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Photoluminescence from porous silicon impregnated with cobalt phthalocyanine

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F05%3A00014622" target="_blank" >RIV/60461373:22340/05:00014622 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Photoluminescence from porous silicon impregnated with cobalt phthalocyanine

  • Original language description

    Photoluminescence quenching of porous silicon in presence of various analytes is used for sensing purposes. Sensor elements based on unmodified porous silicon exhibit high sensitivity in gas phase detection but relatively low operational stability. Stabilization of porous silicon surface with org. mols. enables to enhance operational stability and optimize sensor response for specific analytes. We modified porous silicon surface using cobalt phthalocyanine by means of phys. adsorption in the porous matrix. We obsd. modified photoluminescence quenching response from these porous silicon samples impregnated with cobalt phthalocyanine. From concn. dependence of photoluminescence quenching in presence of linear alcs. in gas phase we detd. sensitivity of sensor response, from long-term evolution of porous silicon photoluminescence intensity we evaluated operational stability of sensor elements. Link between chem. properties of phthalocyanine mols. and variation of sensor response of impregn

  • Czech name

    Fotoluminescence porézního křemíku impregnovaného kobalt ftalocyaninem

  • Czech description

    Fotoluminiscenční zhasínaní pórovitého křemíku v přítomnosti různých analytů je užívané pro detekční účely. Senzor založený na nemodifikovaném pórovitém křemíku má vysokou citlivost pro detekci v plynné fáze ale relativně nízkou operační stabilitu. Stabilizace pórovitého křemíku povrchu s organickými molekulami umožní zvětšit operační stabilitu a optimalizovat senzorovou odezvu pro specifické analyty. Modifikovali jsme pórovitý křemík povrch adsorpcí kobaltu phthalocyaninu do pórovité matice a pozorovali změněné fotoluminiscenční zhašení pórovitého křemíku s kobalt fthalocyaninem.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CB - Analytical chemistry, separation

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA203%2F03%2F0900" target="_blank" >GA203/03/0900: Optical porous-silicon-based sensors with enhanced recognition properties</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2005

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Biomimetic and Supramolecular Systems

  • ISSN

    0928-4931

  • e-ISSN

  • Volume of the periodical

    25

  • Issue of the periodical within the volume

    5

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    5

  • Pages from-to

    645-649

  • UT code for WoS article

  • EID of the result in the Scopus database