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Near-Neighbor Electron Orbital Coupling Effect of Single-Atomic-Layer Au Cluster Intercalated Bilayer 2H-TaS2 for Surface Enhanced Raman Scattering Sensing

文献类型：期刊论文

作者Weng, Shirui5; Chu, Wenjun4; Zhu, Huaze3; Li, Junxiang5; Dong, Ronglu5; Niu, Rui2; Yang, Jun3; Zhang, Changjin2; Li, Zhenyu4; Yang, Liangbao1,5
刊名JOURNAL OF PHYSICAL CHEMISTRY LETTERS
出版日期2023-09-18
卷号14
ISSN号1948-7185
DOI10.1021/acs.jpclett.3c02225
通讯作者Yang, Liangbao(lbyang@iim.ac.cn)
英文摘要It is difficult to perfectly analyze the enhancement mechanism of two-dimensional (2D) materials and their combination with precious metals as surface enhanced Raman scattering (SERS) substrates using chemical enhancement mechanisms. Here, we propose a new mentality based on the coupling effect of neighboring electron orbitals to elucidate the electromagnetic field enhancement mechanism of single-atom-layer Au clusters embedded in double-layer 2H-TaS2 for SRES sensing. The insertion of Au atoms into the 2H-TaS2 interlayer was verified by XRD, AFM, and HRTEM, and a SERS signal enhancement of 2 orders of magnitude was obtained compared to the pure 2H-TaS2. XPS and micro-UV/vis-NIR spectra indicate that the outer electrons of neighboring Au and 2H-TaS2 overlap and migrate from Au to 2H-TaS2. First-principles calculations suggest strong electronic coupling between Au and 2H-TaS2. This study offers insights into SERS enhancement in nonprecious metal compounds and guides the development of new SERS substrates.
WOS关键词SPECTROSCOPY ; GRAPHENE ; SENSITIVITY ; PLATFORM ; FILMS ; GOLD
资助项目National Natural Science Foundation of China[52232007] ; Anhui Provincial Natural Science Foundation Project[2208085MB31] ; Postdoctoral Fund of Anhui Province[2021B524] ; President's Fund of Hefei Institute of Material Science, Chinese Academy of Sciences[YZJJ2022QN46]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:001068582300001
资助机构National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation Project ; Postdoctoral Fund of Anhui Province ; President's Fund of Hefei Institute of Material Science, Chinese Academy of Sciences
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/132646]  
专题中国科学院合肥物质科学研究院
通讯作者Yang, Liangbao
作者单位1.Chinese Acad Sci, Hefei Canc Hosp, Dept Pharm, Hefei 230031, Anhui, Peoples R China
2.Chinese Acad Sci, High Magnet Field Lab Anhui Prov, Hefei 230031, Peoples R China
3.Westlake Univ, Dept Mat Sci & Engn, Hangzhou 310024, Zhejiang, Peoples R China
4.Univ Sci & Technol China, Key Lab Precis & Intelligent Chem, Hefei 230026, Anhui, Peoples R China
5.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Hlth & Med Technol, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Weng, Shirui,Chu, Wenjun,Zhu, Huaze,et al. Near-Neighbor Electron Orbital Coupling Effect of Single-Atomic-Layer Au Cluster Intercalated Bilayer 2H-TaS2 for Surface Enhanced Raman Scattering Sensing[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2023,14.
APA Weng, Shirui.,Chu, Wenjun.,Zhu, Huaze.,Li, Junxiang.,Dong, Ronglu.,...&Yang, Liangbao.(2023).Near-Neighbor Electron Orbital Coupling Effect of Single-Atomic-Layer Au Cluster Intercalated Bilayer 2H-TaS2 for Surface Enhanced Raman Scattering Sensing.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,14.
MLA Weng, Shirui,et al."Near-Neighbor Electron Orbital Coupling Effect of Single-Atomic-Layer Au Cluster Intercalated Bilayer 2H-TaS2 for Surface Enhanced Raman Scattering Sensing".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 14(2023).

入库方式： OAI收割

来源：合肥物质科学研究院

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