*

Posts: 8
Very interesting!  Thanks for sharing.
   
img  Chet K
Re: An energy-harvesting circuit based on Graphene - that works! « Reply #2 on: 2020-10-06, 18:26:10 »
Group: Ambassador
Hero Member
*****

Posts: 4045
Member bistander started topic here

https://overunity.com/18650/harvesting-free-energy-from-graphene/msg551555/#msg551555

However that forum has been in upheaval again recently

So not much response

Thanks
Chet
   
img  Allcanadian
Re: An energy-harvesting circuit based on Graphene - that works! « Reply #3 on: 2020-10-09, 00:20:55 »
Hero Member
*****

Posts: 2735
Graphene makes perfect sense because the material can be made atoms thick and still remain semi rigid. As well the theory is sound, if two Casimir plates attract because the EM waves between them interact. Then said EM waves could also cause the thin yet semi rigid graphene plates to oscillate. This does not violate feynman theory that the thermal motion of atoms cannot do work because it is not individual atoms but a thin layer of them.

Now if the thin layers of graphene self oscillate then it's simply a matter of coordinating the action electrically or doping the layers to direct the electron current.

This is also in line with my theories of where the energy in free energy devices actually comes from. It also begs the question...if feynman's theory is correct then why do many FE devices drop in temperature?. This represents a loss of thermal motion therefore feynman may be incorrect, I believe he is.

Edit, just read the article after I posted, I was correct and just told them how to integrate the diode into the substrate, lol.

Regards


---------------------------
Comprehend and Copy Nature... Viktor Schauberger

“The first principle is that you must not fool yourself and you are the easiest person to fool.”― Richard P. Feynman
   
img  PhysicsProf
Re: An energy-harvesting circuit based on Graphene - that works! « Reply #4 on: 2020-10-09, 00:30:26 »
Group: Professor
Hero Member
*****

Posts: 3017
Quote from: Allcanadian on 2020-10-09, 00:20:55
Graphene makes perfect sense because the material can be made atoms thick and still remain semi rigid. As well the theory is sound, if two Casimir plates attract because the EM waves between them interact. Then said EM waves could also cause the thin yet semi rigid graphene plates to oscillate. This does not violate feynman theory that the thermal motion of atoms cannot do work because it is not individual atoms but a thin layer of them.

Now if the thin layers of graphene self oscillate then it's simply a matter of coordinating the action electrically or doping the layers to direct the electron current.

This is also in line with my theories of where the energy in free energy devices actually comes from. It also begs the question...if feynman's theory is correct then why do many FE devices drop in temperature?. This represents a loss of thermal motion therefore feynman may be incorrect, I believe he is.

Edit, just read the article, I was correct and just told them how to integrate the diode into the substrate, lol.

Regards

Is there any way for you to scale this up?  (Something missed in the article, perhaps)
   
img  Allcanadian
Re: An energy-harvesting circuit based on Graphene - that works! « Reply #5 on: 2020-10-09, 01:27:29 »
Hero Member
*****

Posts: 2735
Hey physicsprof

Yes, I believe there is and its important to look at the process conceptually. I recognized the process right away because many have done this in the past with respect to layered substrates from back in the early 1900's. It occupied a year of my research.

Conceptually we should be looking at integrating known effects. In this case graphene which is the only material we know of which has rigidity in extremely thin layers prone to oscillation because of the casimir effect. Then it's a matter of harnessing or directing said oscillations in a coordinated fashion. This relates to wave theory, similar to utilizing the casimir effect between two vibrating guitar strings. The EM wave induces a potential thus motion in the graphene layer alternately along the plane of the layer. Thus the oscillations must be tuned with respect to thickness, length and the EM wavelength between them.

One could dope the layers using something like plasma vapor deposition. However past inventors simply used different materials and a band gap like solar cells do. Do you see the similarities?, it may look like a multi-material substrate but it's the underlying casimir process which matters. Now rather than dope the layers they could dope themselves with a layer of oxidization know to have rectifying properties. The foxhole radio rectifier comes to mind.

