Photoluminescent oxygen sensing using palladium tetrakis(4-carboxyphenyl)porphyrin self-assembled membrane on alumina
Photoluminescent oxygen sensing using palladium tetrakis(4-carboxyphenyl)porphyrin self-assembled membrane on alumina
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DOI：
10.1039/a900721k
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发表时间：
1999-05-01
期刊：
影响因子：
--
通讯作者：
Okura, I
中科院分区：
文献类型：
--
作者：
Amao, Y;Asai, K;Okura, I
研制了一种基于四羧基苯基卟啉钯（PdTCPP）自组装膜在氧化铝板上的光致发光猝灭的光学氧传感器。PdTCPP膜的发光强度随氧浓度的增加而降低，表明该膜是一种对氧浓度高度敏感的器件。该膜的信号变化足够大，可以以良好的灵敏度（I-0/I-100 bbb3）定量氧气。传感器从氩气到氧气的响应时间为36秒，从氧气到氩气的响应时间为148秒。这是一种光稳定感测膜，在连续照射24小时后，其初始强度下降最小（约5%）。
An optical oxygen sensor based on the photoluminescent quenching of palladium tetrakis(4-carboxyphenyl)porphyrin (PdTCPP) self-assembled membrane on an alumina plate has been developed. The luminescence intensity of PdTCPP membrane decreased with increase of oxygen concentration, indicating that this membrane is a highly sensitive device for oxygen concentration. The signal changes of this membrane are large enough to allow quantification of oxygen with good sensitivity (I-0/I-100 > 3). The response times of the sensor are 36 s on going from argon to oxygen and 148 s from oxygen to argon. This is a photostable sensing membrane that exhibits minimal decrease (ca 5%) in initial intensity after continuous irradiation for 24 h.