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Kim CH, Ryu C, Ro YH, O SI, Yu CJ. First-principles study of mercaptoundecanoic acid molecule adsorption and gas molecule penetration onto silver surface: an insight for corrosion protection. RSC Adv 2023; 13:31224-31233. [PMID: 37886019 PMCID: PMC10598515 DOI: 10.1039/d3ra06040c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/16/2023] [Indexed: 10/28/2023] Open
Abstract
Recently, 11-mercaptoundecanoic acid (MUA) molecule has attracted attention as a promising passivation agent of Ag nanowire (NW) network electrode for corrosion inhibition, but the underneath mechanism has not been elaborated. In this work, we investigate adsorption of MUA molecule on Ag(1 0 0) and Ag(1 1 1) surface, adsorption of air gas molecules of H2O, H2S and O2 on MUA molecular end surface, and their penetrations into the Ag surface using the first-principles calculations. Our calculations reveal that the MUA molecule is strongly bound to the Ag surface with the binding energies ranging from -0.47 to -2.06 eV and the Ag-S bond lengths of 2.68-2.97 Å by Lewis acid-base reaction. Furthermore, we find attractive interactions between the gas molecules and the MUA@Ag complexes upon their adsorptions and calculate activation barriers for their migrations from the outermost end of the complexes to the top of Ag surface. It is found that the penetrations of H2O and H2S are more difficult than the O2 penetration due to their higher activation barriers, while the O2 penetration is still difficult, confirming the corrosion protection of Ag NW network by adsorbing the uniform monolayer of MUA. With these findings, this work can contribute to finding a better passivation agent in the strategy of corrosion protection of Ag NW network electrode.
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Affiliation(s)
- Chung-Hyok Kim
- Institute of Electronic Materials, High-Tech and Development Centre, Kim Il Sung University PO Box 76 Pyongyang Democratic People's Republic of Korea
| | - Chol Ryu
- Computational Materials Design (CMD), Faculty of Materials Science, Kim Il Sung University PO Box 76 Pyongyang Democratic People's Republic of Korea
| | - Yong-Hak Ro
- Institute of Electronic Materials, High-Tech and Development Centre, Kim Il Sung University PO Box 76 Pyongyang Democratic People's Republic of Korea
| | - Song-Il O
- Physics Department, O Jung Hub Chongjin University of Education Chongjin Hamgyong North Province Democratic People's Republic of Korea
| | - Chol-Jun Yu
- Computational Materials Design (CMD), Faculty of Materials Science, Kim Il Sung University PO Box 76 Pyongyang Democratic People's Republic of Korea
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2
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Fatkullin M, Rodriguez RD, Petrov I, Villa NE, Lipovka A, Gridina M, Murastov G, Chernova A, Plotnikov E, Averkiev A, Cheshev D, Semyonov O, Gubarev F, Brazovskiy K, Sheng W, Amin I, Liu J, Jia X, Sheremet E. Molecular Plasmonic Silver Forests for the Photocatalytic-Driven Sensing Platforms. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:923. [PMID: 36903801 PMCID: PMC10005408 DOI: 10.3390/nano13050923] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/23/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
Structural electronics, as well as flexible and wearable devices are applications that are possible by merging polymers with metal nanoparticles. However, using conventional technologies, it is challenging to fabricate plasmonic structures that remain flexible. We developed three-dimensional (3D) plasmonic nanostructures/polymer sensors via single-step laser processing and further functionalization with 4-nitrobenzenethiol (4-NBT) as a molecular probe. These sensors allow ultrasensitive detection with surface-enhanced Raman spectroscopy (SERS). We tracked the 4-NBT plasmonic enhancement and changes in its vibrational spectrum under the chemical environment perturbations. As a model system, we investigated the sensor's performance when exposed to prostate cancer cells' media over 7 days showing the possibility of identifying the cell death reflected in the environment through the effects on the 4-NBT probe. Thus, the fabricated sensor could have an impact on the monitoring of the cancer treatment process. Moreover, the laser-driven nanoparticles/polymer intermixing resulted in a free-form electrically conductive composite that withstands over 1000 bending cycles without losing electrical properties. Our results bridge the gap between plasmonic sensing with SERS and flexible electronics in a scalable, energy-efficient, inexpensive, and environmentally friendly way.
