About: Stabilization of Au nanoparticles prepared by laser ablation in chloroform with free-base porphyrin molecules

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About: Stabilization of Au nanoparticles prepared by laser ablation in chloroform with free-base porphyrin molecules Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Laser ablation (LA) of a Au foil immersed in chloroform and/or in diluted 5,10,15,20-tetrakis-4-pyridylporphine (TPyP) chloroform solutions was carried out using 1064 nm nanosecond laser pulses. The products were characterized by UV-visible-NIR optical extinction and IR absorption measurements, Raman spectroscopy and transmission electron microscopy (TEM). Our results show that with highly focused laser beam chloroform underwent photochemical reactions and no nanoparticles with observable surface plasmon extinction (SPE) band were formed whereas at particular focusing conditions Au nanoparticles with the SPE band typical for Au organosols were created. When a small amount of TPyP was present in the course of LA both the efficiency of Au nanoparticles formation and the stability of the resulting organosols were improved. Laser ablation (LA) of a Au foil immersed in chloroform and/or in diluted 5,10,15,20-tetrakis-4-pyridylporphine (TPyP) chloroform solutions was carried out using 1064 nm nanosecond laser pulses. The products were characterized by UV-visible-NIR optical extinction and IR absorption measurements, Raman spectroscopy and transmission electron microscopy (TEM). Our results show that with highly focused laser beam chloroform underwent photochemical reactions and no nanoparticles with observable surface plasmon extinction (SPE) band were formed whereas at particular focusing conditions Au nanoparticles with the SPE band typical for Au organosols were created. When a small amount of TPyP was present in the course of LA both the efficiency of Au nanoparticles formation and the stability of the resulting organosols were improved. (en)
Title	Stabilization of Au nanoparticles prepared by laser ablation in chloroform with free-base porphyrin molecules Stabilization of Au nanoparticles prepared by laser ablation in chloroform with free-base porphyrin molecules (en)
skos:prefLabel	Stabilization of Au nanoparticles prepared by laser ablation in chloroform with free-base porphyrin molecules Stabilization of Au nanoparticles prepared by laser ablation in chloroform with free-base porphyrin molecules (en)
skos:notation	RIV/00216208:11320/10:10070604!RIV11-GA0-11320___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/07/0717), P(KAN100500652), Z(AV0Z40500505), Z(MSM0021620835)
http://linked.open...iv/cisloPeriodika	9
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Procházka, Marek
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	289599
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/10:10070604
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	porphyrin; chloroform; laser ablation; Au nanoparticles (en)
http://linked.open.../riv/klicoveSlovo	porphyrin Au nanoparticles chloroform laser ablation
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[AB140FC14DD3]
http://linked.open...i/riv/nazevZdroje	Applied Surface Science
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Laser-assisted chemical processes in plasmonic metal nanoparticle systems Heterogeneous and hybrid nanocomposite materials for solar cells
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	256
http://linked.open...iv/tvurceVysledku	Pfleger, Jiří Procházka, Marek Šišková, Karolína
http://linked.open...ain/vavai/riv/wos	000274153800052
http://linked.open...n/vavai/riv/zamer	Progresivní makromolekulární materiály a supramolekulární systémy: syntéza a studium vlastností, jevů a možností využití pro speciální aplikace a moderní technologie Fyzika molekulárních, makromolekulárních a biologických systémů
issn	0169-4332
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	11320

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