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.
![]() | PDF Download (561kB) - Repository staff only |
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 ...

Export bibliographical data
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: |
| ||||
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 |