ABSTRACT Recently ozone is one of natural hazards which comes from cars, industry using ozone for sterilization of organic and inorganic materials and for water purification. So, ozone sensing becomes very important, and convenient and accurate ozone sensor is required. A new high sensitivity ozone sensing system using an deep ultra-violet light emitting diode (DUV-LED) operated at the wavelength of 280 nm has been successfully constructed. The fabrication of diode operated at 280 nm is much easier than that of DUV-LED operated at Hg lamp wavelength of 254 nm. The system is compact and possible to sense the ozone concentration less than 0.1 ppm with an accuracy of 0.5% easily with low power DUV-LED of around 200 micro Watts operated at 280 nm without any data processing circuit.
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Y. Aoyagi, M. Takeuchi, K. Yoshida, M. Kurouchi, T. Araki, Y. Nanishi, H. Sugano, Y. Ahiko and H. Nakamura, "High-Sensitivity Ozone Sensing Using 280 nm Deep Ultraviolet Light-Emitting Diode for Detection of Natural Hazard Ozone," Journal of Environmental Protection, Vol. 3 No. 8, 2012, pp. 695-699. doi: 10.4236/jep.2012.38082.
 G. Kenanakis, D. Vernardou, E. Koudoumas, G. Kiriakidis and N. Katsarakis, “Ozone Sensing Properties of ZnO Nanostructures Grown by the Aqueous Chemical Growth Technique,” Sensors and Actuators, Vol. B124, No. 1, 2007, pp. 187-191.
 M. Suchea, N. Katsurakis, S. Christoulakis, S. Nikolopoulou and G. Kiriakidis, “Low Temperature Indium Oxide Gas Sensors,” Sensors and Actuators B: Chemical, Vol. 118, No. 1-2, 2006, pp. 135-141.
 J. Li, Q. Li, J. V. Dyke and P. K. Dasgupta, “Atmospheric Ozone Measurement with an Inexpensive and Fully Automated Porous Tube Collector-Colorimeter,” Talanta, Vol. 74, No. 4, 2008, pp. 958-964.
 R. Frycek, M. Jelinck, T. Kocourek, P. Fitl, M. Vrnata, V. Myskik and M. Vrbova, “Thin Organic Layers Prepared by MSPLE for Gas Sensor Application,” Thin Solid Films, Vol. 495, No. 1-2, 2006, pp. 308-311.
 S. Suzuki and K. Nagashima, “A Galvanic Solid-State Sensor for Monitoring Ozone and Nitrogen Dioxide,” Analytica Chimica Acta, Vol. 144, 1982, pp. 261-266.
 E. Trakhovsky, “Ozone Amount Determined by Transmittance Measurements in the Solar-Blind Ultraviolet Spectral Region,” Applied Optics, Vol. 24, No. 21, 1985, pp. 3519-3522. doi:10.1364/AO.24.003519
 L. M. Garrison, D. D. Doda and A. E. S. Green, “Total Ozone Determination by Spectroradiometry in the Middle Ultraviolet,” Applied Optics, Vol. 18, No. 6, 1979, pp. 850-855. doi:10.1364/AO.18.000850
 T. Takayanagi, X.-L. Su, P. K. Dasgupta and R. W. Shaw, “Chemiluminometric Measurement of Atmospheric Ozone with Photoactivated Chromotropic Acid,” Analytical Chemistry, Vol. 75, No. 21, 2003, pp. 5916-5925.
 S. O’Keeffe, C. Fitzpatrick and E. Lewis, “An Optical Fiber Based Ultra Violet and Visible Absorption Spectroscopy System for Ozone Concentration Monitoring,” Sensors and Actuators B: Chemical, Vol. 125, No. 2, 2007, pp. 372-378. doi:10.1016/j.snb.2007.02.023
 E. M. Weinstock, C. M. Schiller and J. G. Anderson, “In Situ Stratospheric Ozone Measurements by Long Path UV Absorption: Developments and Interpretation,” Journal of Geophysical Research, Atmospheres, Vol. 91, No. D4, 1986, pp. 5237-5248. doi:10.1029/JD091iD04p05237