1
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Wiwatowski K, Sulowska K, Mackowski S. Single-Molecule Fluorescence Probes Interactions between Photoactive Protein-Silver Nanowire Conjugate and Monolayer Graphene. Int J Mol Sci 2024; 25:4873. [PMID: 38732092 PMCID: PMC11084953 DOI: 10.3390/ijms25094873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 04/27/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
In this work, we apply single-molecule fluorescence microscopy and spectroscopy to probe plasmon-enhanced fluorescence and Förster resonance energy transfer in a nanoscale assemblies. The structure where the interplay between these two processes was present consists of photoactive proteins conjugated with silver nanowires and deposited on a monolayer graphene. By comparing the results of continuous-wave and time-resolved fluorescence microscopy acquired for this structure with those obtained for the reference samples, where proteins were coupled with either a graphene monolayer or silver nanowires, we find clear indications of the interplay between plasmonic enhancement and the energy transfer to graphene. Namely, fluorescence intensities calculated for the structure, where proteins were coupled to graphene only, are less than for the structure playing the central role in this study, containing both silver nanowires and graphene. Conversely, decay times extracted for the latter are shorter compared to a protein-silver nanowire conjugate, pointing towards emergence of the energy transfer. Overall, the results show that monitoring the optical properties of single emitters in a precisely designed hybrid nanostructure provides an elegant way to probe even complex combination of interactions at the nanoscale.
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Affiliation(s)
- Kamil Wiwatowski
- Nanophotonics Group, Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland; (K.W.); (K.S.)
| | - Karolina Sulowska
- Nanophotonics Group, Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland; (K.W.); (K.S.)
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Sebastian Mackowski
- Nanophotonics Group, Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland; (K.W.); (K.S.)
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2
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Kim D, Kim G. Bioprinted hASC-laden cell constructs with mechanically stable and cell alignment cue for tenogenic differentiation. Biofabrication 2023; 15:045006. [PMID: 37442127 DOI: 10.1088/1758-5090/ace740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 07/13/2023] [Indexed: 07/15/2023]
Abstract
3D bioprinting is a technology that enables the precise and controlled deposition of cells and an artificial extracellular matrix (ECM) to create functional tissue constructs. However, current 3D bioprinting methods still struggle to obtain mechanically stable and unique cell-morphological structures, such as fully aligned cells. In this study, we propose a new 3D bioprinting approach that utilizes a high concentration of bioink without cells to support mechanical properties and drag flow to fully align cells in a thin bath filled with cell-laden bioink, resulting in a hybrid cell-laden construct with a mechanical stable and fully aligned cell structure. To demonstrate the feasibility of this approach, we used it to fabricate a cell-laden construct using human adipose stem cells (hASCs) for tendon tissue engineering. To achieve appropriate processing conditions, various factors such as the bioink concentration, nozzle moving speed, and volume flow rate were considered. To enhance the biocompatibility of the cell-laden construct, we used porcine decellularized tendon ECM.In vitrocellular responses, including tenogenic differentiation of the fabricated hybrid cell structures with aligned or randomly distributed cells, were evaluated using hASCs. In addition, the mechanical properties of the hybrid cell-laden construct could be adjusted by controlling the concentration of the mechanically reinforcing strut using methacrylated tendon-decellularized extracellular matrix. Based on these results, the hybrid cell-laden structure has the potential to be a highly effective platform for the alignment of musculoskeletal tissues.
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Affiliation(s)
- Dongyun Kim
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea
| | - GeunHyung Kim
- Department of Precision Medicine, Sungkyunkwan University School of Medicine, Suwon 16419, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Republic of Korea
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3
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Nguyen DD, Lee S, Kim I. Recent Advances in Metaphotonic Biosensors. BIOSENSORS 2023; 13:631. [PMID: 37366996 PMCID: PMC10296124 DOI: 10.3390/bios13060631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/04/2023] [Accepted: 06/05/2023] [Indexed: 06/28/2023]
Abstract
Metaphotonic devices, which enable light manipulation at a subwavelength scale and enhance light-matter interactions, have been emerging as a critical pillar in biosensing. Researchers have been attracted to metaphotonic biosensors, as they solve the limitations of the existing bioanalytical techniques, including the sensitivity, selectivity, and detection limit. Here, we briefly introduce types of metasurfaces utilized in various metaphotonic biomolecular sensing domains such as refractometry, surface-enhanced fluorescence, vibrational spectroscopy, and chiral sensing. Further, we list the prevalent working mechanisms of those metaphotonic bio-detection schemes. Furthermore, we summarize the recent progress in chip integration for metaphotonic biosensing to enable innovative point-of-care devices in healthcare. Finally, we discuss the impediments in metaphotonic biosensing, such as its cost effectiveness and treatment for intricate biospecimens, and present a prospect for potential directions for materializing these device strategies, significantly influencing clinical diagnostics in health and safety.
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Affiliation(s)
- Dang Du Nguyen
- Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Seho Lee
- Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Inki Kim
- Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon 16419, Republic of Korea
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4
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Todorov R, Hristova-Vasileva T, Katrova V, Atanasova A. Silver and Gold Containing Compounds of p-Block Elements As Perspective Materials for UV Plasmonics. ACS OMEGA 2023; 8:14321-14341. [PMID: 37125114 PMCID: PMC10134472 DOI: 10.1021/acsomega.2c05943] [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: 12/23/2022] [Accepted: 04/04/2023] [Indexed: 05/03/2023]
Abstract
We present a review of phase formation tendencies, methods for preparation and optical properties of alloys and compounds from the binary systems of silver or gold with metals and metalloids from the p-block of the Periodic system of elements. Reference data about the homogeneity regions in the systems of interest, together with information about the crystalline structure of existing indexed compounds in them, is proposed and statistically analyzed. General background for the synthesis of intermetallic alloys and compounds, and the tendencies for their preparation for plasmonic purposes are presented. The high plasma frequency, ωp of p-block metals makes their alloys with silver and gold an interesting object of study, due to the possibility of ωp variation over a wide interval in the ultraviolet (UV) spectral region with a view to finding more efficient materials for excitation of a localized surface plasmon resonance (LSPR) necessary for various applications and techniques operating in this part of the electromagnetic spectrum. Unlike the alloys between the noble metals Cu, Ag, and Au, which form continuous series of solid solutions, different areas can be observed in the phase diagrams of the Ag(Au)-p-block systems, containing solid solutions, intermetallic compounds, and heterogeneous mixtures. The ability to vary the plasma frequency of solid solutions, like the alloys between the noble metals Cu, Ag, and Au, is the reason to pay attention to the compositions of the Ag(Au-p-block systems that fall in these regions of their phase diagrams. The analysis of the published results for complex permittivity shows that the addition of small amounts of conductive p-block elements to noble metals reduces the energy gap for interband transitions and increases their plasmonic activity in the UV spectral range. The article analyzes the relationship between electrical resistivity and LSPR excitation efficiency, which shows that the intermetallic compounds from Ag(Au)-p-block systems with a well-ordered crystalline structure and good conductivity level can be more effective materials for UV plasmonics than the boundary solid solutions. Intermetallic compounds can be easily obtained in the form of bulk samples, thin films, and nanoparticles with controlled size and geometric shape. The spectral dependences of the plasmon efficiency of the intermetallic compounds, determined from their complex permittivity functions, show that they are promising materials for excitation of LSPR in the UV spectral region.
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Affiliation(s)
- Rosen Todorov
- Institute
of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, bl. 109, 1113 Sofia, Bulgaria
| | - Temenuga Hristova-Vasileva
- Institute
of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, bl. 109, 1113 Sofia, Bulgaria
- Institute
of Solid State Physics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
| | - Vesela Katrova
- Institute
of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, bl. 109, 1113 Sofia, Bulgaria
| | - Anna Atanasova
- Institute
of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, bl. 109, 1113 Sofia, Bulgaria
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5
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Ding X, Rubby MF, Que S, Uchayash S, Que L. Facile Process for Fabrication of Silicon Micro-Nanostructures of Different Shapes as Molds for Fabricating Flexible Micro-Nanostructures and Wearable Sensors. ACS APPLIED MATERIALS & INTERFACES 2023; 15:12202-12208. [PMID: 36808523 DOI: 10.1021/acsami.2c22285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
We report a method to fabricate silicon micro-nanostructures of different shapes by tuning the number of layers and the sizes of self-assembled polystyrene beads, which serve as the mask, and by tuning the reactive ion etching (RIE) time. This process is simple, scalable, and inexpensive without using any sophisticated nanomanufacturing equipment. Specifically, in this work, we demonstrate the proposed process by fabricating silicon micro- or nanoflowers, micro- or nanobells, nanopyramids, and nanotriangles using a self-assembled monolayer or bilayer of polystyrene beads as the mask. We also fabricate flexible micro-nanostructures by using silicon molds with micro-nanostructures. Finally, we demonstrate the fabrication of bandage-type electrochemical sensors with micro-nanostructured working electrodes for detecting dopamine, a neurotransmitter related to stress and neurodegenerative diseases in artificial sweat. All these demonstrations indicate that the proposed process provides a low-cost, easy-to-use approach for fabricating silicon micro-nanostructures and flexible micro-nanostructures, thus paving a way for developing wearable micro-nanostructures enabled sensors for a variety of applications in an efficient manner.
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Affiliation(s)
- Xiaoke Ding
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Md Fazlay Rubby
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Suya Que
- School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Sajid Uchayash
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, United States
| | - Long Que
- Department of Electrical and Computer Engineering, Iowa State University, Ames, Iowa 50011, United States
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6
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Feliczak-Guzik A. Nanomaterials as Photocatalysts-Synthesis and Their Potential Applications. MATERIALS (BASEL, SWITZERLAND) 2022; 16:ma16010193. [PMID: 36614532 PMCID: PMC9822232 DOI: 10.3390/ma16010193] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 05/25/2023]
Abstract
Increasing demand for energy and environmental degradation are the most serious problems facing the man. An interesting issue that can contribute to solving these problems is the use of photocatalysis. According to literature, solar energy in the presence of a photocatalyst can effectively (i) be converted into electricity/fuel, (ii) break down chemical and microbial pollutants, and (iii) help water purification. Therefore, the search for new, efficient, and stable photocatalysts with high application potential is a point of great interest. The photocatalysts must be characterized by the ability to absorb radiation from a wide spectral range of light, the appropriate position of the semiconductor energy bands in relation to the redox reaction potentials, and the long diffusion path of charge carriers, besides the thermodynamic, electrochemical, and photoelectrochemical stabilities. Meeting these requirements by semiconductors is very difficult. Therefore, efforts are being made to increase the efficiency of photo processes by changing the electron structure, surface morphology, and crystal structure of semiconductors. This paper reviews the recent literature covering the synthesis and application of nanomaterials in photocatalysis.
