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Graphene
Posted: Sat May 21, 2011 2:11 pm
by ladajo
I am sure we talked about this before, but the parallels to "polywell" development were too tempting.
"But the main thing is to be truthful and not exaggerate because we actually have to deliver."
http://news.bbc.co.uk/2/hi/programmes/c ... 491789.stm
Posted: Sat May 21, 2011 6:22 pm
by MSimon
"The material itself does not have a band gap, an essential property [meaning that graphene cannot stop conducting and be 'switched off', making it unusable in this way]. The applications of graphene and the application of silicon are in different domains."
Problem or opportunity? Graphene "semiconductors" have a tunable band gap.
So far in the 0 to 100 mv range. Germanium is 300 mv. Silicon is 600 mv. And IIRC SiC comes in at 1,200 mv.
Posted: Sat May 21, 2011 6:24 pm
by ladajo
SiC was 1200mv?
I recall when Sandia(?) came up with it. I remember thinking hard on how to start up a supply company for it. The heat resistance is huge.
For Graphene, I am going to have to do a little more research. But I see its utilility up front.
Posted: Sat May 21, 2011 6:43 pm
by MSimon
ladajo wrote:SiC was 1200mv?
I recall when Sandia(?) came up with it. I remember thinking hard on how to start up a supply company for it. The heat resistance is huge.
For Graphene, I am going to have to do a little more research. But I see its utilility up front.
http://en.wikipedia.org/wiki/Silicon_carbide
2,360 to 3,230 mv depending on structure. So I remembered it wrong.
Posted: Sat May 21, 2011 7:52 pm
by ladajo
no drama. thanks for checking.