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Affiliation(s)
- Maxim Fatkullin
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Raul D. Rodriguez
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Ilia Petrov
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Nelson E. Villa
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Anna Lipovka
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Maria Gridina
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Gennadiy Murastov
- Montanuniversität Leoben, Franz Josef-Straße 18, 8700 Leoben, Austria
| | - Anna Chernova
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Evgenii Plotnikov
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Andrey Averkiev
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Dmitry Cheshev
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Oleg Semyonov
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Fedor Gubarev
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Konstantin Brazovskiy
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
| | - Wenbo Sheng
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Ihsan Amin
- Van’t Hoff Institute of Molecular Science, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Jianxi Liu
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Xin Jia
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China
| | - Evgeniya Sheremet
- Research School of Chemistry & Applied Biomedical Sciences, Tomsk Polytechnic University, 30 Lenin Ave, 634050 Tomsk, Russia
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3
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Gutowski Ł, Liszewska M, Bartosewicz B, Budner B, Weyher JL, Jankiewicz BJ. Investigation of organic monoradicals reactivity using surface-enhanced Raman spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 278:121312. [PMID: 35537259 DOI: 10.1016/j.saa.2022.121312] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/28/2022] [Accepted: 04/23/2022] [Indexed: 06/14/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) and self-assembled monolayer (SAM) approaches were used to investigate the reactions of organic monoradicals with methanol. An attempt was made to generate monoradicals from thiophenols and phenylmethanethiols substituted with bromine, iodine, and nitro groups by irradiation with UV light. Monolayers of radical precursors were deposited on SERS substrates, which were then immersed in methanol and irradiated for 1 and/or 3, 6, 12 and 24 h in a UV photochemical reactor. Pre- and postreaction SERS spectra were obtained by using a confocal Raman microscope and compared with the spectra of expected products of the radical reaction with methanol. Our studies have shown that the efficiency of monoradical generation is highly dependent on the chemical structure of the precursor. In addition, it is shown that both the SERS substrate and experimental conditions used strongly influence the obtained results.
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Affiliation(s)
- Łukasz Gutowski
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland.
| | - Malwina Liszewska
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland.
| | - Bartosz Bartosewicz
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland.
| | - Bogusław Budner
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland.
| | - Jan L Weyher
- Institute of High-Pressure Physics, Polish Academy of Sciences, Sokołowska 29/37, 01-142 Warsaw, Poland.
| | - Bartłomiej J Jankiewicz
- Institute of Optoelectronics, Military University of Technology, gen. Sylwestra Kaliskiego 2, 00-908 Warsaw, Poland.
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4
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Calovi M, Meschini S, Condello M, Rossi S. Innovative Codeposition of a Ag-Al 2O 3 Layer: An Attractive Combination of High Durability and Lack of Cytotoxicity for Public Space Applications. ACS OMEGA 2022; 7:25650-25662. [PMID: 35910186 PMCID: PMC9330093 DOI: 10.1021/acsomega.2c02872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 06/30/2022] [Indexed: 06/15/2023]
Abstract
Today, the use of silver in surfaces for public environments is very frequent, as it ensures high antimicrobial activities, avoiding the continuous disinfection of the surfaces themselves. Similarly, thanks to its interesting combination of technological properties, anodized aluminum is widely employed in the production of components for applications in public spaces. Therefore, this work describes a simple method of the codeposition of silver and anodized aluminum to combine the remarkable properties of Al2O3 layers with the antibacterial performances of silver. The effect of silver in modifying the durability features of the anodized aluminum layer was evaluated by means of various accelerated degradation techniques, such as the exposure in a climatic chamber to UV-B radiation or an aggressive atmosphere simulated by the Kesternich test. These analyses showed the good compatibility between Ag and the alumina matrix, whose durability performances were not particularly influenced by silver. Furthermore, the composite layers did not express relevant cytotoxicity activity, as evidenced by Trypan blue flow cytometry analysis and microscopy observations, ensuring the possible use of this material in applications in close contact with humans. This same conclusion was reached by observing an almost negligible ionic release of Ag by the composite layers, even following severe degradation of the alumina matrix due to exposure to a particular acid solution. In conclusion, this work presents an innovative material that can be used in public spaces, thanks to its interesting combination of high durability and low cytotoxicity.
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Affiliation(s)
- Massimo Calovi
- Department
of Industrial Engineering, University of
Trento, Trento 38123, Italy
| | - Stefania Meschini
- National
Center for Drug Research and Evaluation, National Institute of Health, Rome 00161, Italy
| | - Maria Condello
- National
Center for Drug Research and Evaluation, National Institute of Health, Rome 00161, Italy
| | - Stefano Rossi
- Department
of Industrial Engineering, University of
Trento, Trento 38123, Italy
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5
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Wang HC, Achouri K, Martin OJF. Robustness Analysis of Metasurfaces: Perfect Structures Are Not Always the Best. ACS PHOTONICS 2022; 9:2438-2447. [PMID: 35880076 PMCID: PMC9307052 DOI: 10.1021/acsphotonics.2c00563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Optical metasurfaces rely on subwavelength scale nanostructures, which puts significant constraints on nanofabrication accuracies. These constraints are becoming increasingly important, as metasurfaces are maturing toward real applications that require the fabrication of very large area samples. Here, we focus on beam steering gradient metasurfaces and show that perfect nanofabrication does not necessarily equate with best performances: metasurfaces with missing elements can actually be more efficient than intact metasurfaces. Both plasmonic metasurfaces in reflection and dielectric metasurfaces in transmission are investigated. These findings are substantiated by experiments on purposely misfabricated metasurfaces and full-wave calculations. A very efficient quasi-analytical model is also introduced for the design and simulations of metasurfaces; it agrees very well with full-wave calculations. Our findings indicate that the substrate properties play a key role in the robustness of a metasurface and the smoothness of the approximated phase gradient controls the device efficiency.
