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  • Pulsní laserovou ablací bimetalických Au-Pt terčů byly přípraveny Au-Pt nanočástice na vysoce orientovaném pyrolytickém grafitu (HOPG). Připravené nanostruktury byly charakterizovány pomocí fotoelektronové spektroskopie (XPS) a mikroskopie atomárních sil (AFM). Pomocí AFM byla zjištěna bimodální velikostní distribuce a také přítomnost malého počtu velkých nanočástic. V souladu s tímto zjištěním byly identifikovány dvě komponenty spekter fotoelektronů Au(4f) a Pt (4f). Analýzou tvaru spektra KLL Augerových elektronů uhlíku bylo zjištěno, že pulsní laserové deposice ve vakuu vede ke vzniku defektů na povrchu grafitu. Na základě analýzy spektrálních dat bylo ukázáno, že platina je přítomna v bimetalické formě. (cs)
  • Au-Pt nanostructures on highly oriented pyrolytic graphite (HOPG) were prepared by irradiating bimetallic target under ultrahigh vacuum with pulsed radiation of Nd:YAG laser. The deposited nanostructures were characterized by X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). The measured spectra of Au (4f) and Pt (4f) photoelectrons of laser deposits were composed of two overlapping doublets. Analysis of images obtained from AFM revealed bimodal particle size distribution and presence of few large particles. In agreement with AFM images of the deposit we attributed a two doublet structure of Au (4f) and Pt (4f) spectra to bimodal nanoparticle size distribution. Carbon KLL Auger electron spectra revealed formation of defects in the superficial layers of HOPG by impinging metal ions accompanied by appearance of sp3 hybridized carbon atoms.
  • Au-Pt nanostructures on highly oriented pyrolytic graphite (HOPG) were prepared by irradiating bimetallic target under ultrahigh vacuum with pulsed radiation of Nd:YAG laser. The deposited nanostructures were characterized by X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). The measured spectra of Au (4f) and Pt (4f) photoelectrons of laser deposits were composed of two overlapping doublets. Analysis of images obtained from AFM revealed bimodal particle size distribution and presence of few large particles. In agreement with AFM images of the deposit we attributed a two doublet structure of Au (4f) and Pt (4f) spectra to bimodal nanoparticle size distribution. Carbon KLL Auger electron spectra revealed formation of defects in the superficial layers of HOPG by impinging metal ions accompanied by appearance of sp3 hybridized carbon atoms. (en)
Title
  • Preparation of Au-Pt nanostructures on highly oriented pyrolitic graphite surfaces by pulsed laser deposition and their characterization by XPS and AFM methods
  • Příprava Au-Pt nanostruktur na vysoce orientovaném pyrolytickém grafitu pomocí pulsní laserové deposice a jejich charakterizace metodami XPS a AFM (cs)
  • Preparation of Au-Pt nanostructures on highly oriented pyrolitic graphite surfaces by pulsed laser deposition and their characterization by XPS and AFM methods (en)
skos:prefLabel
  • Preparation of Au-Pt nanostructures on highly oriented pyrolitic graphite surfaces by pulsed laser deposition and their characterization by XPS and AFM methods
  • Příprava Au-Pt nanostruktur na vysoce orientovaném pyrolytickém grafitu pomocí pulsní laserové deposice a jejich charakterizace metodami XPS a AFM (cs)
  • Preparation of Au-Pt nanostructures on highly oriented pyrolitic graphite surfaces by pulsed laser deposition and their characterization by XPS and AFM methods (en)
skos:notation
  • RIV/61388955:_____/08:00320593!RIV09-AV0-61388955
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(1ET400400413), P(GA104/08/1501), Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika
  • 10
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 389017
http://linked.open...ai/riv/idVysledku
  • RIV/61388955:_____/08:00320593
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Au-Pt; X-ray photoelectron spectroscopy; AFM (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [D9F7B3A1BF05]
http://linked.open...i/riv/nazevZdroje
  • Collection of Czechoslovak Chemical Communications
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
  • 73
http://linked.open...iv/tvurceVysledku
  • Janda, Pavel
  • Bastl, Zdeněk
  • Plšek, Jan
http://linked.open...ain/vavai/riv/wos
  • 000263121400006
http://linked.open...n/vavai/riv/zamer
issn
  • 0010-0765
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