Oxygen effects on tetrapropylporphycene near-infrared luminescence kinetics
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10173449" target="_blank" >RIV/00216208:11320/13:10173449 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1016/j.molstruc.2012.12.029" target="_blank" >http://dx.doi.org/10.1016/j.molstruc.2012.12.029</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.molstruc.2012.12.029" target="_blank" >10.1016/j.molstruc.2012.12.029</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Oxygen effects on tetrapropylporphycene near-infrared luminescence kinetics
Popis výsledku v původním jazyce
Tetra-propyl-porphycene (TPrPo) in solution has been studied by means of time-and spectral-resolved near-infrared (NIR) luminescence spectroscopy. The NIR luminescence kinetics exhibits surprising dependence on oxygen concentration. There is a clearly visible long-lived (microsecond range) rise-section in biexponential kinetics at broad NIR spectral range of 800-1100 nm for lowered oxygen concentrations. The rise-section is not present in nitrogen-saturated samples and it also disappears after additionof singlet oxygen (O-1(2)) physical quencher DABCO, which means that the effect is O-1(2)-mediated. Kinetics of TPrPo delayed fluorescence detected around 650 nm possess a similar rise-decay character in microsecond range. Simultaneous measurements of O-1(2) phosphorescence kinetics, triplet-triplet transient absorption, and delayed fluorescence have provided additional information about the phenomenon. It is proposed that TPrPo shows a singlet oxygen-sensitized delayed fluorescence whic
Název v anglickém jazyce
Oxygen effects on tetrapropylporphycene near-infrared luminescence kinetics
Popis výsledku anglicky
Tetra-propyl-porphycene (TPrPo) in solution has been studied by means of time-and spectral-resolved near-infrared (NIR) luminescence spectroscopy. The NIR luminescence kinetics exhibits surprising dependence on oxygen concentration. There is a clearly visible long-lived (microsecond range) rise-section in biexponential kinetics at broad NIR spectral range of 800-1100 nm for lowered oxygen concentrations. The rise-section is not present in nitrogen-saturated samples and it also disappears after additionof singlet oxygen (O-1(2)) physical quencher DABCO, which means that the effect is O-1(2)-mediated. Kinetics of TPrPo delayed fluorescence detected around 650 nm possess a similar rise-decay character in microsecond range. Simultaneous measurements of O-1(2) phosphorescence kinetics, triplet-triplet transient absorption, and delayed fluorescence have provided additional information about the phenomenon. It is proposed that TPrPo shows a singlet oxygen-sensitized delayed fluorescence whic
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BO - Biofyzika
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/GD202%2F09%2FH041" target="_blank" >GD202/09/H041: Fyzika nanostruktur</a><br>
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2013
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Molecular Structure
ISSN
0022-2860
e-ISSN
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Svazek periodika
1044
Číslo periodika v rámci svazku
July 2013
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
5
Strana od-do
303-307
Kód UT WoS článku
000320635200046
EID výsledku v databázi Scopus
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