| Grain-Boundary-Induced Ultrasensitive Molecular Detection of Graphene Film | |
| Zhou, Tianya1,2; Xu, Chuan1,2; Ren, Wencai1,2 | |
| 通讯作者 | Ren, Wencai(wcren@imr.ac.cn) |
| 2022-12-01 | |
| 发表期刊 | NANO LETTERS
 |
| ISSN | 1530-6984 |
| 页码 | 9 |
| 摘要 | Graphene has been considered a promising platform for molecular detection due to the graphene-enhanced Raman scattering (GERS) effect. However, the GERS performance of pristine graphene is limited by a low chemically active surface and insufficient density of states (DOS). Although diverse defects have been introduced, it remains a great challenge to improve the enhancement performance. Here, we show that graphene grain boundaries (GBs) possess stronger adsorption capacity and more abundant DOS. Thus, GERS performance increases with the atomic percentage of GBs, which makes nanocrystalline graphene (NG) film a superior GERS substrate. For R6G as a probe molecule, a low detection limit of 3 x 10-10 M was achieved. Utilizing the high chemical activity of GBs, we also fabricated NG film decorated with Au particles using a one-step quenching strategy, and this hybrid film exhibits an extremely low limit of detection down to 5 x 10-11 M, outperforming all the reported graphene-based systems. |
| 关键词 | grain boundary nanocrystalline graphene graphene-enhanced Raman scattering quenching molecular detection |
| 资助者 | National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; LiaoNing Revitalization Talents Program ; Guangdong Basic and Applied Basic Research Foundation ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Institute of Metal Research, Chinese Academy of Sciences |
| DOI | 10.1021/acs.nanolett.2c03218 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; LiaoNing Revitalization Talents Program ; Guangdong Basic and Applied Basic Research Foundation ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Institute of Metal Research, Chinese Academy of Sciences ; [51325205] ; [51290273] ; [52188101] ; [52122202] ; [ZDBS-LY-JSC027] ; [XDB30000000] ; [XLYC1808013] ; [2020B0301030002] ; [2018223] ; [2019000178] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS记录号 | WOS:000892636600001 |
| 出版者 | AMER CHEMICAL SOC |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/176977 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Ren, Wencai |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Tianya,Xu, Chuan,Ren, Wencai. Grain-Boundary-Induced Ultrasensitive Molecular Detection of Graphene Film[J]. NANO LETTERS,2022:9. |
| APA | Zhou, Tianya,Xu, Chuan,&Ren, Wencai.(2022).Grain-Boundary-Induced Ultrasensitive Molecular Detection of Graphene Film.NANO LETTERS,9. |
| MLA | Zhou, Tianya,et al."Grain-Boundary-Induced Ultrasensitive Molecular Detection of Graphene Film".NANO LETTERS (2022):9. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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