CAJ | 학술논문

在叉指碳电极上采用原位制备的方法构筑了聚吡咯复合薄膜气敏传感器,对其在三甲基胺气氛中的电响应性能进行了研究.结果表明,对5.14×10-7mol/mL的三甲基胺,其敏感性可达3～6个数量级的变化, 远高于同等实验条件下酞菁、卟啉等及其氟代衍生物的气敏性.该薄膜传感器具有好的重现性和选择性,在室温下可用氮气完全恢复.
재차지탄전겁상채용원위제비적방법구축료취필각복합박막기민전감기,대기재삼갑기알기분중적전향응성능진행료연구.결과표명,대5.14×10-7mol/mL적삼갑기알,기민감성가체3～6개수량급적변화, 원고우동등실험조건하태정、계람등급기불대연생물적기민성.해박막전감기구유호적중현성화선택성,재실온하가용담기완전회복.
Polypyrrole composite film was formed on the interdigital carbon electrodes by in-situ polymerization to make a gas sensor. The electrical response to trimethylamine was investigated. The results indicate that the organic film has high sensitivity and rapid response to trimethylamine. The gas-sensitivity of polypyrrole composite film to trimethylamine of 5.14×10-7mol/mL, which is up to 3-6 orders of magnitude within 1 min, is much higher than those of phthalocyanine, porphyin, perylene and their fluorination derivatives. The sensor exhibits a good reproducibility as well as a good selectivity to analogy vapors while the film can be completely recovered with high-purity N2 at room temperature.