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Affiliation(s)
- Agnieszka Feliczak-Guzik
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
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7
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Berganza L, Litti L, Meneghetti M, Lanceros-Méndez S, Reguera J. Enhancement of Magnetic Surface-Enhanced Raman Scattering Detection by Tailoring Fe 3O 4@Au Nanorod Shell Thickness and Its Application in the On-site Detection of Antibiotics in Water. ACS OMEGA 2022; 7:45493-45503. [PMID: 36530269 PMCID: PMC9753213 DOI: 10.1021/acsomega.2c06099] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 11/17/2022] [Indexed: 06/17/2023]
Abstract
Surface-enhanced Raman scattering (SERS) has become a promising method for the detection of contaminants or biomolecules in aqueous media. The low interference of water, the unique spectral fingerprint, and the development of portable and handheld equipment for in situ measurements underpin its predominance among other spectroscopic techniques. Among the SERS nanoparticle substrates, those composed of plasmonic and magnetic components are prominent examples of versatility and efficiency. These substrates harness the ability to capture the target analyte, concentrate it, and generate unique hotspots for superior enhancement. Here, we have evaluated the use of gold-coated magnetite nanorods as a novel multifunctional magnetic-plasmonic SERS substrate. The nanostructures were synthesized starting from core-satellite structures. A series of variants with different degrees of Au coatings were then prepared by seed-mediated growth of gold, from core-satellite structures to core-shell with partial and complete shells. All of them were tested, using a portable Raman instrument, with the model molecule 4-mercaptobenzoic acid in colloidal suspension and after magnetic separation. Experimental results were compared with the boundary element method to establish the mechanism of Raman enhancement. The results show a quick magnetic separation of the nanoparticles and excellent Raman enhancement for all the nanoparticles both in dispersion and magnetically concentrated with limits of detection up to the nM range (∼50 nM) and a quantitative calibration curve. The nanostructures were then tested for the sensing of the antibiotic ciprofloxacin, highly relevant in preventing antibiotic contaminants in water reservoirs and drug monitoring, showing that ciprofloxacin can be detected using a portable Raman instrument at a concentration as low as 100 nM in a few minutes, which makes it highly relevant in practical point-of-care devices and in situ use.
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Affiliation(s)
- Leixuri
B. Berganza
- BCMaterials,
Basque Center for Materials, Applications, and Nanostructures, UPV/EHU
Science Park, 48940Leioa, Spain
| | - Lucio Litti
- Nanostructures
and Optics Laboratory, Department of Chemical Sciences, University of Padova, Via Marzolo, 1, 35131Padova, Italy
| | - Moreno Meneghetti
- Nanostructures
and Optics Laboratory, Department of Chemical Sciences, University of Padova, Via Marzolo, 1, 35131Padova, Italy
| | - Senentxu Lanceros-Méndez
- BCMaterials,
Basque Center for Materials, Applications, and Nanostructures, UPV/EHU
Science Park, 48940Leioa, Spain
- Ikerbasque,
Basque Foundation for Science Bilbao, Plaza Euskadi 5, 48009Bilbao, Spain
| | - Javier Reguera
- BCMaterials,
Basque Center for Materials, Applications, and Nanostructures, UPV/EHU
Science Park, 48940Leioa, Spain
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8
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Sun L, Liu D, Su J, Li X, Zhou S, Wang K, Zhang Q. Near Perfect Absorber for Long-Wave Infrared Based on Localized Surface Plasmon Resonance. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4223. [PMID: 36500845 PMCID: PMC9736474 DOI: 10.3390/nano12234223] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/21/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
In recent years, broadband absorbers in the long-wave infrared (LWIR) spectrum have shown great scientific value and advantages in some areas, such as thermal imaging and radiation modulation. However, designing a broadband absorber with an ultra-high absorption rate has always been a challenge. In this paper, we design a near perfect absorber that is highly tunable, angle insensitive, and has polarization independence for LWIR. By using multi-mode localized surface plasmon resonance (LSPR) of a surface metal structure, the absorber achieves a very high absorption average of 99.7% in wavelengths from 9.7 μm to 12.0 μm. For incident light, the meta-structure absorber exhibits excellent polarization independence. When the incident angle increases from 0° up to 60°, the absorption rate maintains over 85%. By modulating the size of the structure, the meta-structure absorber can also achieve a high absorption rate of 95.6%, covering the entire LWIR band (8-14 μm in wavelength). This meta-structure absorber has application prospects in infrared detecting, infrared camouflage, radiation cooling, and other fields.
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Affiliation(s)
- Leihao Sun
- Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Dingquan Liu
- Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, China
- School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junli Su
- Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Xingyu Li
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Sheng Zhou
- Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
| | - Kaixuan Wang
- Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
- School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiuyu Zhang
- Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, China
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9
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Schmidl G, Raugust M, Jia G, Dellith A, Dellith J, Schmidl F, Plentz J. Porous spherical gold nanoparticles via a laser induced process. NANOSCALE ADVANCES 2022; 4:4122-4130. [PMID: 36285216 PMCID: PMC9514562 DOI: 10.1039/d2na00396a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 08/15/2022] [Indexed: 06/16/2023]
Abstract
Nanoparticles consisting of a mixture of several metals and also porous nanoparticles due to their special structure exhibit properties that find applications in spectroscopic detection or catalysis. Different approaches of top down or bottom up technologies exist for the fabrication of such particles. We present a novel combined approach for the fabrication of spherical porous gold nanoparticles on low-cost glass substrates under ambient conditions using a UV-laser induced particle preparation process with subsequent wet chemical selective etching. In this preparation route, nanometer-sized branched structures are formed in spherical particles. The laser process, which is applied to a silver/gold bilayer system with different individual layer thicknesses, generates spherical mixed particles in a nanosecond range and influences the properties of the fabricated nanoparticles, such as the size and the mixture and thus the spectral response. The subsequent etching process is performed by selective wet chemical removal of silver from the nanoparticles with diluted nitric acid. The gold to silver ratio was investigated by energy-dispersive X-ray spectroscopy. The porosity depends on laser parameters and film thickness as well as on etching parameters such as time. After etching, the surface area of the remaining Au nanoparticles increases which makes these particles interesting for catalysis and also as carrier particles for substances. Such substances can be positioned at defined locations or be released in appropriate environments. Absorbance spectra are also analyzed to show how the altered fractured shape of the particles changes localized plasmon resonances of the resultingt particles.
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Affiliation(s)
- Gabriele Schmidl
- Leibniz Institute of Photonic Technology (Leibniz IPHT) Albert-Einstein-Straße 9 Jena 07745 Germany +49 (0) 3641 206299 +49 (0)3641 206438
| | - Marc Raugust
- Friedrich Schiller University, Institute of Solid State Physics Helmholtzweg 5 Jena 07743 Germany
- Leibniz Institute of Photonic Technology (Leibniz IPHT) Albert-Einstein-Straße 9 Jena 07745 Germany +49 (0) 3641 206299 +49 (0)3641 206438
| | - Guobin Jia
- Leibniz Institute of Photonic Technology (Leibniz IPHT) Albert-Einstein-Straße 9 Jena 07745 Germany +49 (0) 3641 206299 +49 (0)3641 206438
| | - Andrea Dellith
- Leibniz Institute of Photonic Technology (Leibniz IPHT) Albert-Einstein-Straße 9 Jena 07745 Germany +49 (0) 3641 206299 +49 (0)3641 206438
| | - Jan Dellith
- Leibniz Institute of Photonic Technology (Leibniz IPHT) Albert-Einstein-Straße 9 Jena 07745 Germany +49 (0) 3641 206299 +49 (0)3641 206438
| | - Frank Schmidl
- Friedrich Schiller University, Institute of Solid State Physics Helmholtzweg 5 Jena 07743 Germany
| | - Jonathan Plentz
- Leibniz Institute of Photonic Technology (Leibniz IPHT) Albert-Einstein-Straße 9 Jena 07745 Germany +49 (0) 3641 206299 +49 (0)3641 206438
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10
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Sniķeris J, Gerbreders V, Bulanovs A, Sļedevskis Ē. Effects of focused electron beam irradiation parameters on direct nanostructure formation on Ag surfaces. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:1004-1010. [PMID: 36225851 PMCID: PMC9520845 DOI: 10.3762/bjnano.13.87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
Metallic nanostructures are applied in many fields, including photonics and plasmonics, due to their ability to absorb or emit light at frequencies which depend on their size and shape. It was recently shown that irradiation by a focused electron beam can promote the growth of nanostructures on metal surfaces and the height of these structures depends on the duration of the irradiation and the material of the surface. However, the effects on growth dynamics of numerous irradiation parameters, such as beam current or angle of incidence, have not yet been studied in detail. We explore the effects of focusing, angle of incidence, and current of the electron beam on the size and shape of the resulting structures on an Ag surface. In addition, we investigate how the nitrogen plasma cleaning procedure of a vacuum chamber can affect the growth of these structures. A beam current of around 40 pA resulted in the fastest structure growth rate. By increasing the beam diameter and angle of incidence the growth rate decreased; however, by raising the beam focus up to 5-6 μm above the surface the growth rate increased. Vacuum chamber cleaning reduced structure growth rate for a few hours. These findings can help to better control and optimise the growth of nanostructures on metal surfaces undergoing irradiation by a focused electron beam.
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Affiliation(s)
- Jānis Sniķeris
- Daugavpils University, Institute of Life Sciences and Technologies, Parādes Str. 1, Daugavpils, LV-5401, Latvia
| | - Vjačeslavs Gerbreders
- Daugavpils University, Institute of Life Sciences and Technologies, Parādes Str. 1, Daugavpils, LV-5401, Latvia
| | - Andrejs Bulanovs
- Daugavpils University, Institute of Life Sciences and Technologies, Parādes Str. 1, Daugavpils, LV-5401, Latvia
| | - Ēriks Sļedevskis
- Daugavpils University, Institute of Life Sciences and Technologies, Parādes Str. 1, Daugavpils, LV-5401, Latvia
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11
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Alves R, Pacheco-Peña V, Navarro-Cía M. Madelung Formalism for Electron Spill-Out in Nonlocal Nanoplasmonics. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2022; 126:14758-14765. [PMID: 36081902 PMCID: PMC9442648 DOI: 10.1021/acs.jpcc.2c04828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/10/2022] [Indexed: 06/15/2023]
Abstract
Current multiscale plasmonic systems pose a modeling challenge. Classical macroscopic theories fail to capture quantum effects in such systems, whereas quantum electrodynamics is impractical given the total size of the experimentally relevant systems, as the number of interactions is too large to be addressed one by one. To tackle the challenge, in this paper we propose to use the Madelung form of the hydrodynamic Drude model, in which the quantum effect electron spill-out is incorporated by describing the metal-dielectric interface using a super-Gaussian function. The results for a two-dimensional nanoplasmonic wedge are correlated to those from nonlocal full-wave numerical calculations based on a linearized hydrodynamic Drude model commonly employed in the literature, showing good qualitative agreement. Additionally, a conformal transformation perspective is provided to explain qualitatively the findings. The methodology described here may be applied to understand, both numerically and theoretically, the modular inclusions of additional quantum effects, such as electron spill-out and nonlocality, that cannot be incorporated seamlessly by using other approaches.
