Effect of substrates on covalent surface modification of graphene using photosensitive functional group
文献类型：期刊论文
| 作者 | Saini, Deepshikha |
| 刊名 | INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
 |
| 出版日期 | 2015-02-01 |
| 卷号 | 106期号:2页码:176-183 |
| 关键词 | Graphene Photosensitive Azobenzene Covalent Modification Octadecyltrichlorosilane Raman Spectroscopy |
| ISSN号 | 1862-5282 |
| DOI | 10.3139/146.111163 |
| 英文摘要 | Graphene has gained much significance for its potential applications in optics and electronics owing to its unique physical and chemical properties. Nevertheless, its gapless band structure greatly limits its wider application in opto-electronic devices. The present study seeks to explore chemical functionalization as an effective method to tune the properties of graphene. Covalent modification of graphene.by aryl diazonium salt of a photosensitive functional group (azobenzene) has been used to achieve this goal. This is based on the fact that graphene is a two-dimensional, atomically thin lattice of sp(2)-bonded carbon atoms, therefore, its properties can be modulated by modifying the underlying dielectric surface with a self-assembled monolayer resulting in doping control. In the study, a clear difference in the rate of electron-transfer reactions with the photosensitive functional group is shown for monolayer graphene supported on SiO2/Si substrates and organic molecule functionalized SiO2/Si substrates. Graphene supported on SiO2/Si is more reactive towards functionalization than graphene on organic molecule functionalized surfaces, as shown by Raman spectroscopy. The transport characteristics of functionalized graphene on conventional SiO2/Si substrates as well as substrates modified with organic molecule octadecyltrichlorosilane self-assembled monolayers are also explored and compared. |
| 语种 | 英语 |
| WOS记录号 | WOS:000349808400009 |
| 出版者 | CARL HANSER VERLAG |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/53295]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Saini, Deepshikha |
| 作者单位 | Peking Univ, Coll Chem & Mol Engn, Ctr Nanochem, BNLMS,State Key Lab Struct Chem Unstable & Stable, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Saini, Deepshikha. Effect of substrates on covalent surface modification of graphene using photosensitive functional group[J]. INTERNATIONAL JOURNAL OF MATERIALS RESEARCH,2015,106(2):176-183. |
| APA | Saini, Deepshikha.(2015).Effect of substrates on covalent surface modification of graphene using photosensitive functional group.INTERNATIONAL JOURNAL OF MATERIALS RESEARCH,106(2),176-183. |
| MLA | Saini, Deepshikha."Effect of substrates on covalent surface modification of graphene using photosensitive functional group".INTERNATIONAL JOURNAL OF MATERIALS RESEARCH 106.2(2015):176-183. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。