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Affiliation(s)
- Hsiang-Chu Wang
- Nanophotonics and Metrology
Laboratory, Swiss Federal Institute of Technology
Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Karim Achouri
- Nanophotonics and Metrology
Laboratory, Swiss Federal Institute of Technology
Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Olivier J. F. Martin
- Nanophotonics and Metrology
Laboratory, Swiss Federal Institute of Technology
Lausanne (EPFL), 1015 Lausanne, Switzerland
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6
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Ray D, Wang HC, Kim J, Santschi C, Martin OJF. A Low-Temperature Annealing Method for Alloy Nanostructures and Metasurfaces: Unlocking a Novel Degree of Freedom. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2108225. [PMID: 35167722 DOI: 10.1002/adma.202108225] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 02/02/2022] [Indexed: 06/14/2023]
Abstract
The material and exact shape of a nanostructure determine its optical response, which is especially strong for plasmonic metals. Unfortunately, only a few plasmonic metals are available, which limits the spectral range where these strong optical effects can be utilized. Alloying different plasmonic metals can overcome this limitation, at the expense of using a high-temperature alloying process, which adversely destroys the nanostructure shape. Here, a low-temperature alloying process is developed where the sample is heated at only 300 °C for 8 h followed by 30 min at 450 °C and Au-Ag nanostructures with a broad diversity of shapes, aspect ratios, and stoichiometries are fabricated. Energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy analyses confirm the homogeneous alloying through the entire sample. Varying the alloy stoichiometry tunes the optical response and controls spectral features, such as Fano resonances. Binary metasurfaces that combine nanostructures with different stoichiometries are fabricated using multiple-step electron-beam lithography, and their optical function as a hologram or a Fresnel zone plate is demonstrated at the visible wavelength of λ = 532 nm. This low-temperature annealing technique provides a versatile and cost-effective way of fabricating complex Au-Ag nanostructures with arbitrary stoichiometry.
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Affiliation(s)
- Debdatta Ray
- Nanophotonics and Metrology Laboratory, Swiss Federal Institute of Technology, Lausanne (EPFL), Lausanne, 1015, Switzerland
| | - Hsiang-Chu Wang
- Nanophotonics and Metrology Laboratory, Swiss Federal Institute of Technology, Lausanne (EPFL), Lausanne, 1015, Switzerland
| | - Jeonghyeon Kim
- Nanophotonics and Metrology Laboratory, Swiss Federal Institute of Technology, Lausanne (EPFL), Lausanne, 1015, Switzerland
| | - Christian Santschi
- Nanophotonics and Metrology Laboratory, Swiss Federal Institute of Technology, Lausanne (EPFL), Lausanne, 1015, Switzerland
| | - Olivier J F Martin
- Nanophotonics and Metrology Laboratory, Swiss Federal Institute of Technology, Lausanne (EPFL), Lausanne, 1015, Switzerland
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7
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Abstract
AbstractThe corrosion of silver nanoparticles (AgNPs) on exposure to ambient air was studied using imaging and analysis in the scanning transmission electron microscope (STEM). Secondary particles are formed on exposure to ambient air, and these are more numerous and more widely distributed as the relative humidity increases. Energy-dispersive X-ray analysis (EDS) confirms that the particles contain Ag and S. Electron energy loss spectra (EELS) in the valence part of the spectrum (< ~ 50 eV) identify the corrosion product as Ag2S on comparison with spectra from reference compounds. The EELS measurements also allow for a direct visualisation of the shift in the energy of the surface plasmon peak that occurs when the corrosion product is in contact with the particle. The experiments confirm that advanced electron microscopy methods have an important role in investigating corrosion of nanoparticulate systems.
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8
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Zhang W, Bai J, Zhou C, Yu H, Wang L. Preparation and properties of water-based acrylic emulsion-assisted flexible building tiles. RSC Adv 2022; 12:5340-5348. [PMID: 35425560 PMCID: PMC8981332 DOI: 10.1039/d2ra00045h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 01/31/2022] [Indexed: 11/21/2022] Open
Abstract
The heavy and rigid appearance of conventional burnt building tiles is not suitable for a global sustainable development strategy. Flexible facing tiles with lightweight and environmental materials are highly desirable for the construction industry today. In this work, water-based polymer emulsion-assisted flexible building tiles were prepared. Based on the method of achieving post crosslinking and improving adhesion with inorganic matrix-based materials, WPAs modified with GMA and KH570 display good chemical resistance and low solvent absorption (0.132 in water and 0.289 in ethanol respectively). The optimum mechanical performance of flexible building materials prepared with WPAs can strain 1.406% and stress 1.8658 MPa. The TGA, XRD, SEM and AFM results further indicate the excellent thermal stability and compatibility of flexible building tiles. Hence, flexible building tiles prepared with WPAs can be promising building materials for construction.
