About: Laser Ablation of Silver in Aqueous Solutions of Organic Species: Probing Ag Nanoparticle-Adsorbate Systems Evolution by Surface-Enhanced Raman and Surface Plasmon Extinction Spectra     Goto   Sponge   NotDistinct   Permalink

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  • Laser ablation (LA) of a Ag target in aqueous solutions of some strongly adsorbing ions resulted in formation of chemically modified Ag nanoparticles (NPs). A prospective development of this approach into a one-pot synthesis of hybrid Ag NPs-organic species systems is conditioned by assessment of the factors affecting the hybrid system formation and stability during LA. In this study, intermittent LA of a Ag target accompanied by fragmentation of growing Ag NPs was carried out in aqueous solutions of 2,2'-bipyridine and/or of a cationic free-base porphyrin with nanosecond laser pulses of 1064 and 532 inn wavelengths. Ag NP/organic adsorbate systems resulting from each of the individual stages of the LA process were probed by SERS (surface-enhanced Raman scattering) and SPE (surface plasmon extinction) spectral measurements. The morphologies of selected systems were visualized by TEM (transmission electron microscopy). The efficiency of Ag NP fragmentation during LA (which corresponds to the efficiency of laser pulse absorption by the NPs) and the rate of the organic molecules' thermal desorption from the surfaces of Ag NPs heated by the laser pulse absorption have been recognized as crucial factors affecting the hybrid system stability.
  • Laser ablation (LA) of a Ag target in aqueous solutions of some strongly adsorbing ions resulted in formation of chemically modified Ag nanoparticles (NPs). A prospective development of this approach into a one-pot synthesis of hybrid Ag NPs-organic species systems is conditioned by assessment of the factors affecting the hybrid system formation and stability during LA. In this study, intermittent LA of a Ag target accompanied by fragmentation of growing Ag NPs was carried out in aqueous solutions of 2,2'-bipyridine and/or of a cationic free-base porphyrin with nanosecond laser pulses of 1064 and 532 inn wavelengths. Ag NP/organic adsorbate systems resulting from each of the individual stages of the LA process were probed by SERS (surface-enhanced Raman scattering) and SPE (surface plasmon extinction) spectral measurements. The morphologies of selected systems were visualized by TEM (transmission electron microscopy). The efficiency of Ag NP fragmentation during LA (which corresponds to the efficiency of laser pulse absorption by the NPs) and the rate of the organic molecules' thermal desorption from the surfaces of Ag NPs heated by the laser pulse absorption have been recognized as crucial factors affecting the hybrid system stability. (en)
Title
  • Laser Ablation of Silver in Aqueous Solutions of Organic Species: Probing Ag Nanoparticle-Adsorbate Systems Evolution by Surface-Enhanced Raman and Surface Plasmon Extinction Spectra
  • Laser Ablation of Silver in Aqueous Solutions of Organic Species: Probing Ag Nanoparticle-Adsorbate Systems Evolution by Surface-Enhanced Raman and Surface Plasmon Extinction Spectra (en)
skos:prefLabel
  • Laser Ablation of Silver in Aqueous Solutions of Organic Species: Probing Ag Nanoparticle-Adsorbate Systems Evolution by Surface-Enhanced Raman and Surface Plasmon Extinction Spectra
  • Laser Ablation of Silver in Aqueous Solutions of Organic Species: Probing Ag Nanoparticle-Adsorbate Systems Evolution by Surface-Enhanced Raman and Surface Plasmon Extinction Spectra (en)
skos:notation
  • RIV/00216208:11310/11:10089803!RIV12-GA0-11310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GAP208/10/0941), Z(MSM0021620835), Z(MSM0021620857)
http://linked.open...iv/cisloPeriodika
  • 13
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
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  • 208982
http://linked.open...ai/riv/idVysledku
  • RIV/00216208:11310/11:10089803
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • PARTICLES; EFFICIENCY; SPECTROSCOPY; FRAGMENTATION; SCATTERING; WAVELENGTH; SIZE; METAL COLLOIDS; GOLD NANOPARTICLES; RESONANCE RAMAN (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [6EE1230DE9E9]
http://linked.open...i/riv/nazevZdroje
  • Journal of Physical Chemistry C
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 115
http://linked.open...iv/tvurceVysledku
  • Procházka, Marek
  • Turpin, Pierre-Yves
  • Thorel, Alain
  • Šišková, Karolína
  • Vlčková, Blanka
http://linked.open...ain/vavai/riv/wos
  • 000288885900028
http://linked.open...n/vavai/riv/zamer
issn
  • 1932-7447
number of pages
http://bibframe.org/vocab/doi
  • 10.1021/jp110907d
http://localhost/t...ganizacniJednotka
  • 11310
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