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Affiliation(s)
- Rúben
A. Alves
- School
of Physics and Astronomy, University of
Birmingham, Birmingham B15 2TT, United Kingdom
| | - Víctor Pacheco-Peña
- School
of Mathematics, Statistics and Physics, Newcastle University, Newcastle
Upon Tyne NE1 7RU, United
Kingdom
| | - Miguel Navarro-Cía
- School
of Physics and Astronomy, University of
Birmingham, Birmingham B15 2TT, United Kingdom
- Department
of Electronic, Electrical and Systems Engineering, University of Birmingham, Birmingham B15 2TT, United Kingdom
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12
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Mehla S, Selvakannan PR, Bhargava SK. Readily tunable surface plasmon resonances in gold nanoring arrays fabricated using lateral electrodeposition. NANOSCALE 2022; 14:9989-9996. [PMID: 35793170 DOI: 10.1039/d2nr02198f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Generation and fine-tuning of surface plasmon resonances is a prerequstite for several established and emerging applications such as photovoltaics, photocatalysis, photothermal therapy, surface-enhanced spectroscopy, sensing, superlensing and lasing. We present a low-cost and scalable lateral electrodeposition method for fabrication of high aspect ratio gold nanoring arrays that exhibit multiple surface plasmon resonances in the visible to near-infrared region. Nickel disc arrays of 2 µm size were initially fabricated using maskless lithography and e-beam evaporation. Selective electrodeposition of gold on the lateral surfaces of nickel disc arrays was achieved using a 50 nm SiO2 film as an insulating mask. Growing from miniscule 100 nm wide lateral surfaces of nickel discs, nanorings with height up to 1084 nm could be obtained with their thickness and aspect ratio governed by the duration of electrodeposition. Facile tuning of the number of plasmon resonances, their resonant wavelength and relative intensity is demonstrated with applications in plasmon mediated photocatalysis and surface-enhanced Raman scattering.
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Affiliation(s)
- Sunil Mehla
- Centre for Advanced Materials and Industrial Chemistry, School of Science, Engineering and Health, RMIT University, Melbourne, Australia.
| | - P R Selvakannan
- Centre for Advanced Materials and Industrial Chemistry, School of Science, Engineering and Health, RMIT University, Melbourne, Australia.
| | - Suresh K Bhargava
- Centre for Advanced Materials and Industrial Chemistry, School of Science, Engineering and Health, RMIT University, Melbourne, Australia.
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13
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Salvador-Porroche A, Herrer L, Sangiao S, Philipp P, Cea P, María De Teresa J. High-Throughput Direct Writing of Metallic Micro- and Nano-Structures by Focused Ga + Beam Irradiation of Palladium Acetate Films. ACS APPLIED MATERIALS & INTERFACES 2022; 14:28211-28220. [PMID: 35671475 PMCID: PMC9227716 DOI: 10.1021/acsami.2c05218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 05/26/2022] [Indexed: 05/16/2023]
Abstract
Metallic nanopatterns are ubiquitous in applications that exploit the electrical conduction at the nanoscale, including interconnects, electrical nanocontacts, and small gaps between metallic pads. These metallic nanopatterns can be designed to show additional physical properties (optical transparency, plasmonic effects, ferromagnetism, superconductivity, heat evacuation, etc.). For these reasons, an intense search for novel lithography methods using uncomplicated processes represents a key on-going issue in the achievement of metallic nanopatterns with high resolution and high throughput. In this contribution, we introduce a simple methodology for the efficient decomposition of Pd3(OAc)6 spin-coated thin films by means of a focused Ga+ beam, which results in metallic-enriched Pd nanostructures. Remarkably, the usage of a charge dose as low as 30 μC/cm2 is sufficient to fabricate structures with a metallic Pd content above 50% (at.) exhibiting low electrical resistivity (70 μΩ·cm). Binary-collision-approximation simulations provide theoretical support to this experimental finding. Such notable behavior is used to provide three proof-of-concept applications: (i) creation of electrical contacts to nanowires, (ii) fabrication of small (40 nm) gaps between large metallic contact pads, and (iii) fabrication of large-area metallic meshes. The impact across several fields of the direct decomposition of spin-coated organometallic films by focused ion beams is discussed.
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Affiliation(s)
- Alba Salvador-Porroche
- Instituto
de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Lucía Herrer
- Instituto
de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Soraya Sangiao
- Instituto
de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
- Laboratorio
de Microscopías Avanzadas (LMA), Universidad de Zaragoza, Zaragoza 50018, Spain
| | - Patrick Philipp
- Advanced
Instrumentation for Nano-Analytics (AINA), MRT Department, Luxembourg Institute of Science and Technology (LIST), 41 rue du Brill, Belvaux 4422, Luxembourg
| | - Pilar Cea
- Instituto
de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
- Laboratorio
de Microscopías Avanzadas (LMA), Universidad de Zaragoza, Zaragoza 50018, Spain
| | - José María De Teresa
- Instituto
de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
- Laboratorio
de Microscopías Avanzadas (LMA), Universidad de Zaragoza, Zaragoza 50018, Spain
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14
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Greenwood A, Balram KC, Gersen H. Smooth Sidewalls on Crystalline Gold through Facet-Selective Anisotropic Reactive Ion Etching: Toward Low-Loss Plasmonic Devices. NANO LETTERS 2022; 22:4617-4621. [PMID: 35652540 PMCID: PMC9228404 DOI: 10.1021/acs.nanolett.1c04405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 05/28/2022] [Indexed: 06/15/2023]
Abstract
Quantum plasmonics aims to harness the deeply subwavelength confinement provided by plasmonic devices to engineer more efficient interfaces to quantum systems in particular single emitters. Realizing this vision is hampered by the roughness-induced scattering and loss inherent in most nanofabricated devices. In this work, we show evidence of a reactive ion etching process to selectively etch gold along select crystalline facets. Since the etch is facet selective, the sidewalls of fabricated devices are smoother than the lithography induced line-edge roughness with the prospect of achieving atomic smoothness by further optimization of the etch chemistry. This opens up a route toward fabricating integrated plasmonic circuits that can achieve loss metrics close to fundamental bounds.
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Affiliation(s)
- Alexander
B. Greenwood
- Nanophotonics
and Nanophysics Group, H. H. Wills Physics Laboratory, University of Bristol, Bristol, BS8 1TL, United Kingdom
| | - Krishna C. Balram
- Quantum
Engineering Technology Laboratories and Department of Electrical and
Electronic Engineering, University of Bristol, Woodland Road, Bristol BS8 1UB, United
Kingdom
| | - Henkjan Gersen
- Nanophotonics
and Nanophysics Group, H. H. Wills Physics Laboratory, University of Bristol, Bristol, BS8 1TL, United Kingdom
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15
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Segervald J, Boulanger N, Salh R, Jia X, Wågberg T. Plasmonic metasurface assisted by thermally imprinted polymer nano‐well array for surface enhanced Raman scattering. NANO SELECT 2022. [DOI: 10.1002/nano.202200010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
| | | | | | - Xueen Jia
- Department of Physics Umeå University Umeå Sweden
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16
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Ma C, Zhao F, Zhou F, Li M, Zheng Z, Yan J, Li J, Li X, Guan BO, Chen K. Etching-free high-throughput intersectional nanofabrication of diverse optical nanoantennas for nanoscale light manipulation. J Colloid Interface Sci 2022; 622:950-959. [PMID: 35561613 DOI: 10.1016/j.jcis.2022.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/29/2022] [Accepted: 05/01/2022] [Indexed: 01/26/2023]
Abstract
The capabilities to manipulate light-matter interaction at the nanoscale lie at the core of many promising photonic applications. Optical nanoantennas, made of metallic or dielectric materials, have seen a rapid development for their remarkable optical properties facilitating the coupling of electromagnetic waves with subwavelength entities. However, high-throughput and cost-effective fabrication of these nanoantennas is still a daunting challenge. In this work, we provide a versatile nanofabrication method capable of producing large scale optical nanoantennas with different shapes. It is developed from colloidal lithography with no dry etching required. Furthermore, both metallic and all-dielectric nanoantennas can be readily fabrication in a high-throughput fashion. Au and Si nanodisks were fabricated and employed to assemble heterostructures with monolayer tungsten disulfide. Strong coupling is observed in both systems between plasmon modes (Au nanodisks) or anapole modes (Si nanodisks) with excitons. We believe that this nanofabrication method could find a wide range of applications with the diverse optical nanoantennas it can engineer.
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Affiliation(s)
- Churong Ma
- Guangdong Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Feng Zhao
- Guangdong Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Fangrong Zhou
- Guangdong Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Meng Li
- Guangdong Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Zhaoqiang Zheng
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Jiahao Yan
- Institute of Nanophotonics, Jinan University, Guangzhou 511443, China
| | - Jie Li
- Guangdong Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Xiangping Li
- Guangdong Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Bai-Ou Guan
- Guangdong Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Kai Chen
- Guangdong Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China.
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17
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Colapicchioni V, Millozzi F, Parolini O, Palacios D. Nanomedicine, a valuable tool for skeletal muscle disorders: Challenges, promises, and limitations. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2022; 14:e1777. [PMID: 35092179 PMCID: PMC9285803 DOI: 10.1002/wnan.1777] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 12/24/2021] [Accepted: 01/06/2022] [Indexed: 12/15/2022]
Abstract
Muscular dystrophies are a group of rare genetic disorders characterized by progressive muscle weakness, which, in the most severe forms, leads to the patient's death due to cardiorespiratory problems. There is still no cure available for these diseases and significant effort is being placed into developing new strategies to either correct the genetic defect or to compensate muscle loss by stimulating skeletal muscle regeneration. However, the vast anatomical extension of the target tissue poses great challenges to these goals, highlighting the need for complementary strategies. Nanomedicine is an actively evolving field that merges nanotechnologies with biomedical and pharmaceutical sciences. It holds great potential in regenerative medicine, both in supporting tissue engineering and regeneration, and in optimizing drug and oligonucleotide delivery and gene therapy strategies. In this review, we will summarize the state‐of‐the‐art in the field of nanomedicine applied to skeletal muscle regeneration. We will discuss the recent work toward the development of nanopatterned scaffolds for tissue engineering, the efforts in the synthesis of organic and inorganic nanoparticles for gene therapy and drug delivery applications, as well as their use as immune modulators. Although nanomedicine holds great promise for muscle and other degenerative diseases, many challenges still need to be systematically addressed to assure a smooth transition from the bench to the bedside. This article is categorized under:Implantable Materials and Surgical Technologies > Nanotechnology in Tissue Repair and Replacement
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Affiliation(s)
- Valentina Colapicchioni
- Italian National Research Council, Institute for Atmospheric Pollution Research (CNR-IIA), Rome, Italy.,Mhetra LLC, Miami, Florida, USA
| | - Francesco Millozzi
- Histology and Embryology Unit, DAHFMO, Sapienza University, Rome, Italy.,IRCCS Santa Lucia Foundation, Rome, Italy
| | - Ornella Parolini
- Department of Life Sciences and Public Health, Università Cattolica del Sacro Cuore, Rome, Italy.,IRCCS Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Daniela Palacios
- Department of Life Sciences and Public Health, Università Cattolica del Sacro Cuore, Rome, Italy.,IRCCS Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
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18
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Schirato A, Crotti G, Gonçalves Silva M, Teles-Ferreira DC, Manzoni C, Proietti Zaccaria R, Laporta P, de Paula AM, Cerullo G, Della Valle G. Ultrafast Plasmonics Beyond the Perturbative Regime: Breaking the Electronic-Optical Dynamics Correspondence. NANO LETTERS 2022; 22:2748-2754. [PMID: 35343692 PMCID: PMC9011396 DOI: 10.1021/acs.nanolett.1c04608] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 03/13/2022] [Indexed: 06/14/2023]
Abstract
The transient optical response of plasmonic nanostructures has recently been the focus of extensive research. Accurate prediction of the ultrafast dynamics following excitation of hot electrons by ultrashort laser pulses is of major relevance in a variety of contexts from the study of light harvesting and photocatalytic processes to nonlinear nanophotonics and the all-optical modulation of light. So far, all studies have assumed the correspondence between the temporal evolution of the dynamic optical signal, retrieved by transient absorption spectroscopy, and that of the photoexcited hot electrons, described in terms of their temperature. Here, we show both theoretically and experimentally that this correspondence does not hold under a nonperturbative excitation regime. Our results indicate that the main mechanism responsible for the breaking of the correspondence between electronic and optical dynamics is universal in plasmonics, being dominated by the nonlinear smearing of the Fermi-Dirac occupation probability at high hot-electron temperatures.
