Back to Search
Start Over
Precipitation of Pt Nanoparticles Inside Ion-Track-Etched Capillaries
- Source :
- Quantum Beam Science, Volume 4, Issue 1, Quantum Beam Science, Vol 4, Iss 1, p 8 (2020)
- Publication Year :
- 2020
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2020.
-
Abstract
- Ion-track-etched capillaries containing nanoparticles of precious metals (e.g., Pt, Au, and Ag) can be applied to plasmonic absorber materials. The precipitation of homogeneous and highly dispersed precious metal nanoparticles inside capillaries represents a key process. Ion-track-etched capillaries (diameter: 500 nm, length: 25 m) were created in polyimide film by 350 MeV Xe irradiation (3 &times<br />107 ions/cm2) and chemical etching (using a sodium hypochlorite solution). The films with capillaries were immersed in an aqueous solution containing 0.1&ndash<br />10 mmol/L H2PtCl6 and 0.5 vol% C2H5OH, and then irradiated with a 2 MeV electron beam up to a fluence of 1.4 &times<br />1016 e/cm2. The Pt particles inside the capillaries were characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The precipitation of Pt nanoparticles and isolated aggregates inside the capillaries was confirmed by TEM. The Pt nanoparticles tended to aggregate under increasing concentrations of H2PtCl6 in the aqueous solution<br />meanwhile, no changes in nanoparticle size were noted under increasing electron beam fluence. The results suggest that the proposed method can be used to form metal nanoparticles in nanosized capillaries with a high aspect ratio.
- Subjects :
- Technology
Nuclear and High Energy Physics
Aqueous solution
Materials science
Scanning electron microscope
Precipitation (chemistry)
Ion track
ion irradiation
Nanoparticle
Pt
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Isotropic etching
Fluence
Atomic and Molecular Physics, and Optics
TK1-9971
0104 chemical sciences
Chemical engineering
Transmission electron microscopy
nanoparticles
Electrical engineering. Electronics. Nuclear engineering
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 2412382X
- Database :
- OpenAIRE
- Journal :
- Quantum Beam Science
- Accession number :
- edsair.doi.dedup.....8cb163112ea4a7976335e648af362c86
- Full Text :
- https://doi.org/10.3390/qubs4010008