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Wang S, Xie Z, Chen Z, Miao L, Li Y, Zhai Y, Ding T. Photothermophoretic Splitting of Gold Nanoparticles for Plasmonic Nanopores and Nanonets Sensing. J Phys Chem Lett 2024; 15:6568-6574. [PMID: 38885430 DOI: 10.1021/acs.jpclett.4c01073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Optical processing of single plasmonic nanoparticles reinvents the way of high-density information storage, high-performance sensing, and high-definition displays. However, such laser-fabricated nanoplasmonics with well-defined hot spots remain elusive due to the diffraction limit of light. Here we show Au nanoparticle (NP) decorated nanopores can be facilely generated with photothermal splitting of single Au NPs embedded in a silica matrix. The extremely high local temperature induced by plasmonic heating renders gradients of the temperature and surface tension around the Au NP, which drives the nanoscale thermophoretic and Marangoni flow of molten Au/silica. As a result, a nanopore decorated with fragmented Au NPs is formed in the silica film, which presents much stronger surface-enhanced Raman scattering as compared to a single Au NP due to the emergence of hot spots. This strategy can be used to generate plasmonic nanopores of various sizes in the silicon nitride (SiNx) films, which further transforms into nanonets at ambient conditions via light-induced reconstruction of silicon nitride membrane. These nanonets can serve as a robust platform for single particle trapping and analysis.
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Affiliation(s)
- Shuangshuang Wang
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Zhipeng Xie
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Zihao Chen
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Longfei Miao
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Yong Li
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Yueming Zhai
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Tao Ding
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
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Cha L, Li P. Metallic On-Chip Light Concentrators Fabricated by In Situ Plasmonic Etching Technique. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4195. [PMID: 36500820 PMCID: PMC9739918 DOI: 10.3390/nano12234195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/19/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
One-dimensional tapered metallic nanostructures are highly interesting for nanophotonic applications because of their plasmonic waveguiding and field-focusing properties. Here, we developed an in situ etching technique for unique tapered crystallized silver nanowire fabrication. Under the focused laser spot, plasmon-induced charge separation of chemically synthesized nanowires is excited, which triggers the uniaxial etching of silver nanowires along the radial direction with decreasing rate, forming tapered structures several micrometers long and with diameter attenuating from hundreds to tens of nanometers. These tapered metallic nanowires have smooth surfaces showing excellent performance for plasmonic waveguiding, and can be good candidates for nanocircuits and remote-excitation sources.
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Affiliation(s)
- Lihua Cha
- School of Law, Central University of Finance and Economics, Beijing 100081, China
| | - Pan Li
- Institute of Analysis and Testing, Beijing Academy of Science and Technology, Beijing 100089, China
- Department of Physics, Capital Normal University, Beijing 100048, China
- School of Information Technology, Beijing City University, Beijing 100083, China
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Xing T, Qian Q, Ye H, Wang Z, Jin Y, Zhang N, Wang M, Zhou Y, Gao X, Wu L. Gold nanoparticles with helical surface structure transformed from chiral molecules for SERS-active substrates preparation. Biosens Bioelectron 2022; 212:114430. [DOI: 10.1016/j.bios.2022.114430] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 05/23/2022] [Accepted: 05/25/2022] [Indexed: 01/29/2023]