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Affiliation(s)
- Andrea Schirato
- Dipartimento
di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci, 32, I-20133 Milano, Italy
- Istituto
Italiano di Tecnologia, via Morego 30, I-16163 Genova, Italy
| | - Giulia Crotti
- Dipartimento
di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci, 32, I-20133 Milano, Italy
- Istituto
Italiano di Tecnologia, via Morego 30, I-16163 Genova, Italy
| | - Mychel Gonçalves Silva
- Departamento
de Física, Universidade Federal de
Minas Gerais, 31270-901 Belo Horizonte, MG Brazil
| | | | - Cristian Manzoni
- Istituto
di Fotonica e Nanotecnologie - Consiglio Nazionale delle Ricerche, Piazza Leonardo da Vinci, 32, I-20133 Milano, Italy
| | - Remo Proietti Zaccaria
- Istituto
Italiano di Tecnologia, via Morego 30, I-16163 Genova, Italy
- Cixi Institute
of Biomedical Engineering, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo 315201, China
| | - Paolo Laporta
- Dipartimento
di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci, 32, I-20133 Milano, Italy
- Istituto
di Fotonica e Nanotecnologie - Consiglio Nazionale delle Ricerche, Piazza Leonardo da Vinci, 32, I-20133 Milano, Italy
| | - Ana Maria de Paula
- Departamento
de Física, Universidade Federal de
Minas Gerais, 31270-901 Belo Horizonte, MG Brazil
| | - Giulio Cerullo
- Dipartimento
di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci, 32, I-20133 Milano, Italy
- Istituto
di Fotonica e Nanotecnologie - Consiglio Nazionale delle Ricerche, Piazza Leonardo da Vinci, 32, I-20133 Milano, Italy
| | - Giuseppe Della Valle
- Dipartimento
di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci, 32, I-20133 Milano, Italy
- Istituto
di Fotonica e Nanotecnologie - Consiglio Nazionale delle Ricerche, Piazza Leonardo da Vinci, 32, I-20133 Milano, Italy
- Istituto
Nazionale di Fisica Nucleare - Sezione di Milano, Via Celoria, 16, I-20133 Milano, Italy
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19
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Ali A, El-Mellouhi F, Mitra A, Aïssa B. Research Progress of Plasmonic Nanostructure-Enhanced Photovoltaic Solar Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:788. [PMID: 35269276 PMCID: PMC8912550 DOI: 10.3390/nano12050788] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/02/2022] [Accepted: 02/11/2022] [Indexed: 02/01/2023]
Abstract
Enhancement of the electromagnetic properties of metallic nanostructures constitute an extensive research field related to plasmonics. The latter term is derived from plasmons, which are quanta corresponding to longitudinal waves that are propagating in matter by the collective motion of electrons. Plasmonics are increasingly finding wide application in sensing, microscopy, optical communications, biophotonics, and light trapping enhancement for solar energy conversion. Although the plasmonics field has relatively a short history of development, it has led to substantial advancement in enhancing the absorption of the solar spectrum and charge carrier separation efficiency. Recently, huge developments have been made in understanding the basic parameters and mechanisms governing the application of plasmonics, including the effects of nanoparticles' size, arrangement, and geometry and how all these factors impact the dielectric field in the surrounding medium of the plasmons. This review article emphasizes recent developments, fundamentals, and fabrication techniques for plasmonic nanostructures while investigating their thermal effects and detailing light-trapping enhancement mechanisms. The mismatch effect of the front and back light grating for optimum light trapping is also discussed. Different arrangements of plasmonic nanostructures in photovoltaics for efficiency enhancement, plasmonics' limitations, and modeling performance are also deeply explored.
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Affiliation(s)
- Adnan Ali
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha P.O. Box 34110, Qatar; (A.A.); (F.E.-M.)
| | - Fedwa El-Mellouhi
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha P.O. Box 34110, Qatar; (A.A.); (F.E.-M.)
| | - Anirban Mitra
- Department of Physics, Indian Institute of Technology Roorkee, Roorkee 247667, India;
| | - Brahim Aïssa
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha P.O. Box 34110, Qatar; (A.A.); (F.E.-M.)
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20
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Altug H, Oh SH, Maier SA, Homola J. Advances and applications of nanophotonic biosensors. NATURE NANOTECHNOLOGY 2022; 17:5-16. [PMID: 35046571 DOI: 10.1038/s41565-021-01045-5] [Citation(s) in RCA: 176] [Impact Index Per Article: 88.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 11/02/2021] [Indexed: 05/14/2023]
Abstract
Nanophotonic devices, which control light in subwavelength volumes and enhance light-matter interactions, have opened up exciting prospects for biosensing. Numerous nanophotonic biosensors have emerged to address the limitations of the current bioanalytical methods in terms of sensitivity, throughput, ease-of-use and miniaturization. In this Review, we provide an overview of the recent developments of label-free nanophotonic biosensors using evanescent-field-based sensing with plasmon resonances in metals and Mie resonances in dielectrics. We highlight the prospects of achieving an improved sensor performance and added functionalities by leveraging nanostructures and on-chip and optoelectronic integration, as well as microfluidics, biochemistry and data science toolkits. We also discuss open challenges in nanophotonic biosensing, such as reducing the overall cost and handling of complex biological samples, and provide an outlook for future opportunities to improve these technologies and thereby increase their impact in terms of improving health and safety.
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Affiliation(s)
- Hatice Altug
- Laboratory of Bionanophotonic Systems, Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
| | - Sang-Hyun Oh
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, USA.
| | - Stefan A Maier
- Chair in Hybrid Nanosystems, Nanoinstitut Munich, Faculty of Physics, Ludwig-Maximilians Universität München, Munich, Germany.
- Department of Physics, Imperial College London, London, UK.
| | - Jiří Homola
- Institute of Photonics and Electronics of the Czech Academy of Sciences, Prague, Czech Republic.
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21
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Xue W, Shi W, Kong Y, Kuss M, Duan B. Anisotropic scaffolds for peripheral nerve and spinal cord regeneration. Bioact Mater 2021; 6:4141-4160. [PMID: 33997498 PMCID: PMC8099454 DOI: 10.1016/j.bioactmat.2021.04.019] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/05/2021] [Accepted: 04/13/2021] [Indexed: 12/12/2022] Open
Abstract
The treatment of long-gap (>10 mm) peripheral nerve injury (PNI) and spinal cord injury (SCI) remains a continuous challenge due to limited native tissue regeneration capabilities. The current clinical strategy of using autografts for PNI suffers from a source shortage, while the pharmacological treatment for SCI presents dissatisfactory results. Tissue engineering, as an alternative, is a promising approach for regenerating peripheral nerves and spinal cords. Through providing a beneficial environment, a scaffold is the primary element in tissue engineering. In particular, scaffolds with anisotropic structures resembling the native extracellular matrix (ECM) can effectively guide neural outgrowth and reconnection. In this review, the anatomy of peripheral nerves and spinal cords, as well as current clinical treatments for PNI and SCI, is first summarized. An overview of the critical components in peripheral nerve and spinal cord tissue engineering and the current status of regeneration approaches are also discussed. Recent advances in the fabrication of anisotropic surface patterns, aligned fibrous substrates, and 3D hydrogel scaffolds, as well as their in vitro and in vivo effects are highlighted. Finally, we summarize potential mechanisms underlying the anisotropic architectures in orienting axonal and glial cell growth, along with their challenges and prospects.
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Affiliation(s)
- Wen Xue
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Wen Shi
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Yunfan Kong
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Mitchell Kuss
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Bin Duan
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Mechanical Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
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22
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Application of Nanooptics in Photographic Imagery and Medical Imaging. J CHEM-NY 2021. [DOI: 10.1155/2021/2384322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background. At present, with the continuous development of nanotechnology, great changes have taken place in people’s lives in medical treatment, production, daily leisure, and so on. Nanooptical technology is entirely based on nanotechnology that laser and visible light are limited to submicron structures (nanopores, nanoslits, and nanoneedles). Due to the great development potential of nanooptical technology in nanoscale sensors, TOF camera applications, THz imaging technology, and other imaging equipment materials and applications, people have been interested in it, recently. Scope and Approach. In this review, the importance of good practices for nanooptical technology used in equipment as both nanometer scale sensors and optical auxiliary equipment is described. Based on recent reports, this work discussed the development of nanooptical technology in daily photography and medical imaging from both the positive and the negative sides and compared the engineering techniques. Key Findings and Conclusions. As a kind of new optical technology, nanooptical technology can produce the plasmonic effect under the intense collision of atoms and electrons in nanostructures. It has significant effects in superresolution nanolithography, high-density data storage, near-field optics, and other fields. Although the current nanooptic technology is not extremely mature, the results obtained from current works are pointing out that nanooptical technology is the future of daily imaging and medical imaging, and it also will play a positive role in the improvement of people’s health and ecological environment quality. As a trend, nanooptical technology is developing in the direction of energy-saving, portability, high efficiency, and low pollution, and in the upsurge of environmental protection in the world, nanooptical technology will surely achieve amazing development in the field of daily photography and medical imaging. Under the huge market demand and innovation power, nanophotonics technology will cover all emerging technologies that share the same research field with it and take advantage of each technology (terahertz, cell and molecular microscopy, and nanoscale probes) to develop an unprecedented new century in nanoscience. The future trends of research contain finding new imaging equipment with nanostructure, designing nanooptical products, and improving engineering techniques.
