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Upconverting nanoparticle based optical sensor for carbon dioxide

Ali, Reham, Saleh, Sayed M., Meier, Robert J., Azab, Hassan A, Abdelgawad, Ibraheim I. and Wolfbeis, Otto S. (2010) Upconverting nanoparticle based optical sensor for carbon dioxide. Sensors and Actuators B: Chemical 150 (1), pp. 126-131.

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Date of publication of this fulltext: 18 Mar 2011 06:44

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Abstract

We demonstrate a novel optical sensor for carbon dioxide in concentrations between 0 and 3%. The sensing scheme is based on the optical interrogation of a 12-μm polystyrene (PS) film containing upconverting nanoparticles (UCNPs; 40–100 nm in size) of the type NaYF4:Yb,Er, and the longwave absorption pH probe bromothymol blue (BTB) in its anionic (blue) form. PS is chosen as a matrix because it ...

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Item type:Article
Date:21 September 2010
Institutions:Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Antje J. Bäumner, formerly Prof. Wolfbeis)
Identification Number:
ValueType
10.1016/j.snb.2010.07.031DOI
Keywords:Optical sensor; Carbon dioxide; Nanoparticle; Upconversion; Luminescence
Dewey Decimal Classification:500 Science > 540 Chemistry & allied sciences
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Item ID:19957
Owner only: item control page

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