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Wang Y, Hu H, Tang J, Meng S, Xu H, Ding T. Plasmon-Directed On-Wire Growth of Branched Silver Nanowires with Chiroptic Activity. ACS NANO 2021; 15:16404-16410. [PMID: 34558905 DOI: 10.1021/acsnano.1c05796] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Silver nanowires (Ag NWs) present prominent waveguiding properties of subwavelength light due to their nanoconfinement with propagating surface plasmons, which is of great importance for on-chip integration of nanophotonic devices and optical computation. Such propagating plasmons also exert plasmonic forces, which can be utilized to manipulate nanoparticles (NPs) beyond the diffraction limit. However, such controllability is spatially limited to the near fields, whereas a large portion of uncontrolled particles are randomly deposited on the chips, which could be detrimental to the integrated optical devices. Herein we shine continuous wave laser at one end of the Ag NW immersed in AgNO3 solution to launch the propagating surface plasmons. The laser irradiation also induces the photoreduction of Ag+ ions to locally generate tiny Ag NPs, which evolve into large Ag flake branches closer to the other end of the Ag NW. Such a peculiar growth is due to the synergistic effect of plasmonic forces and the thermophoretic/thermo-osmosis forces induced by temperature gradient. These branched Ag NWs with sharp angles are intrinsically chiral, which can be partially controlled by changing the irradiation location, forming plasmonic chiral enantiomers. The circular differential scattering (CDS) response of these branched Ag NWs can be as large as 40%, which can be used for chiral enantiomer sensing with spectral dissymmetric factor up to 4 nm induced by phenylalanine. This plasmon-directed on-wire growth not only offers a facile approach for generating plasmonic chiral nanostructures with remote controllability, but also provides significant insights on the synergistic effect of plasmonic forces and thermal-induced forces, which has great implications for self-assembly and integration of on-chip optics.
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Affiliation(s)
- Yunxia Wang
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072, China
| | - Huatian Hu
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Jibo Tang
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Shuang Meng
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072, China
| | - Hongxing Xu
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072, China
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Tao Ding
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072, China
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Jin X, Zhu Q, Feng L, Li X, Zhu H, Miao H, Zeng Z, Wang Y, Li Y, Wang L, Liu X, Shi G. Light-Trapping SERS Substrate with Regular Bioinspired Arrays for Detecting Trace Dyes. ACS APPLIED MATERIALS & INTERFACES 2021; 13:11535-11542. [PMID: 33625204 DOI: 10.1021/acsami.1c00702] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Recently, few studies have focused on the light-trapping surface-enhanced Raman scattering (SERS) substrate combined with Si micropyramids and Ag (or Au). However, the Si micropyramids possess no ordered period, which not only affects the repeatability of the SERS signal but also affects the theoretical exploration. Here, the ordered micropyramids with strong light-trapping capability were fabricated by utilizing unconventional nanosphere lithography and anisotropy wet etching technique. Then, the Ag nanobowls were assembled on the ordered micropyramids to form the SERS substrate with bioinspired compound-eyes structure by utilizing the liquid-solid interface self-assembly and transfer technique. Especially, the evidence for the contribution of antireflective Si micropyramids to Raman enhancement was first presented. For this bioinspired SERS substrate, the lowest concentration of R6G that can be detected is 10-13 M with the level of a single molecule, and the relative standard deviation (RSD) is 3.68%. Meanwhile, the quantitative analysis and qualitative analysis can be realized. Especially, simultaneous trace detection of four common dyes (R6G, CV, MG, and MB) in food can be realized, suggesting that this SERS substrate will have a good application prospect in the field of optical sensors.
