论文信息 - Novel optical oxygen sensing material: 1-pyrenedecanoic acid and perfluorodecanoic acid chemisorbed onto anodic oxidized aluminium plate

Novel optical oxygen sensing material: 1-pyrenedecanoic acid and perfluorodecanoic acid chemisorbed onto anodic oxidized aluminium plate

Abstract Oxygen sensing properties of optical sensor using layer of 1-pyrenedecanoic acid and perfluorodecanoic acid chemisorbed onto anodic oxidized aluminium plate was investigated. The ratio I 0 / I 100 , where I 0 and I 100 represent the detected fluorescence intensities from a substrate exposed to 100% argon and 100% oxygen, respectively, is used as an indicator of the sensitivity of the sensing film. The I 0 / I 100 value of 1-pyrenedecanoic acid and perfluorodecanoic acid layer chemisorbed onto the anodic oxidized aluminium plate is estimated to be 18.6. On the other hand, the I 0 / I 100 value of 1-pyrenedecanoic acid chemisorbed onto the anodic oxidized aluminium plate is 20.2. The response time of the 1-pyrenedecanoic acid layer is 8.5 s on going from argon to oxygen and the recovery time is 40 s on going from oxygen to argon, respectively. In contrast, the response and recovery times of the 1-pyrenedecanoic acid and perfluorodecanoic acid chemisorbed layer are 3.0 and 22 s, respectively. Thus, the optical oxygen sensor using 1-pyrenedecanoic acid and perfluorodecanoic acid chemisorbed layer has rapid response and recovery times.

Y. Amao | Yutaka Amao | Yuki Fujiwara | Y. Fujiwara

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