Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/83641
Title: Disorder induced bands in first order Raman spectra of carbon nanowalls
Authors: Wang, H.
Wu, Y. 
Choong, C.K.S.
Zhang, J.
Teo, K.L. 
Ni, Z.
Shen, Z.
Keywords: Carbon nanowalls
Defects
Edge effect
Raman scattering
Issue Date: 2006
Source: Wang, H.,Wu, Y.,Choong, C.K.S.,Zhang, J.,Teo, K.L.,Ni, Z.,Shen, Z. (2006). Disorder induced bands in first order Raman spectra of carbon nanowalls. 2006 6th IEEE Conference on Nanotechnology, IEEE-NANO 2006 1 : 219-222. ScholarBank@NUS Repository.
Abstract: Raman spectra of carbon nanowalls grown by microwave plasma enhanced chemical vapor deposition were analyzed. A typical Raman spectrum of carbon nanowalls exhibits three main bands, i.e., the G, D and D' bands centered at about 1580, 1350 and 1620 cm-1, respectively. The peak intensity ratio of D to G band (ID/IG) was found to be strongly influenced by edge length density of carbon nanowalls, suggesting that the strong D band is originated from the defects at the edges. The addition of water during the growth process increased the defects formed by water assisted oxidization which in turn, resulted in the increase of the D band's relative intensity. © 2006 IEEE.
Source Title: 2006 6th IEEE Conference on Nanotechnology, IEEE-NANO 2006
URI: http://scholarbank.nus.edu.sg/handle/10635/83641
ISBN: 1424400783
Appears in Collections:Staff Publications

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