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Affiliation(s)
- Xuan Jin
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Qunyan Zhu
- College of Chemistry, Jilin University, Changchun 130012, China
| | - Lei Feng
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative, Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Xin Li
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Haiyan Zhu
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Hongyan Miao
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Zhoufang Zeng
- Research and Development Center for Genetics Resource, Chinese Academy of Sciences, Changzhou 213000, China
| | - Yandong Wang
- Research and Development Center for Genetics Resource, Chinese Academy of Sciences, Changzhou 213000, China
| | - Ying Li
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Likui Wang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Xuefeng Liu
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Gang Shi
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
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Liu L, Hou S, Zhao X, Liu C, Li Z, Li C, Xu S, Wang G, Yu J, Zhang C, Man B. Role of Graphene in Constructing Multilayer Plasmonic SERS Substrate with Graphene/AgNPs as Chemical Mechanism-Electromagnetic Mechanism Unit. NANOMATERIALS 2020; 10:nano10122371. [PMID: 33260554 PMCID: PMC7760367 DOI: 10.3390/nano10122371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/27/2020] [Accepted: 11/27/2020] [Indexed: 12/29/2022]
Abstract
Graphene–metal substrates have received widespread attention due to their superior surface-enhanced Raman scattering (SERS) performance. The strong coupling between graphene and metal particles can greatly improve the SERS performance and thus broaden the application fields. The way in which to make full use of the synergistic effect of the hybrid is still a key issue to improve SERS activity and stability. Here, we used graphene as a chemical mechanism (CM) layer and Ag nanoparticles (AgNPs) as an electromagnetic mechanism (EM) layer, forming a CM–EM unit and constructing a multi-layer hybrid structure as a SERS substrate. The improved SERS performance of the multilayer nanostructure was investigated experimentally and in theory. We demonstrated that the Raman enhancement effect increased as the number of CM–EM units increased, remaining nearly unchanged when the CM–EM unit was more than four. The limit of detection was down to 10−14 M for rhodamine 6G (R6G) and 10−12 M for crystal violet (CV), which confirmed the ultrahigh sensitivity of the multilayer SERS substrate. Furthermore, we investigated the reproducibility and thermal stability of the proposed multilayer SERS substrate. On the basis of these promising results, the development of new materials and novel methods for high performance sensing and biosensing applications will be promoted.
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Affiliation(s)
- Lu Liu
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Shuting Hou
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Xiaofei Zhao
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Chundong Liu
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Zhen Li
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Chonghui Li
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China;
- Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany
| | - Shicai Xu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, China;
| | - Guilin Wang
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Jing Yu
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
| | - Chao Zhang
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
- Correspondence: (C.Z.); (B.M.)
| | - Baoyuan Man
- Collaborative Innovation Center of Light Manipulations and Applications, School of Physics and Electronics, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China; (L.L.); (S.H.); (X.Z.); (C.L.); (Z.L.); (C.L.); (G.W.); (J.Y.)
- Correspondence: (C.Z.); (B.M.)
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Zhang L, Sun J, Li Z, Yuan Y, Liu A, Huang Y. Coherent Enhancement of Dual-Path-Excited Remote SERS. ACS APPLIED MATERIALS & INTERFACES 2020; 12:32746-32751. [PMID: 32589011 DOI: 10.1021/acsami.0c07939] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Combining both localized surface plasmon polaritons (LSPPs) and propagating surface plasmon polaritons, remote surface-enhanced Raman scattering (SERS) emerges as a novel sensing technology in recent years, which could avoid the overlap of incident light and inelastic scattering light in SERS. Compared to traditional SERS, it has novel applications in sensors, plasmon-driven surface-catalyzed reactions, Raman optical activity, etc. However, the weak Raman intensity of remote SERS impedes its further application. In this work, we demonstrated that the remote SERS signals could be enhanced by more than 100% through the subwavelength interference in dual-path-excited Ag-branched nanowire dimer and nanowire-nanoparticle systems. Our experiment has revealed that remote SERS intensities could be modulated by polarization and phase differences of two incident lights illuminating at two separate nanowire terminals. The simulated electromagnetic field distributions through the finite-difference time-domain (FDTD) method indicate that subwavelength interference occurs in Ag nanowires, which causes the Raman intensities collected at a remote site is greatly influenced by the coherent superposition of propagating surface plasmon polaritons (PSPPs). Our work on this coherent enhancement could not only promote the application of remote SERS but also enlarge the research on light manipulating in the subwavelength.
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Affiliation(s)
- Lingjun Zhang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Jianfeng Sun
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Zhuohao Li
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Yuan Yuan
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
| | - Anping Liu
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
- Chongqing University Industrial Technology Research Institute, Chongqing 400044, China
| | - Yingzhou Huang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
- Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing 400044, China
- Chongqing University Industrial Technology Research Institute, Chongqing 400044, China
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