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Affiliation(s)
- Wu Zhang
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University Yichang 443002 China .,Hubei Three Gorges Laboratory Yichang Hubei 443007 China
| | - Jingchen Bai
- Hubei Yaomei Soft Porcelain Co., Ltd Yichang 443500 China
| | - Changlin Zhou
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University Yichang 443002 China .,Hubei Three Gorges Laboratory Yichang Hubei 443007 China
| | - Hong Yu
- Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Wuhan Institute of Technology Wuhan 430205 China .,Hubei Three Gorges Laboratory Yichang Hubei 443007 China
| | - Lei Wang
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University Yichang 443002 China .,Hubei Three Gorges Laboratory Yichang Hubei 443007 China
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9
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Loyez M, DeRosa MC, Caucheteur C, Wattiez R. Overview and emerging trends in optical fiber aptasensing. Biosens Bioelectron 2022; 196:113694. [PMID: 34637994 DOI: 10.1016/j.bios.2021.113694] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 12/16/2022]
Abstract
Optical fiber biosensors have attracted growing interest over the last decade and quickly became a key enabling technology, especially for the detection of biomarkers at extremely low concentrations and in small volumes. Among the many and recent fiber-optic sensing amenities, aptamers-based sensors have shown unequalled performances in terms of ease of production, specificity, and sensitivity. The immobilization of small and highly stable bioreceptors such as DNA has bolstered their use for the most varied applications e.g., medical diagnosis, food safety and environmental monitoring. This review highlights the recent advances in aptamer-based optical fiber biosensors. An in-depth analysis of the literature summarizes different fiber-optic structures and biochemical strategies for molecular detection and immobilization of receptors over diverse surfaces. In this review, we analyze the features offered by those sensors and discuss about the next challenges to be addressed. This overview investigates both biochemical and optical parameters, drawing the guiding lines for forthcoming innovations and prospects in this ever-growing field of research.
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Affiliation(s)
- Médéric Loyez
- Proteomics and Microbiology Department, University of Mons, Avenue du Champ de Mars 6, 7000, Mons, Belgium; Electromagnetism and Telecommunication Department, University of Mons, Bld. Dolez 31, 7000, Mons, Belgium.
| | - Maria C DeRosa
- Department of Chemistry, 203 Steacie Building, Carleton University, 1125, Colonel By Drive, Ottawa, ON K1S 5B6, Canada
| | - Christophe Caucheteur
- Electromagnetism and Telecommunication Department, University of Mons, Bld. Dolez 31, 7000, Mons, Belgium
| | - Ruddy Wattiez
- Proteomics and Microbiology Department, University of Mons, Avenue du Champ de Mars 6, 7000, Mons, Belgium
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10
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Abasahl B, Santschi C, Raziman TV, Martin OJF. Fabrication of plasmonic structures with well-controlled nanometric features: a comparison between lift-off and ion beam etching. NANOTECHNOLOGY 2021; 32:475202. [PMID: 34348240 DOI: 10.1088/1361-6528/ac1a93] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
After providing a detailed overview of nanofabrication techniques for plasmonics, we discuss in detail two different approaches for the fabrication of metallic nanostructures based on e-beam lithography. The first approach relies on a negative e-beam resist, followed by ion beam milling, while the second uses a positive e-beam resist and lift-off. Overall, ion beam etching provides smaller and more regular features including tiny gaps between sub-parts, that can be controlled down to about 10 nm. In the lift-off process, the metal atoms are deposited within the resist mask and can diffuse on the substrate, giving rise to the formation of nanoclusters that render the nanostructure outline slightly fuzzy. Scattering cross sections computed for both approaches highlight some spectral differences, which are especially visible for structures that support complex resonances, such as Fano resonances. Both techniques can produce useful nanostructures and the results reported therein should guide the researcher to choose the best suited approach for a given application, depending on the available technology.
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Affiliation(s)
- B Abasahl
- Nanophotonics and Metrology Laboratory, Swiss Federal Insititute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - C Santschi
- Nanophotonics and Metrology Laboratory, Swiss Federal Insititute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - T V Raziman
- Nanophotonics and Metrology Laboratory, Swiss Federal Insititute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - O J F Martin
- Nanophotonics and Metrology Laboratory, Swiss Federal Insititute of Technology Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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11
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Wang L, Womiloju AA, Höppener C, Schubert US, Hoeppener S. On the stability of microwave-fabricated SERS substrates - chemical and morphological considerations. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2021; 12:541-551. [PMID: 34194890 PMCID: PMC8204127 DOI: 10.3762/bjnano.12.44] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 05/11/2021] [Indexed: 06/13/2023]
Abstract
The stability of surface-enhanced Raman spectroscopy (SERS) substrates in different organic solvents and different buffer solutions was investigated. SERS substrates were fabricated by a microwave-assisted synthesis approach and the morphological as well as chemical changes of the SERS substrates were studied. It was demonstrated that the SERS substrates treated with methanol, ethanol, or N,N-dimethylformamide (DMF) were comparable and showed overall good stability and did not show severe morphological changes or a strong decrease in their Raman activity. Toluene treatment resulted in a strong decrease in the Raman activity whereas dimethyl sulfoxide (DMSO) treatment completely preserved or even slightly improved the Raman enhancement capabilities. SERS substrates immersed into phosphate-buffered saline (PBS) solutions were observed to be rather instable in low and neutral pH buffer solutions. Other buffer systems showed less severe influences on the SERS activity of the substrates and a carbonate buffer at pH 10 was found to even improve SERS performance. This study represents a guideline on the stability of microwave-fabricated SERS substrates or other SERS substrates consisting of non-stabilized silver nanoparticles for the application of different organic solvents and buffer solutions.
