Technology Report

In conclusion, the CO gas sensing performance and detection mechanism of the diamond-based sensor have been presented. It was shown why the dimond was chosen as an element to create the sensor. Also, the technique to make the sensor was explained. Using I-V characteristics as a function of gas concentration over a wide temperature range, it was clearly seen that the sensitivity of sensor is high, repeatable and reproducable. These results indicate that this microelectronic gas sensor can be applied to provide higher and faster response to oxidizing and reducing gases such as CO at higher and wider operating range thanthe ones that are currently used. Nevertheless, this mechanism is not ideal and could be possibly enhanced by reducing the warm up time and power consumption. REFERENCES: A new High Temperature Solid-State Microelectronic Carbon Monoxide Gas Sensor, [http] http://ieeexplore.ieee.org/Xplore Retrieved on 20/02/2009 A.Arbab, A. Spetz, I.Lunstrom, Sensor and Actuators B, 15-16, 19 (1993) C.A. Papadopoulos, J.N. Avaritsiotis, Sensors and Actuators, B28, 20 (1995) I.Lunstrom, M.S. Shivaraman, C.Svensson, and L. Lundkvist, Application Physics.Ltt,26,55 (1975) P.F. Ruth, S.Ashok, S.J.Fonash and J.M.Ruth, IEEE Trans. Electron Devices, ED-28, 1003 (1981) W.P.Kang, C.K.Kim, Sensors and Actuators B, 13-14,682 (1993) Wiegleb, G. Stein, C. Knaup, G. Plotz, F., New low cost infrared gas sensor for domestic and automotive applications, German Patent Application No. 10 2004 028 023, 2004 [http] http://www.smartgas.eu/fileadmin/Publikationen Retrived on 25/02/2009 APPENDIX {draw:g} Figure1-Diamond-based CAIS sensor {draw:frame} {draw:frame} {draw:frame} Figure 4-The relationship of current and time showing repeatibility, reproducibility and response .