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Silicon Wafer Functionalization with a Luminescent Tb(III) Coordination Complex: Synthesis, Characterization, and Application to the Optical Detection of NO in the Gas Phase

Authors :
Bijal K. Bahuleyan
Kathleen Toussaint
Hervé Rinnert
Raphaël Vallon
Michaël Molinari
Françoise Chuburu
Cyril Cadiou
Source :
Molecules, Vol 24, Iss 10, p 1914 (2019)
Publication Year :
2019
Publisher :
MDPI AG, 2019.

Abstract

A new luminescent Tb-DOTAGA (1,4,7,10-tetraazacyclododecane-1-glutaric-4,7,10- triacetic acid) complex (TbL) was synthesized and covalently immobilized on a silicon wafer. The grafting process was monitored by means of IR and XPS spectroscopies and the optical properties of the functionalized silicon wafer (TbL@Si) were investigated by fluorescence experiments. A homemade setup was then implemented in order to follow TbL@Si optical properties in the presence of gaseous nitric oxide (NO). The prima facie results indicated that in the presence of NO, the wafer fluorescence was partially quenched. This quenching was reversible as soon as NO was pumped outside the fluorescence cell, which could be interesting for the further development of lanthanide labelled silicon wafers as gas phase sensors.

Details

Language :
English
ISSN :
14203049
Volume :
24
Issue :
10
Database :
Directory of Open Access Journals
Journal :
Molecules
Publication Type :
Academic Journal
Accession number :
edsdoj.4968fb99f79546199735e9e9dfde295f
Document Type :
article
Full Text :
https://doi.org/10.3390/molecules24101914