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Affiliation(s)
- Limin Wang
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Aisha Adebola Womiloju
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Christiane Höppener
- Leibniz-Institut of Photonic Technology e.V. (IPHT), Albert-Einstein-Straße 9, 07745 Jena, Germany
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Lessingstr. 10, 07743 Jena, Germany
| | - Ulrich Sigmar Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Stephanie Hoeppener
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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12
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Hwang CSH, Ahn MS, Jeong KH. Extraordinary sensitivity enhancement of Ag-Au alloy nanohole arrays for label-free detection of Escherichia Coli. BIOMEDICAL OPTICS EXPRESS 2021; 12:2734-2743. [PMID: 34123500 PMCID: PMC8176792 DOI: 10.1364/boe.420828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/05/2021] [Accepted: 04/05/2021] [Indexed: 06/12/2023]
Abstract
Alloy nanostructures unveil extraordinary plasmonic phenomena that supersede the mono-metallic counterparts. Here we report silver-gold (Ag-Au) alloy nanohole arrays (α-NHA) for ultra-sensitive plasmonic label-free detection of Escherichia Coli (E. coli). Large-area α-NHA were fabricated by using nanoimprint lithography and concurrent thermal evaporation of Ag and Au. The completely miscible Ag-Au alloy exhibits an entirely different dielectric function in the near infra-red wavelength range compared to mono-metallic Ag or Au. The α-NHA demonstrate substantially enhanced refractive index sensitivity of 387 nm/RIU, surpassing those of Ag or Au mono-metallic nanohole arrays by approximately 40%. Moreover, the α-NHA provide highly durable material stability to corrosion and oxidation during over one-month observation. The ultra-sensitive α-NHA allow the label-free detection of E. coli in various concentration levels ranging from 103 to 108 cfu/ml with a calculated limit of detection of 59 cfu/ml. This novel alloy plasmonic material provides a new outlook for widely applicable biosensing and bio-medical applications.
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13
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Chen J, Bai Y, Feng J, Yang F, Xu P, Wang Z, Zhang Q, Yin Y. Anisotropic Seeded Growth of Ag Nanoplates Confined in Shape‐Deformable Spaces. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202011334] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jinxing Chen
- Department of Chemistry University of California Riverside CA 92521 USA
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Yaocai Bai
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Ji Feng
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Fan Yang
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Panpan Xu
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Zichen Wang
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Qiao Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Yadong Yin
- Department of Chemistry University of California Riverside CA 92521 USA
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14
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Chen J, Bai Y, Feng J, Yang F, Xu P, Wang Z, Zhang Q, Yin Y. Anisotropic Seeded Growth of Ag Nanoplates Confined in Shape‐Deformable Spaces. Angew Chem Int Ed Engl 2021; 60:4117-4124. [DOI: 10.1002/anie.202011334] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/04/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Jinxing Chen
- Department of Chemistry University of California Riverside CA 92521 USA
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Yaocai Bai
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Ji Feng
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Fan Yang
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Panpan Xu
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Zichen Wang
- Department of Chemistry University of California Riverside CA 92521 USA
| | - Qiao Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Suzhou Jiangsu 215123 P. R. China
| | - Yadong Yin
- Department of Chemistry University of California Riverside CA 92521 USA
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15
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Abstract
Silver and gold are the most commonly used materials in optics and plasmonics. Silver has the lowest optical losses in the visible and near-infrared wavelength range, but it faces a serious problem—degradation over time. It has been repeatedly reported that the optical properties of silver thin films rapidly degrade when exposed to the atmosphere. This phenomenon was described by various mechanisms: rapid silver oxidation, sorption of sulfur or oxygen, formation of silver compounds with chlorine, sulfur, and oxygen. In this work, we systematically studied single-crystalline silver films from 25 to 70 nm thicknesses for almost two years. The surface morphology, crystalline structure and optical characteristics of the silver films were measured using spectroscopic ellipsometry, ultra-high-resolution scanning electron microscopy, and stylus profilometry under standard laboratory conditions. After 19 months, bulk structures appeared on the surface of thin films. These structures are associated with relaxation of internal stresses combined with dewetting. Single-crystalline silver films deposited using the single-crystalline continuous ultra-smooth, low-loss, low-cost (SCULL) technology with a thickness of 35–50 nm demonstrated the best stability in terms of degradation. We have shown that the number of defects (grain boundaries and joints of terraces) is one of the key factors that influence the degradation intensity of silver films.
