配位錯合物之光學與電學性質應用於化學感測器之研究

Abstract

本研究主要探討自製與市售的配位錯合物的光學與電學性質。在室溫中將2,4,6-tris(phosphorylmethyl)mesitylene或1,2,4,5-tetrakis(phosphorylmethyl)benzene、1,10-phenanthroline與六水合氯酸鎘經擴散法得到CdP3與CdP4。由於前驅物與錯合物都具有螢光，故將CdP3與CdP4加入有選擇性的鋅離子，以不同濃度去偵測螢光強度。Ru(ddp)本身具有螢光，故常作為螢光偵測器。為了實現在螢光儀中觀察固體錯合物測定有機氣體時所發生的變化，因此將Ru(ddp)混和PDMS做成薄膜，以頂空法抽取飽和氣體，觀察螢光光譜的差異。接著再以實驗室自組的螢光感測器搭配氣體生成系統去測定有機氣體。最後將單層奈米碳管與Ru(ddp)混和滴在碳電極上，利用氣體生成系統共測定10種有機氣體，觀察到奈米碳管通入butanol時反應最好，在112 ppm有0.152%的響應值 (Response)，則奈米碳管@ Ru(ddp)對octane具有高度的反應，在706 ppm有1.94%響應值。值得注意的是，有混和Ru(ddp)的奈米碳管對所有的有機氣體之Response比奈米碳管佳，所以Ru(ddp)能增加奈米碳管的靈敏度。

This study mainly investigates the optical and electrical properties of self-made and commercially available coordination complexes. CdP3 and CdP4 were obtained by diffusing 2,4,6-tris(phosphorylmethyl)mesitylene or 1,2,4,5-tetrakis(phosphorylmethyl)benzene, 1,10-phenanthroline, hexahydrate and cadmium chlorate at room temperature. Since both the precursor and the complex have fluorescent, CdP3 and CdP4 are added with selective zinc ions to detect the fluorescence intensity at different concentrations.Ru(ddp) itself is fluorescent, so it is often used as a fluorescent detector. In order to observe the changes that occur when solid complexes are measured in a fluorometer and determine organic gases, Ru(ddp) mixed with PDMS to make a thin film, the saturated gas was extracted by the headspace method to observe the difference in the fluorescence spectrum. Then, the laboratory self-assembled fluorescent sensor and gas generation system were used to measure organic gases.Finally, the single-layer carbon nanotubes were mixed with Ru(ddp) and dropped on the carbon electrode, and a total of 10 kinds of organic gases were measured by the gas generation system. It is observed that carbon nanotubes have the best response when they are fed into butanol, and there is a response value of 0.152% at 112 ppm, and then carbon nanotubes @ Ru(ddp) have a high degree of response to octane, with 1.94% at 706 ppm. It is worth noting that carbon nanotubes mixed with Ru(ddp) have a better response to all organic gases than carbon nanotubes, so Ru(ddp) can increase the sensitivity of carbon nanotubes.