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 E. Van Der Boom; Ignazio Fragalà

doi:10.1021/jp062967g

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 E. Van Der Boom, Ignazio Fragalà

Weizmann Institute of Science, Israel

Research output: Contribution to journal › Article

89 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 language	English
Pages (from-to)	16781-16786
Number of pages	6
Journal	Journal of Physical Chemistry B
Volume	110
Issue number	33
DOIs	https://doi.org/10.1021/jp062967g
Publication status	Published - Aug 24 2006

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ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

Cite this

Gulino, A., Giuffrida, S., Mineo, P., Purrazzo, M., Scamporrino, E., Ventimiglia, G., Van Der Boom, M. E., & 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 E.; Fragalà, Ignazio.

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

Research output: Contribution to journal › Article

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10.1021/jp062967g