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Dong J, Yang C, Wu H, Wang Q, Cao Y, Han Q, Gao W, Wang Y, Qi J, Sun M. Two-Dimensional Self-Assembly of Au@Ag Core-Shell Nanocubes with Different Permutations for Ultrasensitive SERS Measurements. ACS OMEGA 2022; 7:3312-3323. [PMID: 35128242 PMCID: PMC8811882 DOI: 10.1021/acsomega.1c05452] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/05/2022] [Indexed: 05/08/2023]
Abstract
Different self-assembly methods not only directly change the arrangement of noble metal particles on the substrate but also indirectly affect the local electromagnetic field distribution and intensity of the substrate under specific optical excitation conditions, which leads to distinguished different enhancement effects of the structure on molecular Raman signals. In this paper, first, the gold species growth method was used to prepare the silver-coated gold nanocubes (Au@Ag NCs) with regular morphology and uniform size, and then the two-phase and three-phase liquid-liquid self-assembly and evaporation-induced self-assembly methods were used to obtain the substrate structure with different NC arrangement patterns. The optimal arrangement of NCs was found by transverse comparison of Raman signal detection of probe molecules with the same concentration. Subsequently, surface-enhanced Raman scattering (SERS) measurements of Rhodamine (Rh6G) and aspartame (APM) were carried out. Furthermore, the finite element method (FEM) was employed to calculate the local electromagnetic fields of the substrates with different Au@Ag NC arrangements, and the calculated results were in agreement with the experimental results. The experimental results show that the SERS-active substrate was largely associated with the different arrangements of Au@Ag NCs, and the island membrane Au@Ag NCs array substrate obtained by evaporation-induced self-assembly can generate a strong local electromagnetic field due to the edge and corner bonding gap between the tightly arranged NCs; this endows the substrate with benign sensitivity and reproducibility and has great potential in molecular detection, biosensing, and food safety monitoring.
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Affiliation(s)
- Jun Dong
- School
of Electronic Engineering, Xi’an
University of Posts and Telecommunications, Xi’an 710121, China
| | - Chengyuan Yang
- School
of Electronic Engineering, Xi’an
University of Posts and Telecommunications, Xi’an 710121, China
| | - Haoran Wu
- School
of Electronic Engineering, Xi’an
University of Posts and Telecommunications, Xi’an 710121, China
| | - Qianying Wang
- School
of Electronic Engineering, Xi’an
University of Posts and Telecommunications, Xi’an 710121, China
| | - Yi Cao
- School
of Electronic Engineering, Xi’an
University of Posts and Telecommunications, Xi’an 710121, China
| | - Qingyan Han
- School
of Electronic Engineering, Xi’an
University of Posts and Telecommunications, Xi’an 710121, China
| | - Wei Gao
- School
of Electronic Engineering, Xi’an
University of Posts and Telecommunications, Xi’an 710121, China
| | - Yongkai Wang
- School
of Electronic Engineering, Xi’an
University of Posts and Telecommunications, Xi’an 710121, China
| | - Jianxia Qi
- School
of Science, Xi’an University of Posts
and Telecommunications, Xi’an 710121, China
| | - Mengtao Sun
- School
of Mathematics and Physics, University of
Science and Technology Beijing, Beijing 100083, China
- Collaborative
Innovation Center of Light Manipulations and Applications, Shandong Normal University, Jinan 250358, China
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2
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Hou Y, Kovács N, Xu H, Sun C, Erni R, Gálvez-Vázquez MDJ, Rieder A, Hu H, Kong Y, Liu M, Wiley BJ, Vesztergom S, Broekmann P. Limitations of identical location SEM as a method of degradation studies on surfactant capped nanoparticle electrocatalysts. J Catal 2021. [DOI: 10.1016/j.jcat.2020.12.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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3
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de Jesus Gálvez-Vázquez M, Moreno-García P, Xu H, Hou Y, Hu H, Montiel IZ, Rudnev AV, Alinejad S, Grozovski V, Wiley BJ, Arenz M, Broekmann P. Environment Matters: CO2RR Electrocatalyst Performance Testing in a Gas-Fed Zero-Gap Electrolyzer. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03609] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Pavel Moreno-García
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland
| | - Heng Xu
- Department of Chemistry, Duke University, Durham, North Carolina 27708-0354, United States
| | - Yuhui Hou
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland
| | - Huifang Hu
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland
| | | | - Alexander V. Rudnev
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences, Leninskii pr. 31, Moscow 119071, Russia
| | - Shima Alinejad
