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Raman spectrum, Graphene

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  1. Aug 12, 2010 #1
    can anyone explain what is d band and g band in the Raman spectrum of graphene?
     
  2. jcsd
  3. Aug 13, 2010 #2
    It seems like physicists don't care about Raman Spectroscopy. I asked last time if someone could suggest a good book on Raman spec , but there was no single reply.
    Anyway,check the answers fro your question here: http://http://rsta.royalsocietypublishing.org/content/366/1863/231.full" [Broken]
     
    Last edited by a moderator: May 4, 2017
  4. Sep 12, 2010 #3
    They are different ways that the carbon atoms shake, I was trying to find a good picture online but couldn't quickly. But Raman spectrum obviously is a test of the phonon vibrational modes. There are different ways something can resonantly vibrate and there are different energies associated with the different vibrations.
     
  5. Oct 7, 2010 #4
    Hi all,
    I have a forest of carbon nanotubes. They are vertically aligned, like this picture:

    n:ANd9GcTfh-Avebnl3-R6X-_ey6fGY2bfrsC42QZqINQAWrz5AlQxsC8&t=1&usg=__NdivXYIhzzFITLeuC6u0rCBGeMk=.jpg

    I wonder if it is possible to get Raman spectra from the
    a) surface
    b) about 50nm from below the surface

    of the nanotubes?

    As far as I know, Raman spectroscopy is a surface analyzing method. For carbon nanotubes, I assume it should be the same. Now, I wonder if I can get Raman data for the two different positions of the nanotubes mentioned above.

    Thank you very much.
     
  6. Oct 22, 2010 #5
    Modern Raman Spectroscopy: A Practical Approach by Ewen Smith. But you need to practice ... (I'm adept of "learn by practice").
     
  7. Oct 23, 2010 #6
    I am working with Raman spectroscopy but I didn't enter for a long time on this forum.
    Tzontonel do you think we can share some information regarding Raman?
     
  8. Oct 23, 2010 #7
    If yes this is my email adress and I will be happy to discuss about some problems which I have using Raman taranu_a@yahoo.com If you want send me an email with the subject Raman
     
  9. Oct 23, 2010 #8
    By the way, two scientists from Univ of Manchester get the Nobel prize for graphene characterization and separation:) I don't know if they used Raman
     
  10. Oct 23, 2010 #9
    this was for toex
     
  11. Oct 23, 2010 #10
    I am really interrested in Raman spectrometry because is one of my subject for my PhD.
     
    Last edited by a moderator: May 5, 2017
  12. Oct 24, 2010 #11
    http://rdrs.uaic.ro" [Broken] - Romanian Database of Raman Spectroscopy [...]
    and I started a new project: http://ramandata.sourceforge.net/" [Broken] (I'm a child in JAVA, so this is another story ...). By the way, if you have time and a internet connection you can make and find anything. Just put a question or maybe you know - Google is you best friend.

    Later edit: where are you from? what type of spectrograph do you use? Organic? or Inorganic?
     
    Last edited by a moderator: May 5, 2017
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