Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
This study reports on the plasmon-mediated remote Raman sensing promoted by specially designed coaxial nanowires. This unusual geometry for Raman study is based on the separation, by several micrometres, of the excitation laser spot, on one tip of the nanowire, and the Raman detection at the other tip. The very weak efficiency of Raman emission makes it challenging in a remote configuration. For the proof-of-concept, we designed coaxial nanowires consisting of a gold core to propagate surface plasmon polaritons and a Raman-emitting shell of poly(3,4-ethylene-dioxythiophene). The success of the fabrication was demonstrated by correlating, for the same single nanowire, a morphological analysis by electron microscopy and Raman spectroscopy analysis. Importantly for probing the remote-Raman effect, the original hard template-based process allows one to control the location of the polymer shell all along the nanowire, or only close to one or the two nanowire tips. Such all-in-one single nanowires could have applications in the remote detection of photo-degradable substances and for exploring 1D nanosources for integrated photonic and plasmonic systems.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/C8NR00125A | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Three-dimensional KV(PO)@Carbon core-shell coaxial nanowire networks for High-rate sodium-ion batteries.
J Colloid Interface Sci
September 2025
Institute of Advanced Optoelectronic Materials and Technology, College of Big Data and Information Engineering, Guizhou University, Guiyang 550025, China. Electronic address:
Potassium vanadium phosphate is an emerging sodium superionic conductor (NASICON) material with great potential as a cathode for sodium-ion batteries, owing to its high operating voltage, structural stability, and low cost. However, its poor electronic conductivity, along with significant volume expansion and stress effects during Na insertion and extraction, severely limits its electrochemical performance, hindering its practical application. In this study, a three-dimensional (3D) carbon-coated KV(PO) core-shell coaxial nanowire network (KVP@C) was synthesized using a simple electrospinning method combined with high-temperature annealing.
View Article and Find Full Text PDFCrystalline CoP@ Amorphous WP Coaxial Nanowire Arrays as Bifunctional Electrocatalyst for Water Splitting.
Small
April 2025
Xi'an Engineering Research Center of Environmental Nanocomposites, Shaanxi University of Science and Technology & Xi'an Frontier Materials Technology Co., LTD, Xi'an, 710116, China.
The crystalline CoP@ amorphous WP core-shell nanowire arrays are oriented grown on the Ni foam (CoP@WP/NF). The amorphous WP shell provides more active sites, and the interface charge coupling accelerates the kinetic of the catalytic reaction, making the CoP@WP/NF catalysts excellent activity. In acidic, only 13 and 97 mV overpotentials are needed to reach 10 mA cm and 100 mA cm, respectively, which are the lowest overpotentials among all reported Transition metal phosphide (TMP) catalysts, of course, much lower than that of the Pt/C catalyst (31 mV at 10 mA cm, 120 mV at 100 mA cm).
View Article and Find Full Text PDFNanowire-Activated Formation of Coaxial Core-Shell Nanostructure Encapsulated by Carbon Nanotube.
Langmuir
March 2025
State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, PR China.
Molecular dynamics simulations have unveiled the atomic-scale mechanisms underlying the formation of core-shell nanostructures involving nanowires (NWs) and graphene. Our study identifies two pivotal steps in this process: the self-scrolling of graphene around NWs and the subsequent edge connection to form carbon nanotubes (CNTs). The tendency of graphene to scroll is governed by the complex interplay of van der Waals forces.
View Article and Find Full Text PDFRadar-Terahertz-Infrared Compatible Stealth Coaxial Silver Nanowire@Carbon Nano-Cable Aerogel.
Angew Chem Int Ed Engl
March 2025
Center for Bioinspired Science and Technology, Hangzhou International Innovation Institute, Beihang University, Hangzhou, 311115.
Achieving multi-spectrum compatible stealth in radar-terahertz-infrared bands with robust performance has great prospects for both military and civilian applications. However, the progress of materials encounters substantial challenges due to the significant variability in frequency coupling properties across different electromagnetic wave bands. Here, this work presents the design of a multi-scale structure and fabricates a lightweight aerogel (silver nanowire@carbon, AgNW@C) consisting of a regular coaxial nano-cable, with silver nanowire as the core and amorphous-graphitized hybrid carbon as the outer-layer.
View Article and Find Full Text PDFPlateau-Rayleigh Instability in Soft-Lattice Inorganic Solids.
J Am Chem Soc
December 2024
New Cornerstone Science Laboratory, Department of Chemistry, Institute of Biomimetic Materials and Chemistry, Anhui Engineering Laboratory of Biomimetic Materials, Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, University of Science a
Plateau-Rayleigh instability─a macroscopic phenomenon describing the volume-constant breakup of one-dimensional continuous fluids─has now been widely observed in adatoms, liquids, polymers, and liquid metals. This instability enables controlled wetting-dewetting behavior at fluid-solid interfaces and, thereby, the self-limited patterning into ordered structures. However, it has yet to be observed in conventional inorganic solids, as the rigid lattices restrict their "fluidity".
View Article and Find Full Text PDF