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland
| | - Vitali Grozovski
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland
| | - Benjamin J. Wiley
- Department of Chemistry, Duke University, Durham, North Carolina 27708-0354, United States
| | - Matthias Arenz
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland
| | - Peter Broekmann
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland
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Asbahi M, Mahfoud Z, Dolmanan SB, Wu W, Dong Z, Wang F, Saifullah MSM, Tripathy S, Chong KSL, Bosman M. Ultrasmall Designed Plasmon Resonators by Fused Colloidal Nanopatterning. ACS APPLIED MATERIALS & INTERFACES 2019; 11:45207-45213. [PMID: 31694369 DOI: 10.1021/acsami.9b15780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This work presents a procedure for large-area patterning of designed plasmon resonators that are much smaller than possible with conventional lithography techniques. Fused Colloidal Nanopatterning combines directed self-assembly and controlled fusing of spherical colloidal nanoparticles. The two-step approach first patterns a surface covered with hydrogen silsesquioxane, an electron beam resist, forming traps into which the colloidal gold nanoparticles self-assemble. Second, the patterned nanoparticles are controllably fused to form plasmon resonators of any 2D designed shape. The heights and widths of the plasmon resonators are determined by the diameter of the nanoparticle building blocks, which can be well below 10 nm. By performing the fusing step with UV ozone and heat exposure, we demonstrate that the process is easily scalable to cover large areas on silicon wafers with designed gold nanostructures. The procedure neither requires adhesion layers nor a lift-off process, making it ideally suited for plasmonics, in comparison with regular electron beam lithography. We use monochromated electron energy loss spectroscopy (EELS) in scanning transmission electron microscopy and boundary element method simulations to demonstrate that the designed plasmon resonators are directly tunable via the pattern design. We foresee future expansion of this approach for applications such as plasmon-enhanced photocatalysis and for large-scale patterning where chemical, optical, or confinement properties require sub-10 nm metal lines.
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Affiliation(s)
- Mohamed Asbahi
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology, and Research) , 2 Fusionopolis Way , 138634 , Singapore
| | - Zackaria Mahfoud
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology, and Research) , 2 Fusionopolis Way , 138634 , Singapore
| | - Surani B Dolmanan
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology, and Research) , 2 Fusionopolis Way , 138634 , Singapore
| | - Wenya Wu
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology, and Research) , 2 Fusionopolis Way , 138634 , Singapore
| | - Zhaogang Dong
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology, and Research) , 2 Fusionopolis Way , 138634 , Singapore
| | - FuKe Wang
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology, and Research) , 2 Fusionopolis Way , 138634 , Singapore
| | - Mohammad S M Saifullah
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology, and Research) , 2 Fusionopolis Way , 138634 , Singapore
| | - Sudhiranjan Tripathy
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology, and Research) , 2 Fusionopolis Way , 138634 , Singapore
| | - Karen S L Chong
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology, and Research) , 2 Fusionopolis Way , 138634 , Singapore
| | - Michel Bosman
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology, and Research) , 2 Fusionopolis Way , 138634 , Singapore
- Department of Materials Science and Engineering , National University of Singapore , 9 Engineering Drive 1 , 117575 Singapore
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Luo B, Fang Y, Li J, Huang Z, Hu B, Zhou J. Improved Stability of Metal Nanowires via Electron Beam Irradiation Induced Surface Passivation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:12195-12201. [PMID: 30880382 DOI: 10.1021/acsami.9b00875] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Suppressing the corrosion of nanoscaled metal materials is a critical issue for various devices. Herein, we demonstrate the electron beam irradiation can be a simple and efficient method to realize silver/copper nanowires protection by transforming the original organic capping agents into dense carbonaceous shells. Single nanowire tests prove the significant stability improvement from 4 days to 20 days for silver nanowire and from 20 h to at least 1 week for copper nanowire. The comprehensive advantages such as solution/pollution-free and continuous process with high precision offer this method substantial potential applications in bottom-up assembled electronic and optoelectronic devices.
