Sensing nitrogen oxide gas is important for measuring pollution gas and detecting pollution sources from vehicles and chemical processes in the atmosphere and for diagnosing the diseases of human body by measuring NO2 gas from breathing. Therefore, it is necessary to measure the range of dilute concentration and to develop a less power-consuming electrochemical method.
Kim Yong Hyok, a researcher at the Faculty of Electronics, has designed the structure of a new NO2 gas sensor and conducted a qualitative analysis of its performance. In addition, he has established its manufacturing process and experimentally analyzed the bias voltage properties.
The new sensor can linearly sense NO2 gas of up to 100ppm.