Photoluminescence of a covalent assembled porphyrin-based monolayer: Optical behavior in the presence of O2

Antonino Gulino, Salvatore Giuffrida, Placido Mineo, Michele Purrazzo, Emilio Scamporrino, Giorgio Ventimiglia, Milko van der Boom, Ignazio Fragalà

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

The optical O2 recognition capability of a covalently assembled monolayer (CAM) of 5,10,15-tri-{p-dodecanoxyphenyl}-20-(p-hydroxyphenyl) porphyrin on silica-based substrates was studied at room temperature by both UV-vis and photoluminescence (PL) measurements. The optical properties of this robust monolayer setup appear to be highly sensitive to the O2 concentration in N2. Both UV-vis and PL measurements were used to study the porphyrin-oxygen interactions. The monolayer-based sensor exhibits a short response time and can be restored within seconds. The oxygen-induced luminescence quenching of the monolayer involves both ground and excited states. The proposed mechanism responsible for the luminescence quenching involves different kinds of interactions between the monolayer and O2.

Original languageEnglish
Pages (from-to)16781-16786
Number of pages6
JournalJournal of Physical Chemistry B
Volume110
Issue number33
DOIs
Publication statusPublished - Aug 24 2006

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Porphyrins
porphyrins
Monolayers
Photoluminescence
quenching
luminescence
photoluminescence
oxygen
interactions
Luminescence
silicon dioxide
Quenching
optical properties
ground state
sensors
Oxygen
room temperature
excitation
Excited states
Silicon Dioxide

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Gulino, A., Giuffrida, S., Mineo, P., Purrazzo, M., Scamporrino, E., Ventimiglia, G., ... Fragalà, I. (2006). Photoluminescence of a covalent assembled porphyrin-based monolayer: Optical behavior in the presence of O2. Journal of Physical Chemistry B, 110(33), 16781-16786. https://doi.org/10.1021/jp062967g

Photoluminescence of a covalent assembled porphyrin-based monolayer : Optical behavior in the presence of O2. / Gulino, Antonino; Giuffrida, Salvatore; Mineo, Placido; Purrazzo, Michele; Scamporrino, Emilio; Ventimiglia, Giorgio; van der Boom, Milko; Fragalà, Ignazio.

In: Journal of Physical Chemistry B, Vol. 110, No. 33, 24.08.2006, p. 16781-16786.

Research output: Contribution to journalArticle

Gulino, A, Giuffrida, S, Mineo, P, Purrazzo, M, Scamporrino, E, Ventimiglia, G, van der Boom, M & Fragalà, I 2006, 'Photoluminescence of a covalent assembled porphyrin-based monolayer: Optical behavior in the presence of O2', Journal of Physical Chemistry B, vol. 110, no. 33, pp. 16781-16786. https://doi.org/10.1021/jp062967g
Gulino A, Giuffrida S, Mineo P, Purrazzo M, Scamporrino E, Ventimiglia G et al. Photoluminescence of a covalent assembled porphyrin-based monolayer: Optical behavior in the presence of O2. Journal of Physical Chemistry B. 2006 Aug 24;110(33):16781-16786. https://doi.org/10.1021/jp062967g
Gulino, Antonino ; Giuffrida, Salvatore ; Mineo, Placido ; Purrazzo, Michele ; Scamporrino, Emilio ; Ventimiglia, Giorgio ; van der Boom, Milko ; Fragalà, Ignazio. / Photoluminescence of a covalent assembled porphyrin-based monolayer : Optical behavior in the presence of O2. In: Journal of Physical Chemistry B. 2006 ; Vol. 110, No. 33. pp. 16781-16786.
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