Green luminescent iridium(III) complex immobilized in fluoropolymer film as optical oxygen-sensing material
Green luminescent iridium(III) complex immobilized in fluoropolymer film as optical oxygen-sensing material
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DOI：
10.1016/s0003-2670(01)01254-5
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发表时间：
2001-10-31
影响因子：
6.2
通讯作者：
Okura, I
中科院分区：
文献类型：
--
作者：
Amao, Y;Ishikawa, Y;Okura, I
基于三（2-苯基吡啶阴离子）铱（EII）配合物（[Ir（ppy）（3）]）固定在含氟聚合物聚（苯乙烯-co-2，2，2-三氟乙基甲基丙烯酸酯）（poly（styrene-co-TFEM））膜上的发光强度变化，研制了一种光学氧传感器。[Ir（ppy）（3）]的发光强度随氧浓度的增加而降低。聚（苯乙烯-共-TFEM）膜中的[Ir（ppy）（3）]的比值I-0/I-100（膜的灵敏度，其中I-0和I-100分别表示从暴露于100%氩气和100%氧气的膜检测到的发光强度）值估计为15.3。[Ir（ppy）（3）]膜的Stern-Volmer曲线显示出相当大的线性（r（2）= 0.998），Stern-Volmer常数K-SV估计为0.02 Torr（-1），表明使用固定在聚（苯乙烯-co-TFEM）膜中的[Ir（ppy）（3）]开发了高灵敏度的氧传感器。(C)2001 Elsevier Science B. V.保留所有权利。
An optical oxygen sensor based on the luminescence intensity changes of tris(2-phenylpyridine anion) iridium(Ell) complex ([Ir(ppy)(3)]) immobilized in fluoropolymer, poly(styrene-co-2,2,2-trifluoroethyl methacrylate) (poly(styrene-co-TFEM)) film was developed. The luminescence intensity of [Ir(ppy)(3)] in poly(styrene-co-TFEM) film decreased with increase of oxygen concentration. The ratio I-0/I-100 (a sensitivity of the film, where I-0 and I-100 represent the detected luminescence intensities from a film exposed to 100% argon and 100% oxygen, respectively) value of [Ir(ppy)(3)] in poly(styrene-co-TFEM) film is estimated to be 15.3. A Stern-Volmer plot of the [Ir(ppy)(3)] film exhibited considerable linearity (r(2) = 0.998) and the Stern-Volmer constant, K-SV is estimated to be 0.02 Torr(-1), indicating that a highly sensitive oxygen sensor is developed using [Ir(ppy)(3)] immobilized in poly(styrene-co-TFEM) film. (C) 2001 Elsevier Science B.V. All rights reserved.