Controlled growth and positioning of metal nanoparticles via scanning probe microscopy.
A process enabling both the controlled growth and positioning of metal nanoparticles (NPs) is reported. Using scanning probe microscopy (SPM) techniques, metal NPs are directly grown in the region of interest via the reduction of metallic ions in a polymer matrix induced by a properly biased SPM tip. The metallic nature of these NPs is established via X-ray diffraction and surface-enhanced Raman spectroscopy experiments. Some initial applications of this process, such as the decoration of carbon nanotubes with metal NPs, are also briefly demonstrated and discussed.
Silva-Pinto
Elisangela
E
Departamento de Física, Universidade Federal de Minas Gerais, UFMG, Ave. Antonio Carlos, 6627 Belo Horizonte, MG, Brazil.
Gomes
Ana P
AP
Pinheiro
Carlos B
CB
Ladeira
Luiz O
LO
Pimenta
Marcos A
MA
Neves
Bernardo R A
BR
D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry*; D008670:Metals / Q000737:chemistry; D018625:Microscopy, Atomic Force / Q000379:methods; D020527:Microscopy, Scanning Probe / Q000379:methods*; D036103:Nanotechnology / Q000379:methods; D037742:Nanotubes, Carbon / Q000737:chemistry; D011108:Polymers / Q000737:chemistry; D012834:Silver / Q000737:chemistry; D013059:Spectrum Analysis, Raman / Q000379:methods; D013499:Surface Properties; D014961:X-Ray Diffraction
D008670:Metals; D037742:Nanotubes, Carbon; D011108:Polymers; D012834:Silver