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23
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Kolbow JD, Lindquist NC, Ertsgaard CT, Yoo D, Oh SH. Nano-Optical Tweezers: Methods and Applications for Trapping Single Molecules and Nanoparticles. Chemphyschem 2021; 22:1409-1420. [PMID: 33797179 DOI: 10.1002/cphc.202100004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/31/2021] [Indexed: 11/10/2022]
Abstract
Optical tweezers were developed in 1970 by Arthur Ashkin as a tool for the manipulation of micron-sized particles. Ashkin's original design was then adapted for a variety of purposes, such as trapping and manipulation of biological materials[1] and the laser cooling of atoms.[2,3] More recent development has led to nano-optical tweezers, for trapping particles on the scale of only a few nanometers, and holographic tweezers, which allow for dynamic control of multiple traps in real-time. These alternatives to conventional optical tweezers have made it possible to trap single molecules and to perform a variety of studies on them. Presented here is a review of recent developments in nano-optical tweezers and their current and future applications.
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Affiliation(s)
- Joshua D Kolbow
- Department of Electrical and Computer Engineering, University of Minnesota Kenneth H. Keller Hall, 200, Union St SE, Minneapolis, MN 55455, USA
| | - Nathan C Lindquist
- Department of Physics and Engineering, Bethel University, 3900 Bethel Drive, St. Paul, MN 55112, USA
| | - Christopher T Ertsgaard
- Department of Electrical and Computer Engineering, University of Minnesota Kenneth H. Keller Hall, 200, Union St SE, Minneapolis, MN 55455, USA
| | - Daehan Yoo
- Department of Electrical and Computer Engineering, University of Minnesota Kenneth H. Keller Hall, 200, Union St SE, Minneapolis, MN 55455, USA
| | - Sang-Hyun Oh
- Department of Electrical and Computer Engineering, University of Minnesota Kenneth H. Keller Hall, 200, Union St SE, Minneapolis, MN 55455, USA
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24
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Nanophotonic biosensors harnessing van der Waals materials. Nat Commun 2021; 12:3824. [PMID: 34158483 PMCID: PMC8219843 DOI: 10.1038/s41467-021-23564-4] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 04/16/2021] [Indexed: 02/07/2023] Open
Abstract
Low-dimensional van der Waals (vdW) materials can harness tightly confined polaritonic waves to deliver unique advantages for nanophotonic biosensing. The reduced dimensionality of vdW materials, as in the case of two-dimensional graphene, can greatly enhance plasmonic field confinement, boosting sensitivity and efficiency compared to conventional nanophotonic devices that rely on surface plasmon resonance in metallic films. Furthermore, the reduction of dielectric screening in vdW materials enables electrostatic tunability of different polariton modes, including plasmons, excitons, and phonons. One-dimensional vdW materials, particularly single-walled carbon nanotubes, possess unique form factors with confined excitons to enable single-molecule detection as well as in vivo biosensing. We discuss basic sensing principles based on vdW materials, followed by technological challenges such as surface chemistry, integration, and toxicity. Finally, we highlight progress in harnessing vdW materials to demonstrate new sensing functionalities that are difficult to perform with conventional metal/dielectric sensors. This review presents an overview of scenarios where van der Waals (vdW) materials provide unique advantages for nanophotonic biosensing applications. The authors discuss basic sensing principles based on vdW materials, advantages of the reduced dimensionality as well as technological challenges.
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25
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Dessauge F, Schleder C, Perruchot MH, Rouger K. 3D in vitro models of skeletal muscle: myopshere, myobundle and bioprinted muscle construct. Vet Res 2021; 52:72. [PMID: 34011392 PMCID: PMC8136231 DOI: 10.1186/s13567-021-00942-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 04/15/2021] [Indexed: 12/25/2022] Open
Abstract
Typical two-dimensional (2D) culture models of skeletal muscle-derived cells cannot fully recapitulate the organization and function of living muscle tissues, restricting their usefulness in in-depth physiological studies. The development of functional 3D culture models offers a major opportunity to mimic the living tissues and to model muscle diseases. In this respect, this new type of in vitro model significantly increases our understanding of the involvement of the different cell types present in the formation of skeletal muscle and their interactions, as well as the modalities of response of a pathological muscle to new therapies. This second point could lead to the identification of effective treatments. Here, we report the significant progresses that have been made the last years to engineer muscle tissue-like structures, providing useful tools to investigate the behavior of resident cells. Specifically, we interest in the development of myopshere- and myobundle-based systems as well as the bioprinting constructs. The electrical/mechanical stimulation protocols and the co-culture systems developed to improve tissue maturation process and functionalities are presented. The formation of these biomimetic engineered muscle tissues represents a new platform to study skeletal muscle function and spatial organization in large number of physiological and pathological contexts.
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Yoo D, Barik A, de León-Pérez F, Mohr DA, Pelton M, Martín-Moreno L, Oh SH. Plasmonic Split-Trench Resonator for Trapping and Sensing. ACS NANO 2021; 15:6669-6677. [PMID: 33789040 DOI: 10.1021/acsnano.0c10014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
On-chip integration of plasmonics and electronics can benefit a broad range of applications in biosensing, signal processing, and optoelectronics. A key requirement is a chip-scale manufacturing method. Here, we demonstrate a split-trench resonator platform that combines a high-quality-factor resonant plasmonic biosensor with radio frequency (RF) nanogap tweezers. The split-trench resonator can simultaneously serve as a dielectrophoretic trap and a nanoplasmonic sensor. Trapping is accomplished by applying an RF electrical bias across a 10 nm gap, thereby either attracting or repelling analytes. Trapped analytes are detected in a label-free manner using refractive-index sensing, enabled by interference between surface-plasmon standing waves in the trench and light transmitted through the gap. This active sample concentration mechanism enables detection of nanoparticles and proteins at a concentration as low as 10 pM. We can manufacture centimeter-long split-trench cavity resonators with high throughput via photolithography and atomic layer deposition, toward practical applications in biosensing, spectroscopy, and optoelectronics.
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Affiliation(s)
- Daehan Yoo
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Avijit Barik
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Fernando de León-Pérez
- Centro Universitario de la Defensa de Zaragoza, E-50009 Zaragoza, Spain
- Instituto de Nanociencia y Materiales de Aragón (INMA) and Departamento de Física de la Materia Condensada, CSIC-Universidad de Zaragoza, E-50009 Zaragoza, Spain
| | - Daniel A Mohr
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Matthew Pelton
- Department of Physics, University of Maryland, Baltimore County, Baltimore, Maryland 21250, United States
| | - Luis Martín-Moreno
- Instituto de Nanociencia y Materiales de Aragón (INMA) and Departamento de Física de la Materia Condensada, CSIC-Universidad de Zaragoza, E-50009 Zaragoza, Spain
| | - Sang-Hyun Oh
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
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Methods for tuning plasmonic and photonic optical resonances in high surface area porous electrodes. Sci Rep 2021; 11:7656. [PMID: 33828131 PMCID: PMC8027385 DOI: 10.1038/s41598-021-86813-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 03/08/2021] [Indexed: 11/08/2022] Open
Abstract
Surface plasmons have found a wide range of applications in plasmonic and nanophotonic devices. The combination of plasmonics with three-dimensional photonic crystals has enormous potential for the efficient localization of light in high surface area photoelectrodes. However, the metals traditionally used for plasmonics are difficult to form into three-dimensional periodic structures and have limited optical penetration depth at operational frequencies, which limits their use in nanofabricated photonic crystal devices. The recent decade has seen an expansion of the plasmonic material portfolio into conducting ceramics, driven by their potential for improved stability, and their conformal growth via atomic layer deposition has been established. In this work, we have created three-dimensional photonic crystals with an ultrathin plasmonic titanium nitride coating that preserves photonic activity. Plasmonic titanium nitride enhances optical fields within the photonic electrode while maintaining sufficient light penetration. Additionally, we show that post-growth annealing can tune the plasmonic resonance of titanium nitride to overlap with the photonic resonance, potentially enabling coupled-phenomena applications for these three-dimensional nanophotonic systems. Through characterization of the tuning knobs of bead size, deposition temperature and cycle count, and annealing conditions, we can create an electrically- and plasmonically-active photonic crystal as-desired for a particular application of choice.
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Nicholls DP, Oh SH. Launching graphene surface plasmon waves with vanishingly small periodic grating structures. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. A, OPTICS, IMAGE SCIENCE, AND VISION 2021; 38:556-563. [PMID: 33798185 DOI: 10.1364/josaa.404896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 03/02/2021] [Indexed: 06/12/2023]
Abstract
Graphene is now a crucial component of many device designs in electronics and optics. Just like the noble metals, this single layer of carbon atoms in a honeycomb lattice can support surface plasmons, which are central to several sensing technologies in the mid-infrared regime. As with classical metal plasmons, periodic corrugations in the graphene sheet itself can be used to launch these surface waves; however, as graphene plasmons are tightly confined, the role of unwanted surface roughness, even at a nanometer scale, cannot be ignored. In this work, we revisit our previous numerical experiments on metal plasmons launched by vanishingly small grating structures, with the addition of graphene to the structure. These simulations are conducted with a recently devised, rapid, and robust high-order spectral scheme of the authors, and with it we carefully demonstrate how the plasmonic response of a perfectly flat sheet of graphene can be significantly altered with even a tiny corrugation (on the order of merely 5 nm). With these results, we demonstrate the primary importance of fabrication techniques that produce interfaces whose deviations from flat are on the order of angstroms.
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Namgung S, Koester SJ, Oh SH. Ultraflat Sub-10 Nanometer Gap Electrodes for Two-Dimensional Optoelectronic Devices. ACS NANO 2021; 15:5276-5283. [PMID: 33625831 DOI: 10.1021/acsnano.0c10759] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Two-dimensional (2D) materials are promising candidates for building ultrashort-channel devices because their thickness can be reduced down to a single atomic layer. Here, we demonstrate an ultraflat nanogap platform based on atomic layer deposition (ALD) and utilize the structure to fabricate 2D material-based optical and electronic devices. In our method, ultraflat metal surfaces, template-stripped from a Si wafer mold, are separated by an Al2O3 ALD layer down to a gap width of 10 nm. Surfaces of both electrodes are vertically aligned without a height difference, and each electrode is ultraflat with a measured root-mean-square roughness as low as 0.315 nm, smaller than the thickness of monolayer graphene. Simply by placing 2D material flakes on top of the platform, short-channel field-effect transistors based on black phosphorus and MoS2 are fabricated, exhibiting their typical transistor characteristics. Furthermore, we use the same platform to demonstrate photodetectors with a nanoscale photosensitive channel, exhibiting higher photosensitivity compared to microscale gap channels. Our wafer-scale atomic layer lithography method can benefit a diverse range of 2D optical and electronic applications.
