Thickness-dependent azobenzene doping in mono- and few-layer graphene
Doping effects on exfoliated graphenes induced by methyl orange (MO) have been studied by spatially resolved Raman spectroscopy. When the MO molecules were adsorbed on the top of graphenes, the charge transfer between them caused two outcomes simultaneously. One is the strong chemical doping in grap...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/96154 http://hdl.handle.net/10220/10794 |
| _version_ | 1811681696992460800 |
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| author | Peimyoo, Namphung Yu, Ting Shang, Jingzhi Cong, Chunxiao Yang, Huanping |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Peimyoo, Namphung Yu, Ting Shang, Jingzhi Cong, Chunxiao Yang, Huanping |
| author_sort | Peimyoo, Namphung |
| collection | NTU |
| description | Doping effects on exfoliated graphenes induced by methyl orange (MO) have been studied by spatially resolved Raman spectroscopy. When the MO molecules were adsorbed on the top of graphenes, the charge transfer between them caused two outcomes simultaneously. One is the strong chemical doping in graphenes and the other is the enhanced Raman signals of MO molecules. Our finding provides a potential approach for manipulating the electronic properties of graphenes and investigating the vibrational properties of molecules. Moreover, the thickness-dependent doping effects in graphenes are unambiguous distinguished by Raman imaging. The possible origin was discussed and designated to the different band structures of graphenes and the screening effect. |
| first_indexed | 2024-10-01T03:45:03Z |
| format | Journal Article |
| id | ntu-10356/96154 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:45:03Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/961542020-03-07T12:37:08Z Thickness-dependent azobenzene doping in mono- and few-layer graphene Peimyoo, Namphung Yu, Ting Shang, Jingzhi Cong, Chunxiao Yang, Huanping School of Physical and Mathematical Sciences Doping effects on exfoliated graphenes induced by methyl orange (MO) have been studied by spatially resolved Raman spectroscopy. When the MO molecules were adsorbed on the top of graphenes, the charge transfer between them caused two outcomes simultaneously. One is the strong chemical doping in graphenes and the other is the enhanced Raman signals of MO molecules. Our finding provides a potential approach for manipulating the electronic properties of graphenes and investigating the vibrational properties of molecules. Moreover, the thickness-dependent doping effects in graphenes are unambiguous distinguished by Raman imaging. The possible origin was discussed and designated to the different band structures of graphenes and the screening effect. 2013-06-27T04:36:10Z 2019-12-06T19:26:24Z 2013-06-27T04:36:10Z 2019-12-06T19:26:24Z 2011 2011 Journal Article Peimyoo, N., Yu, T., Shang, J., Cong, C., & Yang, H. (2012). Thickness-dependent azobenzene doping in mono- and few-layer graphene. Carbon, 50(1), 201-208. 0008-6223 https://hdl.handle.net/10356/96154 http://hdl.handle.net/10220/10794 10.1016/j.carbon.2011.08.035 en Carbon © 2011 Elsevier Ltd. |
| spellingShingle | Peimyoo, Namphung Yu, Ting Shang, Jingzhi Cong, Chunxiao Yang, Huanping Thickness-dependent azobenzene doping in mono- and few-layer graphene |
| title | Thickness-dependent azobenzene doping in mono- and few-layer graphene |
| title_full | Thickness-dependent azobenzene doping in mono- and few-layer graphene |
| title_fullStr | Thickness-dependent azobenzene doping in mono- and few-layer graphene |
| title_full_unstemmed | Thickness-dependent azobenzene doping in mono- and few-layer graphene |
| title_short | Thickness-dependent azobenzene doping in mono- and few-layer graphene |
| title_sort | thickness dependent azobenzene doping in mono and few layer graphene |
| url | https://hdl.handle.net/10356/96154 http://hdl.handle.net/10220/10794 |
| work_keys_str_mv | AT peimyoonamphung thicknessdependentazobenzenedopinginmonoandfewlayergraphene AT yuting thicknessdependentazobenzenedopinginmonoandfewlayergraphene AT shangjingzhi thicknessdependentazobenzenedopinginmonoandfewlayergraphene AT congchunxiao thicknessdependentazobenzenedopinginmonoandfewlayergraphene AT yanghuanping thicknessdependentazobenzenedopinginmonoandfewlayergraphene |