Detection of Toxic Organophosphate Nerve Agents Using DBR Porous Silicon Chip

Bong Ju Lee; Seung Hyun Jang; Hong Lae Sohn

doi:10.4028/www.scientific.net/SSP.124-126.491

Paper Titles

Low Temperature O₂ Plasma-Assisted Wafer Bonding of InP and a Garnet Crystal for an Optical Waveguide Isolator
p.475

Preparation and Property of Nonlinear Optical Materials Based on K₂O-BaO-TiO₂-SiO₂ Glasses
p.479

Investigation of Thermal Measurement Variables in High Power GaN-Based LEDs
p.483

Preparation and Characterization of 70TeO₂-30WO₃ Glass Thin Films by Radio-Frequency Magnetron Sputtering Method
p.487

Detection of Toxic Organophosphate Nerve Agents Using DBR Porous Silicon Chip
p.491

Formation of Nanocrystallites in the nc-Si Films by Co-Sputtering Aluminium and Silicon
p.495

Phosphor-Conversion White Light Emitting Diode Using InGaN Near-Ultraviolet Chip
p.499

Inductively Coupled Plasma Reactive Ion Etching of Ge-SiO₂ and SiON Using C₂F₆ and NF₃-Based Gas Mixtures
p.503

Comparison of Amorphous Selenium and Mercuric Iodide Film for Diagnostic X-Ray Imaging
p.507

HomeSolid State PhenomenaSolid State Phenomena Vols. 124-126Detection of Toxic Organophosphate Nerve Agents...

Detection of Toxic Organophosphate Nerve Agents Using DBR Porous Silicon Chip

Abstract:

The efficient detection method based on nanostructured photonic DBR PSi has been developed for DMMP, which is a simulant for G-type nerve agents. The manufactured DBR PSi chip exhibits a sharp photonic band gap at 520 nm. The detection method involves the shift of DBR peak in reflectivity spectra under the exposure of vapors of analyte. Rapid detection has been achieved in few seconds, in situ, and observed by the red-shift of DBR peak resulted from the increase of refractive indices in DBR PSi. When DBR PSi chip is exposed to DMMP, TEP, and DEEP-saturated air, DBR peak in reflectivity is red shifted by 10 nm, 25 nm, and 10 nm, respectively. Real-time detection for the nerve gases indicates that the measurement is reversible. Detection limit of DMMP (1.5 ppm) using DBR PSi is 8.8 mg/m3 for 1 min.

You might also be interested in these eBooks

Advances in Nanomaterials and Processing

View Preview

Info:

Periodical:

Solid State Phenomena (Volumes 124-126)

Pages:

491-494

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.124-126.491

Citation:

Cite this paper

Online since:

June 2007

Authors:

Bong Ju Lee, Seung Hyun Jang, Hong Lae Sohn

Keywords:

DBR Porous Silicon, Organophosphate Compounds

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] H. Sohn, S. Letant , M. J. Sailor and W. C. Trogler: J. Am. Chem. Soc. Vol. 122 (2000), p.5399.

Google Scholar

[2] C. Pacholski, M. Sartor, M. J. Sailor, F. Cunnin and G. M. Miskelly, J. Am. Chem. Soc. Vol. 127 (2005), p.11636.

Google Scholar

[3] L. T. Canham, M. P. Stewart, J. M. Buriak, C. L. Reeves, M. Anderson, E. K. Squire, P. Allcock and P. A. Snow, Phys. Status Solidi A. Vol. 128 (2000), p.521.

DOI: 10.1002/1521-396x(200011)182:1<521::aid-pssa521>3.0.co;2-7

Google Scholar

[4] V. Lehmann, R. Stengl, H. Reisinger, R. Detemple and W. Theiss, Appl. Phys. Lett. Vol. 78 (2001), p.589.

DOI: 10.1063/1.1334943

Google Scholar

[5] J. Dorvee and M. J. Sailor, Phys. Stat. Sol. Vol. 202 ( 2005), p.1619.

Google Scholar

[6] M. S. Nieuwenhuizen and J. L. N. Harteveld, Sens. Actuators B. Vol. B40 (1997), p.167.

Google Scholar

[7] D. Williams and G. Pappas, Field Anal. Chem. Chem. Technol. Vol. 3 (1999), p.45.

Google Scholar

[8] K. E. LeJeune, J. R. Wild and A. J. Russell, Nature. Vol. 395 (1998), p.27.

Google Scholar

[9] E. S. Snow, F. K. Perkins, E. J. Houser, S. C. Badescu, and T. L. Reinecke, Science. Vol. 307 (2005), p. (1942).

Google Scholar

[10] N. Taranenko, J. -P. Alarie, D. L. Stokes and T. Vo-Dinh, J. Raman Spectrosc. Vol. 27 (1996), p.379.

Google Scholar

[11] A. R. Hopkins and N. S. Lewis, Anal. Chem. Vol. 73 (2001), p.884.

Google Scholar

[12] S. E. Letant, S. R. Kane, B. R. Hart, M. Z. Hadi, T. -C. Cheng, V. K. Rastogi and J. G. Reynolds, Chem. Commun., Issue 7 (2005), p.851.

Google Scholar