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Affiliation(s)
- Seon Namgung
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
- Department of Physics, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Steven J Koester
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Sang-Hyun Oh
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
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Menabde SG, Lee IH, Lee S, Ha H, Heiden JT, Yoo D, Kim TT, Low T, Lee YH, Oh SH, Jang MS. Real-space imaging of acoustic plasmons in large-area graphene grown by chemical vapor deposition. Nat Commun 2021; 12:938. [PMID: 33608541 PMCID: PMC7895983 DOI: 10.1038/s41467-021-21193-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 01/15/2021] [Indexed: 11/25/2022] Open
Abstract
An acoustic plasmon mode in a graphene-dielectric-metal structure has recently been spotlighted as a superior platform for strong light-matter interaction. It originates from the coupling of graphene plasmon with its mirror image and exhibits the largest field confinement in the limit of a sub-nm-thick dielectric. Although recently detected in the far-field regime, optical near-fields of this mode are yet to be observed and characterized. Here, we demonstrate a direct optical probing of the plasmonic fields reflected by the edges of graphene via near-field scattering microscope, revealing a relatively small propagation loss of the mid-infrared acoustic plasmons in our devices that allows for their real-space mapping at ambient conditions even with unprotected, large-area graphene grown by chemical vapor deposition. We show an acoustic plasmon mode that is twice as confined and has 1.4 times higher figure of merit in terms of the normalized propagation length compared to the graphene surface plasmon under similar conditions. We also investigate the behavior of the acoustic graphene plasmons in a periodic array of gold nanoribbons. Our results highlight the promise of acoustic plasmons for graphene-based optoelectronics and sensing applications.
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Affiliation(s)
- Sergey G Menabde
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - In-Ho Lee
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, USA
- Center for Opto-Electronic Materials and Devices, Korea Institute of Science and Technology, Seoul, Korea
| | - Sanghyub Lee
- Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Suwon, Korea
- Department of Energy Science, Sungkyunkwan University, Suwon, Korea
| | - Heonhak Ha
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Jacob T Heiden
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Daehan Yoo
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, USA
| | - Teun-Teun Kim
- Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Suwon, Korea
- Department of Physics, University of Ulsan, Ulsan, Korea
| | - Tony Low
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, USA
| | - Young Hee Lee
- Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Suwon, Korea.
- Department of Energy Science, Sungkyunkwan University, Suwon, Korea.
| | - Sang-Hyun Oh
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, USA.
| | - Min Seok Jang
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea.
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Oh H, Hwang H, Song H. Structural complexity induced by {110} blocking of cysteine in electrochemical copper deposition on silver nanocubes. NANOSCALE 2021; 13:1777-1783. [PMID: 33433556 DOI: 10.1039/d0nr07470e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Morphology evolution into intricate structures at the nanoscale is hard to understand, but we can get critical information from the combination of ex situ and in situ spectroelectrochemical techniques. In this study, we investigated the structural complexity generated during electrochemical Cu deposition on individual Ag nanocubes, which was driven by surface regulating cysteine molecules. During the deposition process, selective nucleation occurred on the Ag nanocubes by underpotential deposition, and then sequential structural evolution to a windmill morphology was observed. By adjusting the cysteine coverage, diverse structures were yielded, including face-overgrown, four-leaf clover, and octapod-like structures. Structural analysis along the crystallographic directions demonstrated that cysteine molecules exclusively blocked the growth along 110 and relatively promoted the growth along 100 and 111, respectively. Interestingly, all morphologies maintained a highly symmetric nature from the pristine cube, despite being diverse and sophisticated. These findings would be essential to design complex morphologies and achieve desirable optical and catalytic properties.
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Affiliation(s)
- Hyuncheol Oh
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.
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32
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Zhang T, Hu R, Zhang S, Liu Z, Wang J, Xu J, Chen K, Yu L. Superfast Growth Dynamics of High-Quality Silicon Nanowires on Polymer Films via Self-Selected Laser-Droplet-Heating. NANO LETTERS 2021; 21:569-576. [PMID: 33350839 DOI: 10.1021/acs.nanolett.0c04058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Growing high quality silicon nanowires (SiNWs) at elevated temperature on cooler polymer films seems to be contradictive but highly desirable for building high performance flexible and wearable electronics. In this work, we demonstrate a superfast (vnw > 3.5 μm·s-1) growth of high quality SiNWs on polymer/glass substrates, powered by self-selected laser at 808 nm heating of indium catalyst droplets that absorb amorphous Si layer to produce SiNWs. Because of the tiny heat capacity of the nanodroplets, the SiNW growth can be quickly heated up and frozen via rapid laser ON/OFF switching, enabling a deterministic diameter modulation in the ultralong SiNWs. Finally, prototype field effect transistors are also fabricated upon the laser-droplet-heating grown SiNWs with a high Ion/Ioff ratio of >104 and reasonable subthreshold swing of 386 mV·dec-1, opening a generic new route to integrate high-quality NW channels directly upon large area and lightweight polymer substrates for developing high-performance flexible electronics.
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Affiliation(s)
- Ting Zhang
- National Laboratory of Solid State Microstructures/School of Electronics Science and Engineering, Nanjing University, 210093 Nanjing, China
| | - Ruijin Hu
- National Laboratory of Solid State Microstructures/School of Electronics Science and Engineering, Nanjing University, 210093 Nanjing, China
| | - Shaobo Zhang
- National Laboratory of Solid State Microstructures/School of Electronics Science and Engineering, Nanjing University, 210093 Nanjing, China
| | - Zongguang Liu
- National Laboratory of Solid State Microstructures/School of Electronics Science and Engineering, Nanjing University, 210093 Nanjing, China
| | - Junzhuan Wang
- National Laboratory of Solid State Microstructures/School of Electronics Science and Engineering, Nanjing University, 210093 Nanjing, China
| | - Jun Xu
- National Laboratory of Solid State Microstructures/School of Electronics Science and Engineering, Nanjing University, 210093 Nanjing, China
| | - Kunji Chen
- National Laboratory of Solid State Microstructures/School of Electronics Science and Engineering, Nanjing University, 210093 Nanjing, China
| | - Linwei Yu
- National Laboratory of Solid State Microstructures/School of Electronics Science and Engineering, Nanjing University, 210093 Nanjing, China
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Artemyev YA, Savinov V, Katiyi A, Shalin AS, Karabchevsky A. Non-isolated sources of electromagnetic radiation by multipole decomposition for photonic quantum technologies on a chip with nanoscale apertures. NANOSCALE ADVANCES 2021; 3:190-197. [PMID: 36131865 PMCID: PMC9417329 DOI: 10.1039/d0na00580k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 10/08/2020] [Indexed: 06/15/2023]
Abstract
The creation of single photon sources on a chip is a mid-term milestone on the road to chip-scale quantum computing. An in-depth understanding of the extended multipole decomposition of non-isolated sources of electromagnetic radiation is not only relevant for a microscopic description of fundamental phenomena, such as light propagation in a medium, but also for emerging applications such as single-photon sources. To design single photon emitters on a chip, we consider a ridge dielectric waveguide perturbed with a cylindrical inclusion. For this, we expanded classical multipole decomposition that allows simplifying and interpreting complex optical interactions in an intuitive manner to make it suitable for analyzing light-matter interactions with non-isolated objects that are parts of a larger network, e.g. individual components such as a single photon source of an optical chip. It is shown that our formalism can be used to design single photon sources on a chip.
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Affiliation(s)
- Yuriy A Artemyev
- School of Electrical and Computer Engineering, Ben-Gurion University Beer-Sheva Israel
- Department of Nano-Photonics and Metamaterials, ITMO University St. Petersburg Russia
| | - Vassili Savinov
- Optoelectronics Research Centre, Centre for Photonic Metamaterials, University of Southampton Southampton UK
| | - Aviad Katiyi
- School of Electrical and Computer Engineering, Ben-Gurion University Beer-Sheva Israel
| | - Alexander S Shalin
- Department of Nano-Photonics and Metamaterials, ITMO University St. Petersburg Russia
| | - Alina Karabchevsky
- School of Electrical and Computer Engineering, Ben-Gurion University Beer-Sheva Israel
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34
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Yao Y, Zhou J, Liu Z, Liu X, Fu G, Liu G. Refractory materials and plasmonics based perfect absorbers. NANOTECHNOLOGY 2021; 32:132002. [PMID: 33302265 DOI: 10.1088/1361-6528/abd275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 12/10/2020] [Indexed: 06/12/2023]
Abstract
In the past decades, metamaterial light absorbers have attracted tremendous attention due to their impressive absorption efficiency and significant potential for multiple kinds of applications. However, the conventional noble metals based metamaterial and nanomaterial absorbers always suffer from the structural damage by the local high temperature resulting from the strong plasmonic photo-thermal effects. To address this challenge, intensive research has been conducted to develop the absorbers which can realize efficient light absorption and simultaneously keep the structural stability under high temperatures. In this review, we present detail discussion on the refractory materials which can provide robust thermal stability and high performance for light absorption. Moreover, promising theoretical designs and experimental demonstrations that possess excellent features are also reviewed, including broadband strong light absorption, high temperature durability, and even the easy-to-fabricate configuration. Some applications challenges and prospects of refractory materials based plasmonic perfect absorbers are also introduced and discussed.
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Affiliation(s)
- Yu Yao
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, Jiangxi, People's Republic of China
| | - Jin Zhou
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, Jiangxi, People's Republic of China
| | - Zhengqi Liu
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, Jiangxi, People's Republic of China
| | - Xiaoshan Liu
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, Jiangxi, People's Republic of China
| | - Guolan Fu
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, Jiangxi, People's Republic of China
| | - Guiqiang Liu
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Jiangxi Key Laboratory of Photoelectronics and Telecommunication, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, Jiangxi, People's Republic of China
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35
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Arjmandi-Tash H, van Deursen PM, Bellunato A, de Sere C, Overchenko Z, Gupta KBS, Schneider GF. Supramolecular Multilayered Templates for Fabricating Nanometer-Precise Spacings: Implications for the Next-Generation of Devices Integrating Nanogap/Nanochannel Components. ACS APPLIED NANO MATERIALS 2020; 3:10586-10590. [PMID: 33283172 PMCID: PMC7706106 DOI: 10.1021/acsanm.0c01578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 09/03/2020] [Indexed: 06/12/2023]
Abstract
Molecular transistors, electromagnetic waveguides, plasmonic devices, and novel generations of nanofluidic channels comprise precisely separated gaps of nanometric and subnanometric spacing. Nonetheless, fabricating a nanogap/nanochannel is a technological challenge, currently tackled by several approaches such as breakdown electromigration and lithography. The aforementioned techniques, though, are limited, respectively, in terms of gap stability and ultimate resolution. Here, nanogaps/nanochannels are templated via the microtomy of metallic thin films embedded in a polymer matrix and precisely separated by a nanometric, sacrificial layer of polyelectrolytes grown via the layer-by-layer (LbL) approach. The versatility of the LbL technique, both in terms of the number of layers and composition of polyelectrolytes, allows to finely tune the spacing across the gap; the LbL template can further be removed by plasma etching. Our findings pave the path toward the realization of molecularly defined functional spacings at the nanometer-scale for the modular implementation of devices integrating nanogap/nanochannel components.
