Ultrafast charge transfer in mixed-dimensional WO3-x nanowire/WSe2 heterostructures for attomolar-level molecular sensing
文献类型：期刊论文
| 作者 | Lv, Qian8; Tan, Junyang1,11; Wang, Zhijie1,11; Gu, Peng2,3,10; Liu, Haiyun10; Yu, Lingxiao8; Wei, Yinping1,11; Gan, Lin1,11; Liu, Bilu1,11; Li, Jia1,4,11 |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2023-05-11 |
| 卷号 | 14期号:1页码:10 |
| DOI | 10.1038/s41467-023-38198-x |
| 通讯作者 | Liu, Bilu(bilu.liu@sz.tsinghua.edu.cn) ; Li, Jia(li.jia@sz.tsinghua.edu.cn) ; Xiong, Qihua(qihua_xiong@tsinghua.edu.cn) ; Lv, Ruitao(lvruitao@tsinghua.edu.cn) |
| 英文摘要 | Developing efficient noble-metal-free surface-enhanced Raman scattering (SERS) substrates and unveiling the underlying mechanism is crucial for ultrasensitive molecular sensing. Herein, we report a facile synthesis of mixed-dimensional heterostructures via oxygen plasma treatments of two-dimensional (2D) materials. As a proof-of-concept, 1D/2D WO3-x/WSe2 heterostructures with good controllability and reproducibility are synthesized, in which 1D WO3-x nanowire patterns are laterally arranged along the three-fold symmetric directions of 2D WSe2. The WO3-x/WSe2 heterostructures exhibited high molecular sensitivity, with a limit of detection of 5 x 10(-18) M and an enhancement factor of 5.0 x 10(11) for methylene blue molecules, even in mixed solutions. We associate the ultrasensitive performance to the efficient charge transfer induced by the unique structures of 1D WO3-x nanowires and the effective interlayer coupling of the heterostructures. We observed a charge transfer timescale of around 1.0 picosecond via ultrafast transient spectroscopy. Our work provides an alternative strategy for the synthesis of 1D nanostructures from 2D materials and offers insights on the role of ultrafast charge transfer mechanisms in plasmon-free SERS-based molecular sensing. |
| 资助项目 | National Natural Science Foundation of China[51972191] ; National Natural Science Foundation of China[92056204] ; National Natural Science Foundation of China[51991343] ; National Natural Science Foundation of China[2021YFA1200800] ; National Natural Science Foundation of China[2022YFA1204700] ; National Key Research and Development Program of China[11874036] ; National Key Research and Development Program of China[51920105002] ; Shenzhen Basic Research Project[JCYJ20200109142816479] ; Shenzhen Basic Research Project[WDZC20200819115243002] ; Shenzhen Basic Research Project[JCYJ20200109144616617] ; Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program[2017BT01N111] ; Analysis Platform of Center for Nano and Micro Mechanics, Tsinghua University |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000992465700023 |
| 出版者 | NATURE PORTFOLIO |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Shenzhen Basic Research Project ; Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program ; Analysis Platform of Center for Nano and Micro Mechanics, Tsinghua University |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178186]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Bilu; Li, Jia; Xiong, Qihua; Lv, Ruitao |
| 作者单位 | 1.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen Geim Graphene Ctr, Shenzhen 518055, Peoples R China 2.Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China 3.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 4.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Guangdong Prov Key Lab Thermal Management Engn & M, Shenzhen 518055, Peoples R China 5.Tsinghua Univ, Sch Mat Sci & Engn, Key Lab Adv Mat MOE, Beijing 100084, Peoples R China 6.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 7.Frontier Sci Ctr Quantum Informat, Beijing 100084, Peoples R China 8.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China 9.Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China 10.Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lv, Qian,Tan, Junyang,Wang, Zhijie,et al. Ultrafast charge transfer in mixed-dimensional WO3-x nanowire/WSe2 heterostructures for attomolar-level molecular sensing[J]. NATURE COMMUNICATIONS,2023,14(1):10. |
| APA | Lv, Qian.,Tan, Junyang.,Wang, Zhijie.,Gu, Peng.,Liu, Haiyun.,...&Lv, Ruitao.(2023).Ultrafast charge transfer in mixed-dimensional WO3-x nanowire/WSe2 heterostructures for attomolar-level molecular sensing.NATURE COMMUNICATIONS,14(1),10. |
| MLA | Lv, Qian,et al."Ultrafast charge transfer in mixed-dimensional WO3-x nanowire/WSe2 heterostructures for attomolar-level molecular sensing".NATURE COMMUNICATIONS 14.1(2023):10. |
入库方式： OAI收割
来源：金属研究所
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