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16
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García-Beltrán G, Mercado-Zúñiga C, Torres-SanMiguel CR, Trejo-Valdez M, Villalpando I, Torres-Torres C. Navigation of Silver/Carbon Nanoantennas in Organic Fluids Explored by a Two-Wave Mixing. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1886. [PMID: 32967106 PMCID: PMC7557386 DOI: 10.3390/nano10091886] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/01/2020] [Accepted: 09/03/2020] [Indexed: 12/01/2022]
Abstract
Within this work are analyzed third-order nonlinear optical properties with a potential influence on the dynamic mechanics exhibited by metal/carbon nanofluids. The nanofluids were integrated by multiwall carbon nanotubes decorated with Ag nanoparticles suspended in ethanol or in acetone. Optical third-order nonlinearities were experimentally explored by vectorial two-wave mixing experiments with a Nd-YAG laser system emitting nanosecond pulses at a 532 nm wavelength. An optically induced birefringence in the metal/organic samples seems to be responsible for a significant modification in density and compressibility modulus in the nanosystems. The measured nonlinear refractive index was associated with a thermal process together with changes in density, compressibility modulus and speed of sound in the samples. Nanofluid diffusivity was studied to characterize the dynamic concentration gradients related to the precipitation of nanostructures in the liquid solutions. The evolution of the nanoparticle density suspended in the nanofluids was considered as a temporal-resolved probabilistic system. It is stated that the incorporation of Ag nanoparticles in carbon nanotubes produces strong mechanical changes in carbon-based nanofluids. According to numerical simulations and optical evaluations, immediate applications for developing dynamic nanoantennas optical logic gates and quantum-controlled metal/carbon systems can be contemplated.
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Affiliation(s)
- Geselle García-Beltrán
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Ingeniería Mecánica y Eléctrica Unidad Zacatenco, Instituto Politécnico Nacional, Ciudad de México 07738, Mexico; (G.G.-B.); (C.R.T.-S.)
| | - Cecilia Mercado-Zúñiga
- Departamento de Ingeniería de Materiales, Tecnológico de Estudios Superiores de Coacalco, Cabecera Municipal 55700, Mexico;
| | - Christopher René Torres-SanMiguel
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Ingeniería Mecánica y Eléctrica Unidad Zacatenco, Instituto Politécnico Nacional, Ciudad de México 07738, Mexico; (G.G.-B.); (C.R.T.-S.)
| | - Martín Trejo-Valdez
- Escuela Superior de Ingeniería Química e Industrias Extractivas, Instituto Politécnico Nacional, Ciudad de México 07738, Mexico;
| | - Isaela Villalpando
- Centro de Investigación para los Recursos Naturales, Salaices 33941, Mexico;
| | - Carlos Torres-Torres
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Ingeniería Mecánica y Eléctrica Unidad Zacatenco, Instituto Politécnico Nacional, Ciudad de México 07738, Mexico; (G.G.-B.); (C.R.T.-S.)
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17
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Baffou G, Cichos F, Quidant R. Applications and challenges of thermoplasmonics. NATURE MATERIALS 2020; 19:946-958. [PMID: 32807918 DOI: 10.1038/s41563-020-0740-6] [Citation(s) in RCA: 136] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 06/08/2020] [Indexed: 05/18/2023]
Abstract
Over the past two decades, there has been a growing interest in the use of plasmonic nanoparticles as sources of heat remotely controlled by light, giving rise to the field of thermoplasmonics. The ability to release heat on the nanoscale has already impacted a broad range of research activities, from biomedicine to imaging and catalysis. Thermoplasmonics is now entering an important phase: some applications have engaged in an industrial stage, while others, originally full of promise, experience some difficulty in reaching their potential. Meanwhile, innovative fundamental areas of research are being developed. In this Review, we scrutinize the current research landscape in thermoplasmonics, with a specific focus on its applications and main challenges in many different fields of science, including nanomedicine, cell biology, photothermal and hot-electron chemistry, solar light harvesting, soft matter and nanofluidics.
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Affiliation(s)
- Guillaume Baffou
- Institut Fresnel, CNRS, Aix Marseille University, Ecole Centrale Marseille, Marseille, France.
| | - Frank Cichos
- Molecular Nanophotonics Group, Peter Debye Institute for Soft Matter Physics, Universität Leipzig, Leipzig, Germany.
| | - Romain Quidant
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Barcelona, Spain.
- ICREA - Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain.
- Nanophotonic Systems Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland.
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18
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Nakajima T, Ito T, Nagata H, Nakamura Y, Matsui T, Kitanaka Y, Miyayama M, Tsuchiya T. Passive Component Enhancements in High-Temperature Electronic Devices: A Deterioration Mechanism for Metal Electrodes in Ceramic Film Resistors. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomohiko Nakajima
- Advanced Coating Technology Research Center, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Takeshi Ito
- KOA Corporation, 14016 Oaza, Naka-Minowa, Minowa-machi, Kamiina-gun, Nagano 399−4697, Japan
| | - Hisakazu Nagata
- KOA Corporation, 14016 Oaza, Naka-Minowa, Minowa-machi, Kamiina-gun, Nagano 399−4697, Japan
| | - Yoshinobu Nakamura
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7−3−1 Hongo, Bunkyo-ku, Tokyo 113−8656, Japan
| | - Takahiro Matsui
- KOA Corporation, 14016 Oaza, Naka-Minowa, Minowa-machi, Kamiina-gun, Nagano 399−4697, Japan
| | - Yuuki Kitanaka
- Advanced Coating Technology Research Center, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7−3−1 Hongo, Bunkyo-ku, Tokyo 113−8656, Japan
| | - Masaru Miyayama
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7−3−1 Hongo, Bunkyo-ku, Tokyo 113−8656, Japan
| | - Tetsuo Tsuchiya
- Advanced Coating Technology Research Center, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
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19
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Effect of Flash Light Sintering on Silver Nanowire Electrode Networks. MATERIALS 2020; 13:ma13020404. [PMID: 31952283 PMCID: PMC7014184 DOI: 10.3390/ma13020404] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/10/2020] [Accepted: 01/12/2020] [Indexed: 11/25/2022]
Abstract
We investigated the flash light sintering process to effectively reduce electrical resistance in silver nanowire networks. The optimum condition of the flash light sintering process reduces the electrical resistance by ~20%, while the effect of the conventional thermal annealing processes is rather limited for silver nanowire networks. After flash light sintering, the morphology of the junction between the silver nanowires changes to a mixed-phase structure of the two individual nanowires. This facile and fast process for silver nanowire welding could be highly advantageous to the mass production of silver nanowire networks.
