Recognition enhancement of oxidized and methyl-10-undecenoate functionalized porous silicon in gas phase photoluminescence sensing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F10%3A10081699" target="_blank" >RIV/00216208:11320/10:10081699 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388963:_____/10:00345922 RIV/00216208:11310/10:10081699

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Recognition enhancement of oxidized and methyl-10-undecenoate functionalized porous silicon in gas phase photoluminescence sensing

Popis výsledku v původním jazyce

We present results of photoluminescence quenching measurements of sensor elements based on asprepared porous silicon, oxidized porous silicon and methyl-10-undecenoate functionalized porous silicon. Photoluminescence sensor response was quantitatively studied for a set of C1-C6 alcohols in gas phase. We demonstrate how functionalization of porous silicon surface modifies the photoluminescence sensor response from the point of view of molecular recognition enhancement for a subgroup of studied analytes.Observed phenomena are discussed in terms of polarity dependent interaction between surface species and various alcohols, surface binding capacity for a given analyte and dielectric quenching due to capillary condensation in porous silicon matrix. Mechanism of modified sensor response is attributed to polar interaction between alcohol groups of detected analytes and Si-OH and Si-O-Si groups at oxidized porous silicon surface and C O group at methyl 10-undecenoate functionalized porous si

Název v anglickém jazyce

Recognition enhancement of oxidized and methyl-10-undecenoate functionalized porous silicon in gas phase photoluminescence sensing

Popis výsledku anglicky

We present results of photoluminescence quenching measurements of sensor elements based on asprepared porous silicon, oxidized porous silicon and methyl-10-undecenoate functionalized porous silicon. Photoluminescence sensor response was quantitatively studied for a set of C1-C6 alcohols in gas phase. We demonstrate how functionalization of porous silicon surface modifies the photoluminescence sensor response from the point of view of molecular recognition enhancement for a subgroup of studied analytes.Observed phenomena are discussed in terms of polarity dependent interaction between surface species and various alcohols, surface binding capacity for a given analyte and dielectric quenching due to capillary condensation in porous silicon matrix. Mechanism of modified sensor response is attributed to polar interaction between alcohol groups of detected analytes and Si-OH and Si-O-Si groups at oxidized porous silicon surface and C O group at methyl 10-undecenoate functionalized porous si

Druh

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

CEP obor

JB - Senzory, čidla, měření a regulace

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Sensors and Actuators, B: Chemical

ISSN

0925-4005

e-ISSN

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Svazek periodika

147

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

000278679100005

EID výsledku v databázi Scopus

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