Abstract

In this Letter, we report a carbon dioxide gas sensor having 547 pieces of thin-film modified capillaries, which are derived from a microstructured polymer optical fiber preform. Compared with the conventional absorption-based sensor, the monolithic polymer capillary waveguide arrays have better sensitivity, because the huge sensing surfaces, composed of 547 pieces of dye-indicator-doped porous ethyl cellulose layers, interact directly with the gas molecules. As far as we know, a gas sensor based on multichannel capillary waveguide arrays has not been reported before.

© 2010 Optical Society of America

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References

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2010

2009

2008

2007

S. M. Borisov, M. C. Waldhier, I. Klimant, and O. S. Wolfbeis, Chem. Mater. 19, 6187 (2007).
[CrossRef]

X. H. Yang and L. L. Wang, Opt. Express 15, 16478 (2007).
[CrossRef] [PubMed]

2002

D. A. Nivens, M. V. Schiza, and S. M. Angel, Talanta 58, 543(2002).
[CrossRef]

1997

A. Mills, A. Lepre, and L. Wild, Sens. Actuators B 39, 419 (1997).
[CrossRef]

Angel, S. M.

D. A. Nivens, M. V. Schiza, and S. M. Angel, Talanta 58, 543(2002).
[CrossRef]

Borisov, S. M.

S. M. Borisov, M. C. Waldhier, I. Klimant, and O. S. Wolfbeis, Chem. Mater. 19, 6187 (2007).
[CrossRef]

Chu, C. S.

C. S. Chu and Y. L. Lo, Sens. Actuators B 143, 205 (2009).
[CrossRef]

Klimant, I.

S. M. Borisov, M. C. Waldhier, I. Klimant, and O. S. Wolfbeis, Chem. Mater. 19, 6187 (2007).
[CrossRef]

Kong, D. P.

Lepre, A.

A. Mills, A. Lepre, and L. Wild, Sens. Actuators B 39, 419 (1997).
[CrossRef]

Li, D. D.

Lo, Y. L.

C. S. Chu and Y. L. Lo, Sens. Actuators B 143, 205 (2009).
[CrossRef]

Ma, C.

Mills, A.

A. Mills, A. Lepre, and L. Wild, Sens. Actuators B 39, 419 (1997).
[CrossRef]

Nivens, D. A.

D. A. Nivens, M. V. Schiza, and S. M. Angel, Talanta 58, 543(2002).
[CrossRef]

Pickrell, G.

Schiza, M. V.

D. A. Nivens, M. V. Schiza, and S. M. Angel, Talanta 58, 543(2002).
[CrossRef]

Scott, B.

Waldhier, M. C.

S. M. Borisov, M. C. Waldhier, I. Klimant, and O. S. Wolfbeis, Chem. Mater. 19, 6187 (2007).
[CrossRef]

Wang, A.

Wang, J.

Wang, L.

Wang, L. L.

Wild, L.

A. Mills, A. Lepre, and L. Wild, Sens. Actuators B 39, 419 (1997).
[CrossRef]

Wolfbeis, O. S.

S. M. Borisov, M. C. Waldhier, I. Klimant, and O. S. Wolfbeis, Chem. Mater. 19, 6187 (2007).
[CrossRef]

Yang, X.

Yang, X. H.

Appl. Opt.

Appl. Spectrosc.

Chem. Mater.

S. M. Borisov, M. C. Waldhier, I. Klimant, and O. S. Wolfbeis, Chem. Mater. 19, 6187 (2007).
[CrossRef]

Opt. Express

Opt. Lett.

Sens. Actuators B

A. Mills, A. Lepre, and L. Wild, Sens. Actuators B 39, 419 (1997).
[CrossRef]

C. S. Chu and Y. L. Lo, Sens. Actuators B 143, 205 (2009).
[CrossRef]

Talanta

D. A. Nivens, M. V. Schiza, and S. M. Angel, Talanta 58, 543(2002).
[CrossRef]

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Figures (6)

Fig. 1
Fig. 1

Schematic structure of the CO 2 gas sensor.

Fig. 2
Fig. 2

SEM pictures of (a) MPOF end face and (b) part of the vertical section of a sensing film.

Fig. 3
Fig. 3

Schematic sensing mechanism of the sensing film contained in the MPOF.

Fig. 4
Fig. 4

Absorption spectra of (a) phenol red ethanol solution, (b) phenol red in the CTAOH-contained ethanol solution, and (c) sensing film.

Fig. 5
Fig. 5

Response curve of the sensor for CO 2 . Error bars represent 1 SD for four measurements.

Fig. 6
Fig. 6

Light intensity changes recorded when switching between 100% nitrogen and 100% CO 2 .

Equations (1)

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{ Q + D · x H 2 O } + CO 2 ( g ) { Q + HCO 3 · ( x 1 ) H 2 O · HD } .

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