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20
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On the origin of the changes in color of Ag/Al2O3 catalysts during storage. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-04007-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Briggs N, Gebeyehu ZM, Vera A, Zhao T, Wang K, De La Fuente Duran A, Bersch B, Bowen T, Knappenberger KL, Robinson JA. Epitaxial graphene/silicon carbide intercalation: a minireview on graphene modulation and unique 2D materials. NANOSCALE 2019; 11:15440-15447. [PMID: 31393495 DOI: 10.1039/c9nr03721g] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Intercalation of atomic species through epitaxial graphene on silicon carbide began only a few years following its initial report in 2004. The impact of intercalation on the electronic properties of the graphene is well known; however, the intercalant itself can also exhibit intriguing properties not found in nature. This realization has inspired new interest in epitaxial graphene/silicon carbide (EG/SiC) intercalation, where the scope of the technique extends beyond modulation of graphene properties to the creation of new 2D forms of 3D materials. The mission of this minireview is to provide a concise introduction to EG/SiC intercalation and to demonstrate a simplified approach to EG/SiC intercalation. We summarize the primary techniques used to achieve and characterize EG/SiC intercalation, and show that thermal evaporation-based methods can effectively substitute for more complex synthesis techniques, enabling large-scale intercalation of non-refractory metals and compounds including two-dimensional silver (2D-Ag) and gallium nitride (2D-GaNx).
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Affiliation(s)
- Natalie Briggs
- Department of Materials Science & Engineering, Pennsylvania State University, University Park, PA 16802, USA. and Center for 2-Dimensional and Layered Materials, Pennsylvania State University, University Park, PA 16802, USA and 2-Dimensional Crystal Consortium Materials Innovation Platform, Pennsylvania State University, University Park, PA 16802, USA
| | - Zewdu M Gebeyehu
- Department of Materials Science & Engineering, Pennsylvania State University, University Park, PA 16802, USA. and Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, Barcelona, Spain and Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
| | - Alexander Vera
- Department of Materials Science & Engineering, Pennsylvania State University, University Park, PA 16802, USA. and Center for 2-Dimensional and Layered Materials, Pennsylvania State University, University Park, PA 16802, USA
| | - Tian Zhao
- Department of Chemistry, Pennsylvania State University, University Park, PA 16802, USA
| | - Ke Wang
- Materials Characterization Laboratory, University Park, PA 16802, USA
| | - Ana De La Fuente Duran
- Department of Materials Science & Engineering, Pennsylvania State University, University Park, PA 16802, USA.
| | - Brian Bersch
- Department of Materials Science & Engineering, Pennsylvania State University, University Park, PA 16802, USA. and Center for 2-Dimensional and Layered Materials, Pennsylvania State University, University Park, PA 16802, USA
| | - Timothy Bowen
- Department of Materials Science & Engineering, Pennsylvania State University, University Park, PA 16802, USA. and Center for 2-Dimensional and Layered Materials, Pennsylvania State University, University Park, PA 16802, USA
| | | | - Joshua A Robinson
- Department of Materials Science & Engineering, Pennsylvania State University, University Park, PA 16802, USA. and Center for 2-Dimensional and Layered Materials, Pennsylvania State University, University Park, PA 16802, USA and 2-Dimensional Crystal Consortium Materials Innovation Platform, Pennsylvania State University, University Park, PA 16802, USA and Center for Atomically-Thin Multifunctional Coatings, Pennsylvania State University, University Park, PA 16802, USA
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22
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Madeira A, Plissonneau M, Servant L, Goldthorpe IA, Tréguer-Delapierre M. Increasing Silver Nanowire Network Stability through Small Molecule Passivation. NANOMATERIALS 2019; 9:nano9060899. [PMID: 31226818 PMCID: PMC6631436 DOI: 10.3390/nano9060899] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/13/2019] [Accepted: 06/14/2019] [Indexed: 11/16/2022]
Abstract
Silver nanowire (AgNW) transparent electrodes show promise as an alternative to indium tin oxide (ITO). However, these nanowire electrodes degrade in air, leading to significant resistance increases. We show that passivating the nanowire surfaces with small organic molecules of 11-mercaptoundecanoic acid (MUA) does not affect electrode transparency contrary to typical passivation films, and is inexpensive and simple to deposit. The sheet resistance of a 32 nm diameter silver nanowire network coated with MUA increases by only 12% over 120 days when exposed to atmospheric conditions but kept in the dark. The increase is larger when exposed to daylight (588%), but is still nearly two orders of magnitude lower than the resistance increase of unpassivated networks. The difference between the experiments performed under daylight versus the dark exemplifies the importance of testing passivation materials under light exposure.