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36
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Zhang C, Li J, Belianinov A, Ma Z, Renshaw CK, Gelfand RM. Nanoaperture fabrication in ultra-smooth single-grain gold films with helium ion beam lithography. NANOTECHNOLOGY 2020; 31:465302. [PMID: 32857734 DOI: 10.1088/1361-6528/abae99] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We demonstrate a simple three-step gold thin-film sample preparation process to enhance the morphology and lithographic precision using helium ion based direct-writing. The procedure includes metal deposition, heat treatment and template stripping, which produce smooth monocrystalline gold grains with sizes up to 500 nm and an average surface roughness of 0.267 nm. By using a helium ion microscope, we can fabricate structures with feature sizes less than 20 nm in a 100 nm thick gold film with high-quality sidewalls. We demonstrate the efficacy of this technique by producing high-quality double nanohole (DNH) nanoapertures for single nanoparticle trapping in a single grain of 100 nm thick gold. This procedure can be applied to a wide range of antenna geometries and features that need to be fabricated producing optical and or electronic devices.
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Affiliation(s)
- Chenyi Zhang
- CREOL, University of Central Florida, Orlando, FL 32816, United States of America
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37
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Zhang Y, Zhang Z, Wang Y, Su Y, Chen M. 3D myotube guidance on hierarchically organized anisotropic and conductive fibers for skeletal muscle tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111070. [DOI: 10.1016/j.msec.2020.111070] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/01/2020] [Accepted: 05/07/2020] [Indexed: 12/21/2022]
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38
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Wang YR, Olaizola SM, Han IS, Jin CY, Hopkinson M. Direct patterning of periodic semiconductor nanostructures using single-pulse nanosecond laser interference. OPTICS EXPRESS 2020; 28:32529-32539. [PMID: 33114936 DOI: 10.1364/oe.397709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
We demonstrate an effective method for fabricating large area periodic two-dimensional semiconductor nanostructures by means of single-pulse laser interference. Utilizing a pulsed nanosecond laser with a wavelength of 355 nm, precisely ordered square arrays of nanoholes with a periodicity of 300 nm were successfully obtained on UV photoresist and also directly via a resist-free process onto semiconductor wafers. We show improved uniformity using a beam-shaping system consisting of cylindrical lenses with which we can demonstrate highly regular arrays over hundreds of square micrometers. We propose that our novel observation of direct pattern transfer to GaAs is due to local congruent evaporation and subsequent droplet etching of the surface. The results show that single-pulse interference can provide a rapid and highly efficient route for the realization of wide-area periodic nanostructures on semiconductors and potentially on other engineering materials.
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39
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Jia M, Zhang Y, Li Z, Crouch E, Doble S, Avenoso J, Yan H, Ni C, Gundlach L. A versatile strategy for controlled assembly of plasmonic metal/semiconductor hemispherical nano-heterostructure arrays. NANOSCALE 2020; 12:17530-17537. [PMID: 32812597 DOI: 10.1039/d0nr03551c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Recent advances in manipulating plasmonic properties of metal/semiconductor heterostructures have opened up new avenues for basic research and applications. Herein, we present a versatile strategy for the assembly of arrays of plasmonic metal/semiconductor hemispherical nano-heterostructures (MSHNs) with control over spacing and size of the metal/semiconductor heterostructure array, which can facilitate a wide range of scientific studies and applications. The strategy combines nanosphere lithography for generating the metal core array with solution-based chemical methods for the semiconductor shell that are widely available and kinetically controllable. Periodic arrays of Au/Cu2O and Ag/Cu2O heterostructures are synthesized to demonstrate the approach and highlight the versatility and importance of the tunability of plasmonic properties. The morphology, structure, optical properties, and elemental compositions of the heterostructures were analyzed. This strategy can be important for understanding and manipulating fundamental nanoscale solid-state physical and chemical properties, as well as assembling heterostructures with desirable structure and functionality for applications.
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Affiliation(s)
- Meng Jia
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware, USA.
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40
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Manuel AP, Barya P, Riddell S, Zeng S, Alam KM, Shankar K. Plasmonic photocatalysis and SERS sensing using ellipsometrically modeled Ag nanoisland substrates. NANOTECHNOLOGY 2020; 31:365301. [PMID: 32191930 DOI: 10.1088/1361-6528/ab814c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Silver nanoislands are key platforms for plasmonic photocatalysis, SERS sensing and optical metamaterials due to their localized surface plasmon resonances. The low intrinsic loss in Ag enables high local electromagnetic field enhancements. Solution-based fabrication techniques, while cheap, result in highly non-reproducible plasmonic substrates with wide sample-to-sample variability in geometry, optical resonances and Q-factors. Herein, we present a non-lithographic method of forming silver nanoislands based on sputter deposition of Ag films followed by elevated temperature annealing to induce spontaneous dewetting. The resulting plasmonic substrates show reproducible, well-defined LSPR resonances with high ensemble Q-factors whose optical properties could be modeled using spectroscopic ellipsometry to yield n and k values across the visible range. UV-Vis-NIR, and XRD analyses define the optical and crystallographic characteristics of the Ag nanoisland samples. FESEM was utilized to discern the geometry and architecture of the Ag nanoisland as well as their uniformity and monodispersity. Our vacuum deposited Ag nanoislands demonstrated excellent photocatalytic activity for the transformation of 4-nitrobenzenethiol (4-NBT) and 4-aminothiophenol (PATP) into p,p'-dimercaptoazobenzene (DMAB).
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Affiliation(s)
- Ajay P Manuel
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton T6G 1H9, Canada
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41
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Schlykow V, Manganelli CL, Römer F, Clausen C, Augel L, Schulze J, Katzer J, Schubert MA, Witzigmann B, Schroeder T, Capellini G, Fischer IA. Ge(Sn) nano-island/Si heterostructure photodetectors with plasmonic antennas. NANOTECHNOLOGY 2020; 31:345203. [PMID: 32392549 DOI: 10.1088/1361-6528/ab91ef] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We report on photodetection in deep subwavelength Ge(Sn) nano-islands on Si nano-pillar substrates, in which self-aligned nano-antennas in the Al contact metal are used to enhance light absorption by means of local surface plasmon resonances. The impact of parameters such as substrate doping and device geometry on the measured responsivities are investigated and our experimental results are supported by simulations of the three-dimensional distribution of the electromagnetic fields. Comparatively high optical responsivities of about 0.1 A W-1 are observed as a consequence of the excitation of localized surface plasmons, making our nano-island photodetectors interesting for applications in which size reduction is essential.
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Affiliation(s)
- Viktoria Schlykow
- Peter Grünberg Institute (PGI 10), Forschungszentrum Jülich, Wilhelm-Johnen-Straße, Jülich 52425, Germany. IHP - Leibniz-Institut für innovative Mikroelektronik, Im Technologiepark 25, Frankfurt (Oder) D-15236, Germany
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42
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Ferhan AR, Yoon BK, Jeon WY, Cho NJ. Biologically interfaced nanoplasmonic sensors. NANOSCALE ADVANCES 2020; 2:3103-3114. [PMID: 36134263 PMCID: PMC9418064 DOI: 10.1039/d0na00279h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/26/2020] [Indexed: 05/30/2023]
Abstract
Understanding biointerfacial processes is crucial in various fields across fundamental and applied biology, but performing quantitative studies via conventional characterization techniques remains challenging due to instrumentation as well as analytical complexities and limitations. In order to accelerate translational research and address current challenges in healthcare and medicine, there is an outstanding need to develop surface-sensitive technologies with advanced measurement capabilities. Along this line, nanoplasmonic sensing has emerged as a powerful tool to quantitatively study biointerfacial processes owing to its high spatial resolution at the nanoscale. Consequently, the development of robust biological interfacing strategies becomes imperative to maximize its characterization potential. This review will highlight and discuss the critical role of biological interfacing within the context of constructing nanoplasmonic sensing platforms for biointerfacial science applications. Apart from paving the way for the development of highly surface-sensitive characterization tools that will spur fundamental biological interaction studies and improve the overall understanding of biological processes, the basic principles behind biointerfacing strategies presented in this review are also applicable to other fields that involve an interface between an inorganic material and a biological system.
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Affiliation(s)
- Abdul Rahim Ferhan
- School of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue 639798 Singapore
| | - Bo Kyeong Yoon
- School of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue 639798 Singapore
- School of Chemical Engineering, Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Won-Yong Jeon
- School of Chemical Engineering, Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Nam-Joon Cho
- School of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue 639798 Singapore
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43
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Jiang S, Li J, Li J, Zhang G, Liu H, Yi F. Genetic optimization of plasmonic metamaterial absorber towards dual-band infrared imaging polarimetry. OPTICS EXPRESS 2020; 28:22617-22629. [PMID: 32752519 DOI: 10.1364/oe.397868] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
Mid-infrared imaging detectors are essential tools for many applications because they can visualize the objects in the dark via thermal radiation. However, these detectors have to pair with separate spectral and polarization filters to select the target spectral bands and polarization states, resulting in complicated and bulky imaging systems. One way to mitigate the need for separate spectral filters and polarizers is to use metamaterial absorbers, which are arrays of optical resonators with sub-wavelength dimensions and spacing, to tailor the responses of the detector pixels. Here we report an intelligent program based on the genetic algorithm that automates the design and optimization of a metal-insulator-metal based metamaterial absorber with multi-sized nanostrip antennas as the top layer. The program starts from a randomly generated pattern of the top antenna layer, and it iteratively approaches the optimized designs of two polarization selective MIM absorbers with wideband high absorption in the specified 3-5 (MWIR) band and 8-12 µm (LWIR) band. The measured absorption spectra of the two optimized designs agree well with the simulated results. The influences of the incident angle of light, the finite size of detector pixels, and the air gap between the neighboring pixels on the spectral absorption are numerically evaluated.
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44
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Image polaritons in boron nitride for extreme polariton confinement with low losses. Nat Commun 2020; 11:3649. [PMID: 32686672 PMCID: PMC7371862 DOI: 10.1038/s41467-020-17424-w] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 06/22/2020] [Indexed: 11/28/2022] Open
Abstract
Polaritons in two-dimensional materials provide extreme light confinement that is difficult to achieve with metal plasmonics. However, such tight confinement inevitably increases optical losses through various damping channels. Here we demonstrate that hyperbolic phonon polaritons in hexagonal boron nitride can overcome this fundamental trade-off. Among two observed polariton modes, featuring a symmetric and antisymmetric charge distribution, the latter exhibits lower optical losses and tighter polariton confinement. Far-field excitation and detection of this high-momenta mode become possible with our resonator design that can boost the coupling efficiency via virtual polariton modes with image charges that we dub ‘image polaritons’. Using these image polaritons, we experimentally observe a record-high effective index of up to 132 and quality factors as high as 501. Further, our phenomenological theory suggests an important role of hyperbolic surface scattering in the damping process of hyperbolic phonon polaritons. The tight confinement of polaritons in 2D materials leads to increased optical losses. Here, the authors demonstrate image phonon polariton modes in hexagonal boron nitride with an antisymmetric charge distribution that feature quality factors of up to 501 and an effective index of 132.
