Summary: | 碩士 === 國立交通大學 === 顯示科技研究所 === 102 === We use Poly(3-octylthiophene-2,5-diyl) as ammonia sensor material. It is made to high porous density vertical diode. We know the ammonia concentration from the variation current. The ammonia sensor has many advantages as below, high sensitivity (50 ppb), real-time detect at room temperature and low cost. VNJ-diode invented by our group can demonstrate the detection limit to ammonia as 50 ppb which is among the highest records of the world. The ammonia concentration is 278 ppb in health human and 745 ppb in cirrhotic patients.[1,2] Therefore we use the device on biology experiment.
We also investigate sophisticated breath-ammonia-related disease models. To enable the following human trials, a portable system is also established. At the same time, the sensing sensitivity delivered by various organic materials is also studied.
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