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Affiliation(s)
- Alexandra Madeira
- CNRS, Institut de Chimie de la Matière Condensée de Bordeaux, University Bordeaux, UMR 5026, 33687 Pessac, France.
| | - Marie Plissonneau
- CNRS, Institut de Chimie de la Matière Condensée de Bordeaux, University Bordeaux, UMR 5026, 33687 Pessac, France.
| | - Laurent Servant
- Institut des Sciences Moléculaires, University of Bordeaux, UMR 5255 33405 TALENCE CEDEX, France.
| | - Irene A Goldthorpe
- Department of Electrical & Computer Engineering and The Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
| | - Mona Tréguer-Delapierre
- CNRS, Institut de Chimie de la Matière Condensée de Bordeaux, University Bordeaux, UMR 5026, 33687 Pessac, France.
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23
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Schörner C, Adhikari S, Lippitz M. A Single-Crystalline Silver Plasmonic Circuit for Visible Quantum Emitters. NANO LETTERS 2019; 19:3238-3243. [PMID: 31009229 DOI: 10.1021/acs.nanolett.9b00773] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Plasmonic waveguides are key elements in nanophotonic devices, serving as optical interconnects between nanoscale light sources and detectors. Multimode operation in plasmonic two-wire transmission lines promises important degrees of freedom for near-field manipulation and information encoding. However, highly confined plasmon propagation along gold nanostructures is typically limited to the near-infrared region due to ohmic losses, excluding all visible quantum emitters from plasmonic circuitry. We report on the top-down fabrication of complex plasmonic nanostructures in single-crystalline silver plates. We demonstrate the controlled remote excitation of a small ensemble of fluorophores by a set of waveguide modes and the emission of the visible luminescence into the waveguide with high efficiency. This approach opens up the study of a nanoscale light-matter interaction between complex plasmonic waveguides and a large variety of quantum emitters available in the visible spectral range.
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Affiliation(s)
- Christian Schörner
- Experimental Physics III , University of Bayreuth , D-95447 Bayreuth , Germany
| | - Subhasis Adhikari
- Experimental Physics III , University of Bayreuth , D-95447 Bayreuth , Germany
| | - Markus Lippitz
- Experimental Physics III , University of Bayreuth , D-95447 Bayreuth , Germany
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24
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Thangamuthu M, Santschi C, Martin OJF. Photocatalytic ammonia production enhanced by a plasmonic near-field and hot electrons originating from aluminium nanostructures. Faraday Discuss 2019; 214:399-415. [DOI: 10.1039/c8fd00146d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We report on plasmonic near-field and hot electron enhanced ammonia production.
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Affiliation(s)
- Madasamy Thangamuthu
- Nanophotonics and Metrology Laboratory (NAM)
- Swiss Federal Institute of Technology Lausanne (EPFL)
- CH-1015 Lausanne
- Switzerland
| | - Christian Santschi
- Nanophotonics and Metrology Laboratory (NAM)
- Swiss Federal Institute of Technology Lausanne (EPFL)
- CH-1015 Lausanne
- Switzerland
| | - Olivier J. F. Martin
- Nanophotonics and Metrology Laboratory (NAM)
- Swiss Federal Institute of Technology Lausanne (EPFL)
- CH-1015 Lausanne
- Switzerland
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25
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Kang M, Ahn MS, Lee Y, Jeong KH. Bioplasmonic Alloyed Nanoislands Using Dewetting of Bilayer Thin Films. ACS APPLIED MATERIALS & INTERFACES 2017; 9:37154-37159. [PMID: 28949500 DOI: 10.1021/acsami.7b10715] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Unlike monometallic materials, bimetallic plasmonic materials offer extensive benefits such as broadband tuning capability or high environmental stability. Here we report a broad range tuning of plasmon resonance of alloyed nanoislands by using solid-state dewetting of gold and silver bilayer thin films. Thermal dewetting after successive thermal evaporation of thin metal double-layer films readily forms AuAg-alloyed nanoislands with a precise composition ratio. The complete miscibility of alloyed nanoislands results in programmable tuning of plasmon resonance wavelength in a broadband visible range. Such extraordinary tuning capability opens up a new direction for plasmonic enhancement in biophotonic applications such as surface-enhanced Raman scattering or plasmon-enhanced fluorescence.
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Affiliation(s)
- Minhee Kang
- Smart Healthcare & Device Research Center, Samsung Medical Center , 81 Irwon-ro, Gangnam-gu, Seoul 06351, Republic of Korea
- Samsung Advanced Institute for Health Sciences & Technology (SAIHST), SungKyunKwan University , 81 Irwon-ro, Gangnam-gu, Seoul 06351, Republic of Korea
| | - Myeong-Su Ahn
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Youngseop Lee
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Ki-Hun Jeong
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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