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Article
Open AccessThe Effect of Dielectric Constants on Noble Metal/Semiconductor SERS Enhancement: FDTD Simulation and Experiment Validation of Ag/Ge and Ag/Si Substrates
The finite-difference time-domain (FDTD) method was employed to simulate the electric field distribution for noble metal (Au or Ag)/semiconductor (Ge or Si) substrates. The simulation showed that noble metal/G...
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Article
The enhanced ammonia gas-sensing activity of gamma ray irradiated indium vanadate nanoribbons
Indium vanadate (InVO4) nanoribbons were irradiated with various doses of gamma ray irradiation. The results revealed that the crystal structure remained unchanged after irradiation while the UV–Vis spectra under...
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Article
The influence of ultrasonic frequency on the properties of Ni-Co coatings prepared by ultrasound-assisted electrodeposition
In this paper, Ni-Co coatings were electrodeposited onto carbon steel substrates with the aid of ultrasonic agitation. The coatings were analyzed by energy dispersive X-ray analysis (EDX), X-ray diffraction an...
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Article
Au-modified silicon nanowires for surface-enhanced fluorescence of Ln3+ (Ln = Pr, Nd, Ho, and Er)
The interaction of the surface plasmons of gold nanoparticles on silicon nanowires with fluorophores, lanthanide ions (praseodymium ions, Pr3+, neodymium ions Nd3+, holmium ions Ho3+, and erbium ions Er3+) was in...
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Article
Synthesis, characterization and catalytic property of manganese dioxide with different structures
In this paper, different crystallographic types and crystal morphologies of MnO2 nanomaterials have been selectively synthesized by a simple hydrothermal route. α-MnO2 nanowires, and γ-MnO2 hollow hierarchical sp...
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Article
A special section on semiconductors
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Article
Surface-enhanced fluorescence from copper nanoparticles on silicon nanowires
A method to enhance surface plasmon coupled fluorescence from copper nanoparticles on silicon nanowires is presented. Owing to resonant plasmons oscillation on the surface of Cu/Si nanostructure, the fluoresce...
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Article
Photoconductivity of a bundle of Bis(8-hydroxyquinoline) cadmium nanoribbons
Large-scale Bis(8-hydroxyquinoline) cadmium nanoribbons were obtained by a facile solvothermal method. The as-prepared products were characterized with X-ray diffraction, Fourier transform infrared and scannin...
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Article
Open AccessHighly-sensitive multiplexed in vivo imaging using pegylated upconversion nanoparticles
Lanthanide-based upconversion nanoparticles (UCNPs) have been widely explored in various fields, including optical imaging, in recent years. Although earlier work has shown that UCNPs with different lanthanide...
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Article
Bis-(8-hydroxyquinoline) mercury nanoribbons: preparation, characterization and photoconductivity
Bis-(8-hydroxyquinoline) mercury nanoribbons with average width of 300 nm, thickness of 50 nm and length of up to tens of micrometers were synthesized by a facile solvothermal method. X-ray powder diffraction ...
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Article
Wet route to silicon oxide quantum dots with fixed and strong blue emission
Amorphous silicon oxide quantum dots, with a quantum yield of 0.47 and blue emission fixed at 2.85 eV (433 nm), were obtained via two wet steps: first silicon nanowires reacted with potassium hydroxide at 50 °...
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Article
Microfabrication of a new sensor based on silver and silicon nanomaterials, and its application to the enrichment and detection of bovine serum albumin via surface-enhanced Raman scattering
A microchannel with a length of 40 mm, a width of 65 μm and a depth of 35 μm was fabricated on Si wafer via wet etching. This channel, composed of a silicon nanowire array and silver nanoparticles, served to e...
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Article
High-yield fabrication of t-Se nanowires via hydrothermal method and their photoconductivity
Large-scale fabrication of high-purity and uniform trigonal selenium (t-Se) nanowires was obtained by reducing SeO2 with glucose at 160 °C for 24 h. The resulting t-Se nanowires were characterized and confirmed b...
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Article
Titanate nanotubes: preparation, characterization, and application in the detection of dopamine
Titanate nanotubes were successfully synthesized via a hydrothermal process with the assistance of surfactant. These nanotubes with average length of several hundred nanometers and diameter of 10 nm were emplo...
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Article
Synthesis and electrochemical application of carbon nanotubes obtained from hexachloroethane
Carbon nanotubes (CNTs) with the average inner (outer) diameter of 10–20 nm (20–40 nm) and length up to 100s of nanometers were synthesized via Wurtz reaction at 400 °C for 12 h, using C2Cl6 and Na as reactants. ...
