Comments for Raghunath Murali http://www.mirc.gatech.edu/raghu Graphene and Nanotech Tue, 24 Nov 2009 07:55:35 +0000 http://wordpress.org/?v=2.7.1 hourly 1 Comment on Graphene Growth by tbeck http://www.mirc.gatech.edu/raghu/?page_id=166&cpage=1#comment-33 tbeck Thu, 04 Jun 2009 21:25:02 +0000 http://www.mirc.gatech.edu/raghu/?page_id=166#comment-33 This article is meant to be a very general overview of graphene growth processes. I apologize for the confusion over the discovery of graphene - I understand Geim did not discover it however, it is my understanding, that he was the first to isolate it as a free standing material. I have re-worded the text to be more specific to this. Walt de Heer and his group have done great work on graphene growth but I wrote this article as a general overview of growth techniques. I only include Geim's work because I feel this work was important in showing graphene could be isolated and be used as an electronic material. On the second point, I did not intend to claim that exfoliated graphene is of any better quality. I have given a basic overview of three methods currently being investigated and given some pros and cons to each. I intentionally did not draw conclusions as to which method produces superior graphene. I have left this up to the reader to further investigate on his/her own. Thank You for your Comments, TJ Beck This article is meant to be a very general overview of graphene growth processes. I apologize for the confusion over the discovery of graphene - I understand Geim did not discover it however, it is my understanding, that he was the first to isolate it as a free standing material. I have re-worded the text to be more specific to this. Walt de Heer and his group have done great work on graphene growth but I wrote this article as a general overview of growth techniques. I only include Geim’s work because I feel this work was important in showing graphene could be isolated and be used as an electronic material.

On the second point, I did not intend to claim that exfoliated graphene is of any better quality. I have given a basic overview of three methods currently being investigated and given some pros and cons to each. I intentionally did not draw conclusions as to which method produces superior graphene. I have left this up to the reader to further investigate on his/her own.

Thank You for your Comments,

TJ Beck

]]> Comment on Graphene Growth by Edward H Conrad http://www.mirc.gatech.edu/raghu/?page_id=166&cpage=1#comment-32 Edward H Conrad Thu, 04 Jun 2009 19:51:31 +0000 http://www.mirc.gatech.edu/raghu/?page_id=166#comment-32 I would like to point out two important errors in this website. First, graphene was not discovered by Geim! It was discovered in 1975 by von Bommel and in 1999 (well before Giem) it was shown how graphene could be isolated by Forbeaux. I would be happy to give you the relevant references. It seems a little odd that the work by de Heer was never referenced even though he is a GT faculty. The second point is that exfoliated graphene is not of better quality. Again I would be happy to give you the relevant numbers. Epitaxial graphene can now be easily controlled, made to grow over many inches and has order of magnitude better physical properties. Sincerely, Ed Conrad I would like to point out two important errors in this website. First, graphene was not discovered by Geim! It was discovered in 1975 by von Bommel and in 1999 (well before Giem) it was shown how graphene could be isolated by Forbeaux. I would be happy to give you the relevant references. It seems a little odd that the work by de Heer was never referenced even though he is a GT faculty.

The second point is that exfoliated graphene is not of better quality. Again I would be happy to give you the relevant numbers. Epitaxial graphene can now be easily controlled, made to grow over many inches and has order of magnitude better physical properties.

Sincerely,

Ed Conrad

]]> Comment on Energy dissipation in Graphene Transistors by AndrewBoldman http://www.mirc.gatech.edu/raghu/?p=135&cpage=1#comment-31 AndrewBoldman Thu, 04 Jun 2009 19:35:07 +0000 http://www.mirc.gatech.edu/raghu/?p=135#comment-31 Hi, good post. I have been woondering about this issue,so thanks for posting. I’ll definitely be coming back to your site. Hi, good post. I have been woondering about this issue,so thanks for posting. I’ll definitely be coming back to your site.

]]> Comment on Logic gate in Graphene by Raghu http://www.mirc.gatech.edu/raghu/?p=133&cpage=1#comment-5 Raghu Tue, 21 Apr 2009 23:14:51 +0000 http://www.mirc.gatech.edu/raghu/?p=133#comment-5 Thanks for the link...very intelligent use of electrical annealing to shift the Dirac point. This is the first demonstration of a graphene inverter. Thanks for the link…very intelligent use of electrical annealing to shift the Dirac point. This is the first demonstration of a graphene inverter.

]]> Comment on Logic gate in Graphene by Roman Sordan http://www.mirc.gatech.edu/raghu/?p=133&cpage=1#comment-4 Roman Sordan Tue, 21 Apr 2009 23:05:49 +0000 http://www.mirc.gatech.edu/raghu/?p=133#comment-4 You might find this one even more interesting: http://arxiv.org/abs/0904.2745 You might find this one even more interesting:
http://arxiv.org/abs/0904.2745

]]> Comment on First Graphene MRSEC Workshop by Ryan http://www.mirc.gatech.edu/raghu/?p=38&cpage=1#comment-3 Ryan Tue, 14 Apr 2009 17:46:16 +0000 http://www.mirc.gatech.edu/raghu/new/wordpress/?p=38#comment-3 Its a members only site... can you put up the list here? Its a members only site… can you put up the list here?

]]> Comment on Nano-economy by guest http://www.mirc.gatech.edu/raghu/?p=1&cpage=1#comment-2 guest Mon, 13 Apr 2009 22:54:52 +0000 http://www.mirc.gatech.edu/raghu/new/wordpress/?p=1#comment-2 At what URL was your previous blog at? At what URL was your previous blog at?

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