There are so many angles to this it's a wonder anyone could call this new. Which is why when contemplating all the forms this could take we should always keep the context and concept in the fore front of our minds.

From my research, many in the past were producing power densities up to a few kW per cubic foot. Here density relates to how many molecular interactions we can produce per unit of volume. Thus the volume/surface area density is the power rating.

Regards


---------------------------
Comprehend and Copy Nature... Viktor Schauberger

“The first principle is that you must not fool yourself and you are the easiest person to fool.”― Richard P. Feynman
   
img  PhysicsProf
Re: An energy-harvesting circuit based on Graphene - that works! « Reply #6 on: 2020-10-09, 14:07:20 »
Group: Professor
Hero Member
*****

Posts: 3017
Quote from: Allcanadian on 2020-10-09, 01:27:29
Hey physicsprof

Yes, I believe there is and its important to look at the process conceptually. I recognized the process right away because many have done this in the past with respect to layered substrates from back in the early 1900's. It occupied a year of my research.

Conceptually we should be looking at integrating known effects. In this case graphene which is the only material we know of which has rigidity in extremely thin layers prone to oscillation because of the casimir effect. Then it's a matter of harnessing or directing said oscillations in a coordinated fashion. This relates to wave theory, similar to utilizing the casimir effect between two vibrating guitar strings. The EM wave induces a potential thus motion in the graphene layer alternately along the plane of the layer. Thus the oscillations must be tuned with respect to thickness, length and the EM wavelength between them.

One could dope the layers using something like plasma vapor deposition. However past inventors simply used different materials and a band gap like solar cells do. Do you see the similarities?, it may look like a multi-material substrate but it's the underlying casimir process which matters. Now rather than dope the layers they could dope themselves with a layer of oxidization know to have rectifying properties. The foxhole radio rectifier comes to mind.

There are so many angles to this it's a wonder anyone could call this new. Which is why when contemplating all the forms this could take we should always keep the context and concept in the fore front of our minds.

From my research, many in the past were producing power densities up to a few kW per cubic foot. Here density relates to how many molecular interactions we can produce per unit of volume. Thus the volume/surface area density is the power rating.

Regards

Very enlightening - thanks for this AC!
   
img  PhysicsProf
Re: An energy-harvesting circuit based on Graphene - that works! « Reply #7 on: 2020-10-15, 14:53:31 »
Group: Professor
Hero Member
*****

Posts: 3017
PS - I put the opening post (a version of it) on my page at Facebook.  Not a perfect place - my posts have been censored or deleted by FB about five times this year...  Still, a place where I am reaching out to friends and acquaintances across the globe.  Including notes on science and experiments that I perform.
Best regards,
Steven Jones of Albany, Missouri - that's how you might locate me on FB
   
img  muDped
Re: An energy-harvesting circuit based on Graphene - that works! « Reply #8 on: 2020-10-15, 21:46:29 »

Group: Tinkerer
Hero Member
*****

Posts: 3055
Quote from: PhysicsProf
Not a perfect place - my posts have been censored or deleted by FB about five times this year...

Isn't it very strange that in America, of all places, censorship and silencing have become what
seems the latest "weapon de jure?"  We've long taken pride in our "Freedom of Speech" and
have protected that freedom until fairly recently.

How does one explain it?  Why would any American, or freedom lover, ever embrace such conduct?

Our society is experiencing profound change.

Quote from: PhysicsProf
Steven Jones of Albany, Missouri - that's how you might locate me on FB

Thanks!  It is also good to see State Names spelled out!  Gratifying to see those who know
the difference.

Video:  Graphene Animation

« Last Edit: 2020-10-16, 00:49:19 by muDped »


---------------------------
For there is nothing hidden that will not be disclosed, and nothing concealed that will not be known or brought out into the open.
   
Pages: [1]
« previous next »


 

Home Help Search Login Register
Theme © PopularFX | Based on PFX Ideas! | Scripts from iScript4u 2024-11-26, 05:26:31