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45
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Da Browski M, Dai Y, Petek H. Ultrafast Photoemission Electron Microscopy: Imaging Plasmons in Space and Time. Chem Rev 2020; 120:6247-6287. [PMID: 32530607 DOI: 10.1021/acs.chemrev.0c00146] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Plasmonics is a rapidly growing field spanning research and applications across chemistry, physics, optics, energy harvesting, and medicine. Ultrafast photoemission electron microscopy (PEEM) has demonstrated unprecedented power in the characterization of surface plasmons and other electronic excitations, as it uniquely combines the requisite spatial and temporal resolution, making it ideally suited for 3D space and time coherent imaging of the dynamical plasmonic phenomena on the nanofemto scale. The ability to visualize plasmonic fields evolving at the local speed of light on subwavelength scale with optical phase resolution illuminates old phenomena and opens new directions for growth of plasmonics research. In this review, we guide the reader thorough experimental description of PEEM as a characterization tool for both surface plasmon polaritons and localized plasmons and summarize the exciting progress it has opened by the ultrafast imaging of plasmonic phenomena on the nanofemto scale.
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Affiliation(s)
- Maciej Da Browski
- Department of Physics and Astronomy and Pittsburgh Quantum Institute, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States.,Department of Physics and Astronomy, University of Exeter, Stocker Road, Exeter, Devon EX4 4QL, U.K
| | - Yanan Dai
- Department of Physics and Astronomy and Pittsburgh Quantum Institute, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Hrvoje Petek
- Department of Physics and Astronomy and Pittsburgh Quantum Institute, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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46
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Hernandez Oendra AC, De Leo E, Koepfli SM, Winkler JM, Rossinelli AA, Riedinger A, Norris DJ, Prins F. Template Stripping of Perovskite Thin Films for Dry Interfacing and Surface Structuring. ACS APPLIED MATERIALS & INTERFACES 2020; 12:26601-26606. [PMID: 32392031 DOI: 10.1021/acsami.0c04006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Combining excellent optoelectronic properties with the benefits of solution processability, metal-halide perovskites are promising materials for photovoltaic and light-emitting technologies. To facilitate the integration of perovskite thin films into optoelectronic devices, a need exists for simple and efficient fabrication methods. Here, we present a template-stripping technique to produce ultraflat and flexible perovskite thin films. We apply a one-step spin-coating procedure to produce high-quality CH3NH3PbBr3 perovskite thin films on top of ultraflat silicon templates. These films can be mechanically cleaved from the template using a polymer adhesive to reveal the ultraflat perovskite surfaces. We demonstrate how the flatness and flexibility of the template-stripped films enable new processing strategies based on dry interfacing, by interfacing them with plasmonic hole arrays. Moreover, we show that by using prepatterned silicon templates, structured perovskite surfaces can be produced with feature sizes down to a micrometer.
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Affiliation(s)
- Alexander C Hernandez Oendra
- Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Rämistrasse 101, Zürich 8092, Switzerland
| | - Eva De Leo
- Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Rämistrasse 101, Zürich 8092, Switzerland
| | - Stefan M Koepfli
- Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Rämistrasse 101, Zürich 8092, Switzerland
| | - Jan M Winkler
- Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Rämistrasse 101, Zürich 8092, Switzerland
| | - Aurelio A Rossinelli
- Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Rämistrasse 101, Zürich 8092, Switzerland
| | - Andreas Riedinger
- Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Rämistrasse 101, Zürich 8092, Switzerland
| | - David J Norris
- Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Rämistrasse 101, Zürich 8092, Switzerland
| | - Ferry Prins
- Optical Materials Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Rämistrasse 101, Zürich 8092, Switzerland
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Abu-Safe HH, Al-Esseili R, El-Nasser H, Sarollahi M, Refaei M, Zamani-Alavijeh M, Naseem H, Ware ME. Au-Ag-Al Nano-Alloy Thin Films as an Advanced Material for Photonic Applications: XPS Analysis, Linear and Nonlinear Optical Properties Under CW Regime. CRYSTAL RESEARCH AND TECHNOLOGY 2020. [DOI: 10.1002/crat.201900228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Husam H. Abu-Safe
- School of Basic Sciences and Humanities; German Jordanian University; Amman 11180 Jordan
| | - Razan Al-Esseili
- School of Basic Sciences and Humanities; German Jordanian University; Amman 11180 Jordan
| | - Husam El-Nasser
- Physics Department; Al al-Bayt University; Mafraq 25113 Jordan
| | - Mirsaeid Sarollahi
- Department of Electrical Engineering; University of Arkansas; Fayetteville AR 72701 USA
| | - Malak Refaei
- Institute for Nanoscience and Engineering; University of Arkansas; Fayetteville AR 72701 USA
| | | | - Hameed Naseem
- Department of Electrical Engineering; University of Arkansas; Fayetteville AR 72701 USA
| | - Morgan E. Ware
- Department of Electrical Engineering; University of Arkansas; Fayetteville AR 72701 USA
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48
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Khan MA, Zhu Y, Yao Y, Zhang P, Agrawal A, Reece PJ. Impact of metal crystallinity-related morphologies on the sensing performance of plasmonic nanohole arrays. NANOSCALE 2020; 12:7577-7585. [PMID: 32073105 DOI: 10.1039/d0nr00619j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Plasmonic nanohole arrays for biosensing applications have attracted tremendous attention because of their flexibility in optical signature design, high multiplexing capabilities, simple optical alignment setup, and high sensitivity. The quality of the metal film, including metal crystallinity and surface roughness, plays an important role in determining the sensing performance because the interaction between free electrons in the metal and incident light is strongly influenced by the metal surface morphology. We systematically investigated the influence of metal crystallinity-related morphologies on the sensing performance of plasmonic nanohole arrays after different metal deposition processes. We utilised several non-destructive nanoscale surface characterisation techniques to perform a quantitative and comparative analysis of the Au quality of the fabricated sensor. We found empirically how the surface roughness and grain sizes influence the permittivity of the Au film and thus the sensitivity of the fabricated sensor. Finally we confirmed that the deposition conditions that provide both low surface roughness and large metal grain sizes improve the sensitivity of the plasmonic sensor.
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Affiliation(s)
- Mansoor Ali Khan
- St George and Sutherland Clinical School, UNSW Sydney, NSW 2052, Australia.
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49
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Vidal-Codina F, Martín-Moreno L, Ciracì C, Yoo D, Nguyen NC, Oh SH, Peraire J. Terahertz and infrared nonlocality and field saturation in extreme-scale nanoslits. OPTICS EXPRESS 2020; 28:8701-8715. [PMID: 32225489 DOI: 10.1364/oe.386405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 02/09/2020] [Indexed: 06/10/2023]
Abstract
With advances in nanofabrication techniques, extreme-scale nanophotonic devices with critical gap dimensions of just 1-2 nm have been realized. The plasmonic response in these extreme-scale gaps is significantly affected by nonlocal electrodynamics, quenching field enhancement and blue-shifting the resonance with respect to a purely local behavior. The extreme mismatch in lengthscales, ranging from millimeter-long wavelengths to atomic-scale charge distributions, poses a daunting computational challenge. In this paper, we perform computations of a single nanoslit using the hybridizable discontinuous Galerkin method to solve Maxwell's equations augmented with the hydrodynamic model for the conduction-band electrons in noble metals. This method enables the efficient simulation of the slit while accounting for the nonlocal interactions between electrons and the incident light. We study the impact of gap width, film thickness and electron motion model on the plasmon resonances of the slit for two different frequency regimes: (1) terahertz frequencies, which lead to 1000-fold field amplitude enhancements that saturate as the gap shrinks; and (2) the near- and mid-infrared regime, where we show that narrow gaps and thick films cluster Fabry-Pérot (FP) resonances towards lower frequencies, derive a dispersion relation for the first FP resonance, in addition to observing that nonlocality boosts transmittance and reduces enhancement.
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50
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Chou Chau YF, Chou Chao CT, Huang HJ, Kooh MRR, Kumara NTRN, Lim CM, Chiang HP. Perfect Dual-Band Absorber Based on Plasmonic Effect with the Cross-Hair/Nanorod Combination. NANOMATERIALS 2020; 10:nano10030493. [PMID: 32182902 PMCID: PMC7153243 DOI: 10.3390/nano10030493] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 03/02/2020] [Accepted: 03/06/2020] [Indexed: 01/30/2023]
Abstract
Plasmonic effect using a cross-hair can convey strongly localized surface plasmon modes among the separated composite nanostructures. Compared to its counterpart without the cross-hair, this characteristic has the remarkable merit of enhancing absorptance at resonance and can make the structure carry out a dual-band plasmonic perfect absorber (PPA). In this paper, we propose and design a novel dual-band PPA with a gathering of four metal-shell nanorods using a cross-hair operating at visible and near-infrared regions. Two absorptance peaks at 1050 nm and 750 nm with maximal absorptance of 99.59% and 99.89% for modes 1 and 2, respectively, are detected. High sensitivity of 1200 nm refractive unit (1/RIU), figure of merit of 26.67 and Q factor of 23.33 are acquired, which are very remarkable compared with the other PPAs. In addition, the absorptance in mode 1 is about nine times compared to its counterpart without the cross-hair. The proposed structure gives a novel inspiration for the design of a tunable dual-band PPA, which can be exploited for plasmonic sensor and other nanophotonic devices.
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Affiliation(s)
- Yuan-Fong Chou Chau
- Centre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong BE1410, Brunei; (M.R.R.K.); (N.T.R.N.K.); (C.M.L.)
- Correspondence: (Y.-F.C.C.); (H.-P.C.); Tel.: +673-7150039 (Y.-F.C.C.); +886-2-24622192 (ext. 6702) (H.-P.C.)
| | - Chung-Ting Chou Chao
- Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung 20224, Taiwan;
| | - Hung Ji Huang
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu 300, Taiwan;
| | - Muhammad Raziq Rahimi Kooh
- Centre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong BE1410, Brunei; (M.R.R.K.); (N.T.R.N.K.); (C.M.L.)
| | - N. T. R. N. Kumara
- Centre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong BE1410, Brunei; (M.R.R.K.); (N.T.R.N.K.); (C.M.L.)
| | - Chee Ming Lim
- Centre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong BE1410, Brunei; (M.R.R.K.); (N.T.R.N.K.); (C.M.L.)
| | - Hai-Pang Chiang
- Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung 20224, Taiwan;
- Institute of Physics, Academia Sinica, Taipei 115, Taiwan
- Correspondence: (Y.-F.C.C.); (H.-P.C.); Tel.: +673-7150039 (Y.-F.C.C.); +886-2-24622192 (ext. 6702) (H.-P.C.)
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