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krisi
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3D?
krisi   8/26/2013 4:10:14 PM
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Graphene is really a two-dimensional layer of graphite...therefore 3D dimensional nature of 1-atom thick layer sounds puzzling...where is the throd dimension coming from? is it still graphene?

R_Colin_Johnson
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Re: 3D?
R_Colin_Johnson   8/26/2013 4:50:59 PM
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The researchers discussed this distinction, saying the the lithium carbonate shapes the graphene sheete, isolating them from each other and thereby preventing the formation of graphite. Then after the lithium carbonate is washed out with acid, only the 3-D graphene remains.

krisi
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Re: 3D?
krisi   8/26/2013 5:04:58 PM
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thank you Colin...I see it now...I don't think think this would work on a commercial scale

p_g
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Re: 3D?
p_g   8/27/2013 3:01:37 AM
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Whats your specific concern Krisi .. Are you worried about the process stability/reproducibility or your concern is process cost?

elctrnx_lyf
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Re: 3D?
elctrnx_lyf   8/27/2013 3:14:05 AM
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There is so mcuh going on about the solar cells and the best is yet to come. There could be a day we run only with solar energy.

krisi
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Re: 3D?
krisi   8/27/2013 11:22:49 AM
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All of above...the process looks very complicated

JanineLove
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Process
JanineLove   8/26/2013 5:04:59 PM
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How reliable is this process?

JanineLove
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Re: Process
JanineLove   8/26/2013 5:06:26 PM
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Any concern with the electrodes longevity/stability as compared to platinum?

R_Colin_Johnson
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Re: Process
R_Colin_Johnson   8/26/2013 5:14:56 PM
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So far the researchers have only tested 3-D graphene's conductivity and performance in die-sensitized solar cells. Next they will optimize the process, at which point they will likely address the issues of longevity and stability.

wilber_xbox
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Re: Process
wilber_xbox   8/27/2013 2:08:19 PM
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So, if i understood it correctly then 3D graphene is providing conductive interface to the outside world...then why not apply this technology to the normal semiconductor process? Or the application is only tuned for solar cells.

R_Colin_Johnson
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Re: Process
R_Colin_Johnson   8/27/2013 3:03:39 PM
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The 3D graphene is replacing the platinum electrode in a die sensitized solar cell, but the researchers believe it can also be used for other bulk-material applications, such as battery electrodes. Because it is made with a wet chemistry process, I would not expect the same technique to be used on chips which mostly use vapor deposition.

wilber_xbox
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Re: Process
wilber_xbox   8/28/2013 2:33:00 PM
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ok, thanks Colin. Maybe 2D Graphene will find a better place in chip in coming decade then.

R_Colin_Johnson
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Re: Process
R_Colin_Johnson   8/26/2013 5:09:52 PM
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I think the process itself is very reliable, since it is based on chemical reactions, which are usually reproducable.

DrQuine
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Solar Cell Evolution
DrQuine   8/26/2013 5:55:32 PM
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The weekly reports of promising breakthroughs in solar cell technology tell me that we're looking at a technology in the midst of rapid change. It would appear that patience is needed before building any fabrication plants since just about when they come on-line is the date that they're obsolete. I can't wait until the technology stabilizes at a new economical price point and solar cells become a very competitive product for home power generation.


krisi
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Re: Solar Cell Evolution
krisi   8/27/2013 11:24:26 AM
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There is lots of research on this topic but actualy very little evolution...despite all the hype you see about "other solutions" industry is now 99% silicond after CdTe exit

wilber_xbox
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Re: Solar Cell Evolution
wilber_xbox   8/27/2013 2:10:40 PM
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Graphene is the new wonder material on the block. It has come a long way since last decade but any real IC application is yet to be seen. 



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