| Grain-Boundary-Induced Ultrasensitive Molecular Detection of Graphene Film | |
| Zhou, Tianya1,2; Xu, Chuan1,2; Ren, Wencai1,2 | |
| Corresponding Author | Ren, Wencai(wcren@imr.ac.cn) |
| 2022-12-01 | |
| Source Publication | NANO LETTERS
 |
| ISSN | 1530-6984 |
| Pages | 9 |
| Abstract | 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. |
| Keyword | grain boundary nanocrystalline graphene graphene-enhanced Raman scattering quenching molecular detection |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000892636600001 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/176980 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Ren, Wencai |
| Affiliation | 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 |
| Recommended Citation 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. |
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