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MIT Scientists Mix Graphene with Hexagonal Boron Nitride to Create New Material for Computer Chips.
Xbitlabs ^ | 05/22/2013 08:57 PM | Anton Shilov

Posted on 05/24/2013 9:49:30 AM PDT by Ernest_at_the_Beach

Researchers Create New Material for Semiconductors

Graphene has dazzled scientists, ever since its discovery more than a decade ago, with its unequalled electronic properties, its strength and its light weight. But one long-sought goal has proved elusive: how to engineer into graphene a property called a band gap, which would be necessary to use the material to make transistors and other electronic devices.

Now, new findings by researchers at MIT are a major step toward making graphene with this coveted property. The work could also lead to revisions in some theoretical predictions in graphene physics. The new technique involves placing a sheet of graphene – a carbon-based material whose structure is just one atom thick – on top of hexagonal boron nitride, another one-atom-thick material with similar properties. The resulting material shares graphene’s amazing ability to conduct electrons, while adding the band gap necessary to form transistors and other semiconductor devices.

“By combining two materials we created a hybrid material that has different properties than either of the two. Graphene is an extremely good conductor of electrons, while boron nitride is a good insulator, blocking the passage of electrons. We made a high-quality semiconductor by putting them together,” said Pablo Jarillo-Herrero, the assistant professor of physics at MIT.

To make the hybrid material work, the researchers had to align, with near perfection, the atomic lattices of the two materials, which both consist of a series of hexagons. The size of the hexagons (known as the lattice constant) in the two materials is almost the same, but not quite: Those in boron nitride are 1.8% larger. So while it is possible to line the hexagons up almost perfectly in one place, over a larger area the pattern goes in and out of register.

(Excerpt) Read more at xbitlabs.com ...


TOPICS: Business/Economy; Computers/Internet
KEYWORDS: boronnitride; graphene; graphenephysics; hightech; semiconductors; technology

1 posted on 05/24/2013 9:49:30 AM PDT by Ernest_at_the_Beach
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To: All; neverdem; ShadowAce; SunkenCiv; blam; Marine_Uncle
Related thread:

Sticky problem snares wonder material - Graphene-like form of silicon proves hard to handle.

2 posted on 05/24/2013 9:51:15 AM PDT by Ernest_at_the_Beach ((The Global Warming Hoax was a Criminal Act....where is Al Gore?))
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placemark


3 posted on 05/24/2013 9:57:06 AM PDT by piasa (Attitude adjustments offered here free of charge)
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To: All

Aligning two sheets ,....each one atom thick,.....weee bit more work to do!


4 posted on 05/24/2013 9:59:47 AM PDT by Ernest_at_the_Beach ((The Global Warming Hoax was a Criminal Act....where is Al Gore?))
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To: All

Silicon on Insulator is a pretty amazing precise technology....but they have been able to do that one.


5 posted on 05/24/2013 10:01:45 AM PDT by Ernest_at_the_Beach ((The Global Warming Hoax was a Criminal Act....where is Al Gore?))
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To: Ernest_at_the_Beach

Bump for later


6 posted on 05/24/2013 10:03:20 AM PDT by Lurkina.n.Learnin (President Obma; The Slumlord of the Rentseekers)
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To: rdb3; Calvinist_Dark_Lord; Salo; JosephW; Only1choice____Freedom; amigatec; stylin_geek; ...

7 posted on 05/24/2013 10:09:22 AM PDT by ShadowAce (Linux -- The Ultimate Windows Service Pack)
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To: FReepers
Looking For Donors


Click The Pic

Are You One?

8 posted on 05/24/2013 10:10:32 AM PDT by DJ MacWoW (My faith and politics cannot be separated)
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To: Ernest_at_the_Beach

Boron Nitride and Graphene to make a semiconductor.

Well... maybe they could wrap it up, or glue it together with Silicene ?


9 posted on 05/24/2013 10:11:14 AM PDT by UCANSEE2 (The monsters are due on Maple Street)
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To: Ernest_at_the_Beach

Thanks for posting. Interesting and promising technology.


10 posted on 05/24/2013 10:25:43 AM PDT by Starboard
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To: Ernest_at_the_Beach

Graphene’s the future.


11 posted on 05/24/2013 10:46:57 AM PDT by GOPJ (It's Gotten So Bad for Obama Fox News Changed Its Slogan to "See. I Told You So!"- Leno)
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To: GOPJ
Graphene’s the future.

Yes, super-capacitors, making composite tubing even stronger, maybe even solar cells.

Boron Nitride, if I am not mistaken is being used by the Israeli's for Nano Oil additive that is a quite the friction reducer.

12 posted on 05/24/2013 11:00:42 AM PDT by taildragger (( Tighten the 5 point harness and brace for Impact Freepers, ya know it's coming..... ))
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To: Ernest_at_the_Beach

Great, now I can build a Boronator!!!


13 posted on 05/24/2013 11:32:40 AM PDT by DannyTN
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To: Ernest_at_the_Beach; 1rudeboy

Why not skip the middle man( a US Corp that will off shore the process eventually anyway) and give the CHiComs the formula and the technology directly. / sarc


14 posted on 05/24/2013 11:39:03 AM PDT by central_va (I won't be reconstructed and I do not give a damn.)
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To: Ernest_at_the_Beach
Graphene has dazzled scientists, ever since its discovery more than a decade ago,

Has anybody made a commercially viable product yet?

15 posted on 05/24/2013 11:40:36 AM PDT by Moonman62 (The US has become a government with a country, rather than a country with a government.)
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To: Ernest_at_the_Beach

Had I read this a week back I would have questioned my cousin’s son who will be graduating this week from MIT with an undergrad in physics, as to if he had any part in some of the research being conducted on these emerging potential technologies.


16 posted on 05/24/2013 1:21:02 PM PDT by Marine_Uncle (Galt level is not far away......)
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To: Ernest_at_the_Beach
"...Graphene with Hexagonal Boron Nitride..."

I dunno, Ernest. Sounds like 2/3ds of gunpowder ................................................................................. FRegards

17 posted on 05/24/2013 1:51:34 PM PDT by gonzo ( Buy more ammo, dammit! You should already have the firearms ... FRegards)
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To: Ernest_at_the_Beach

Thanks Ernest.


18 posted on 05/24/2013 6:05:12 PM PDT by SunkenCiv (Romney would have been worse, if you're a dumb ass.)
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To: GOPJ; Ernest_at_the_Beach

Graphene’s the future.

*********

Enormous possibilities across a wide range of applications. Potentially a good long term investment IF you can find the right companies involved in its commercial development.


19 posted on 05/25/2013 7:03:48 AM PDT by Starboard
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To: taildragger
Boron Nitride, if I am not mistaken is being used by the Israeli's for Nano Oil additive that is a quite the friction reducer.

Quite the friction reducer - close to a perpetual motion machine??

20 posted on 05/25/2013 8:28:47 AM PDT by GOPJ (It's Gotten So Bad for Obama Fox News Changed Its Slogan to "See. I Told You So!"- Leno)
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To: GOPJ
Quite the friction reducer - close to a perpetual motion machine??

No, but something > 50% ( if my memory is correct ) reduction in friction and it may have self cleaning / healing properties for bearing and cylinder walls. I lost the link to the last two claims. Interesting stuff to say the least..

21 posted on 05/25/2013 9:51:48 AM PDT by taildragger (( Tighten the 5 point harness and brace for Impact Freepers, ya know it's coming..... ))
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