Temporal Evolution Study of the Plasma Induced by CO2 Pulsed Laser on Targets of Titanium Oxides

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F13%3A00397650" target="_blank" >RIV/67985858:_____/13:00397650 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.sab.2013.06.002" target="_blank" >http://dx.doi.org/10.1016/j.sab.2013.06.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sab.2013.06.002" target="_blank" >10.1016/j.sab.2013.06.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Temporal Evolution Study of the Plasma Induced by CO2 Pulsed Laser on Targets of Titanium Oxides

Popis výsledku v původním jazyce

This paper reports studies on time-resolved laser induced breakdown spectroscopy (LIBS) of plasmas induced by IR nanosecond laser pulses on the titanium oxides TiO and TiO2 (anatase). LIBS excitation was performed using a CO2 laser. The laser-induced plasma was found strongly ionized yielding Ti+, O+, Ti2+, O2+, Ti3+, and Ti4+ species and rich in neutral titanium and oxygen atoms. The temporal behavior of specific emission lines of Ti, Ti2+ and Ti3+ was characterized. The results show a faster decay ofTi3+ and Ti2+ ionic species than that of Ti+ and neutral Ti atoms. Spectroscopic diagnostics were used to determine the time-resolved electron density and excitation temperatures. Laser irradiation of TiO2-anatase induces on the surface sample the polymorphic transformation to TiO2-rutile. The dependence on fluence and number of irradiation pulses of this transformation was studied by micro-Raman spectroscopy.

Název v anglickém jazyce

Temporal Evolution Study of the Plasma Induced by CO2 Pulsed Laser on Targets of Titanium Oxides

Popis výsledku anglicky

This paper reports studies on time-resolved laser induced breakdown spectroscopy (LIBS) of plasmas induced by IR nanosecond laser pulses on the titanium oxides TiO and TiO2 (anatase). LIBS excitation was performed using a CO2 laser. The laser-induced plasma was found strongly ionized yielding Ti+, O+, Ti2+, O2+, Ti3+, and Ti4+ species and rich in neutral titanium and oxygen atoms. The temporal behavior of specific emission lines of Ti, Ti2+ and Ti3+ was characterized. The results show a faster decay ofTi3+ and Ti2+ ionic species than that of Ti+ and neutral Ti atoms. Spectroscopic diagnostics were used to determine the time-resolved electron density and excitation temperatures. Laser irradiation of TiO2-anatase induces on the surface sample the polymorphic transformation to TiO2-rutile. The dependence on fluence and number of irradiation pulses of this transformation was studied by micro-Raman spectroscopy.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CH - Jaderná a kvantová chemie, fotochemie

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Spectrochimica Acta. B

ISSN

0584-8547

e-ISSN

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Svazek periodika

86

Číslo periodika v rámci svazku

AUG 1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

88-93

Kód UT WoS článku

000323298400011

EID výsledku v databázi Scopus

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