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Affiliation(s)
- Beibei Luo
- Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan 430074 , China
| | - Yunsheng Fang
- Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan 430074 , China
| | - Jia Li
- Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan 430074 , China
| | - Zhen Huang
- Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan 430074 , China
| | - Bin Hu
- Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan 430074 , China
- Shenzhen Huazhong University of Science and Technology Research Institute , Shenzhen 518057 , China
| | - Jun Zhou
- Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan 430074 , China
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6
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Chen G, Guo C, Cheng Y, Lu H, Cui J, Hu W, Jiang R, Jiang N. High Density Static Charges Governed Surface Activation for Long-Range Motion and Subsequent Growth of Au Nanocrystals. NANOMATERIALS 2019; 9:nano9030328. [PMID: 30823673 PMCID: PMC6473974 DOI: 10.3390/nano9030328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/15/2019] [Accepted: 02/17/2019] [Indexed: 12/01/2022]
Abstract
How a heavily charged metal nanocrystal, and further a dual-nanocrystals system behavior with continuous electron charging? This refers to the electric dynamics in charged particles as well as the crystal growth for real metal particles, but it is still opening in experimental observations and interpretations. To this end, we performed an in-situ electron-beam irradiation study using transmission electron microscopy (TEM) on the Au nanocrystals that freely stand on the nitride boron nanotube (BNNT). Au nanocrystalline particles with sizes of 2–4 nm were prepared by a well-controlled sputtering method to stand on the BNNT surface without chemical bonding interactions. Au nanoparticles presented the surface atomic disorder, diffusion phenomena with continuous electron-beam irradiation, and further, the long-range motion that contains mainly the three stages: charging, activation, and adjacence, which are followed by final crystal growth. Firstly, the growth process undergoes the lattice diffusion and subsequently the surface-dominated diffusion mechanism. These abnormal phenomena and observations, which are fundamentally distinct from classic cases and previous reports, are mainly due to the overcharging of Au nanoparticle that produces a surface activation state in terms of high-energy plasma. This work therefore brings about new observations for both a single and dual-nanocrystals system, as well as new insights in understanding the resulting dynamics behaviors.
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Affiliation(s)
- Guoxin Chen
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Rd., Shijingshan District, Beijing 100049, China.
| | - Changjin Guo
- School of Materials Science and Engineering, Yunnan University, Kunming 650091, China.
| | - Yao Cheng
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
| | - Huanming Lu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
| | - Junfeng Cui
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
| | - Wanbiao Hu
- School of Materials Science and Engineering, Yunnan University, Kunming 650091, China.
| | - Rongrong Jiang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
| | - Nan Jiang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19A Yuquan Rd., Shijingshan District, Beijing 100049, China.
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7
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Blazhynska MM, Kyrychenko A, Kalugin ON. Molecular dynamics simulation of the size-dependent morphological stability of cubic shape silver nanoparticles. MOLECULAR SIMULATION 2018. [DOI: 10.1080/08927022.2018.1469751] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
| | - Alexander Kyrychenko
- School of Chemistry, V. N. Karazin Kharkiv National University, Kharkiv, Ukraine
| | - Oleg N. Kalugin
- School of Chemistry, V. N. Karazin Kharkiv National University, Kharkiv, Ukraine
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