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vasp001

金虫 (正式写手)

[交流] 【求助】请大家科普一下拉曼光谱的D-band,G-band,RBM 已有8人参与

在graphene,graphite,carbon nanotube中,请问这几个带,是如何在拉曼光谱上确定的?尤其是,这个RBM(径向呼吸模式) 有什么特殊的地方吗?

[ Last edited by vasp001 on 2010-7-8 at 21:59 ]
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一定要精通MaterialsStudios,VASP.
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xirainbow

木虫 (正式写手)

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小木虫(金币+0.5):给个红包,谢谢回帖交流
zzy870720z(金币+1):感谢交流 2010-07-08 20:00:09
D,G,2D,G’,RBM都是graphene,graphite,carbon nanotube中才出现的
而你的问题中居然没有丝毫提到carbon
这么问,很难有人回答
3楼2010-07-08 19:03:55
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y1ding

铁杆木虫 (著名写手)

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小木虫(金币+0.5):给个红包,谢谢回帖交流
hedaors(金币+1):Thanks 2010-07-08 07:45:16
引用回帖:
Originally posted by vasp001 at 2010-07-06 19:18:29:
请问这几个带,是如何在拉曼光谱上确定的?尤其是,这个RBM(径向呼吸模式) 有什么特殊的地方吗?

既然是中科大,直接问你们李震宇或者潘必才老师好了。
印象中这两位老师做过相关工作
2楼2010-07-08 00:22:49
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vasp001

金虫 (正式写手)

引用回帖:
Originally posted by y1ding at 2010-07-08 00:22:49:

既然是中科大,直接问你们李震宇或者潘必才老师好了。
印象中这两位老师做过相关工作

挂不住了,李振宇就是我们实验室的。
一定要精通MaterialsStudios,VASP.
4楼2010-07-08 22:04:33
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valenhou001

至尊木虫 (职业作家)

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小木虫(金币+0.5):给个红包,谢谢回帖交流
zzy870720z(金币+2):谢谢侯老师指教 2010-07-11 10:42:18
可以读读下面的3篇文献:
Phys. Chem. Chem. Phys., 2007, 9, 1276 - 1290, DOI: 10.1039/b613962k

Studying disorder in graphite-based systems by Raman spectroscopy

M. A. Pimenta, G. Dresselhaus, M. S. Dresselhaus, L. G. Cançado, A. Jorio and R. Saito
http://www.rsc.org/Publishing/Jo ... le.asp?doi=b613962k

J. Chem. Phys. 53, 1126 (1970); doi:10.1063/1.1674108 (5 pages)
Raman Spectrum of Graphite
F. Tuinstra and J. L. Koenig
http://jcp.aip.org/jcpsa6/v53/i3/p1126_s1?isAuthorized=no

Raman Spectroscopy of Carbon Nanotubes in 1997 and 2007
M. S. Dresselhaus,*‡ G. Dresselhaus,§ and A. Jorio
J. Phys. Chem. C, 2007, 111 (48), pp 17887–17893
DOI: 10.1021/jp071378n
http://pubs.acs.org/doi/abs/10.1021/jp071378n


下面的这一段话是从文献J. Phys. Chem. C 2008, 112, 10637–10640的Introduction拷贝出来的。
Raman spectroscopy has historically been used to probe
structural and electronic characteristics of graphite materials,
providing useful information on the defects (D-band), in-plane
vibration of sp2 carbon atoms (G-band), as well as the stacking
orders (2D-band).5 The G-band of graphite materials is a doubly
degenerate (TO and LO) phonon mode (E2g symmetry) at the
Brillouin zone center,6 whereas the D-band is due to phonon
branches around the K point and requires a defect for its
activation.5 The evolution of the 2D-band for different graphene
sheets has been used for determining graphene thickness as well
as for probing electronic structures through the double resonance
process.7,8 The symmetric and sharp 2D-band (~30 cm-1) can
be used as a detector for monolayer graphene.7,8
5楼2010-07-11 09:19:24
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