Optical gas sensing selectivity property of ruthenium (II)-metalloporphyrins Langmuir？Blodgett films

다국어 초록 (Multilingual Abstract)

This paper reports the study of the selectivity property of a metalloporphyrins derivative LangmuirBlodgett thin lm,n-octaethylporphine ruthenium (II) carbonyl (RuOEPCO), to several organic gas samples, namely the saturated vapor of acetone, 2-propanol, eth-anol and cyclohexane. The sensing sensitivity was based on the change in the optical property of the lm upon exposure to the gas sam-k = 514 nm, of the light source. It was observed that the thin lm exhibited excellentselectivity property to the gas samples by presenting clear dierences amongst its responses. The selectivity property of the thin lm wasfound to depend on the structure of the gaseous molecules of which the highest sensitivity was shown for the gaseous molecules withplanar structure, such as cyclohexane. The mechanism for the thin lms-gas interaction that promotes the selectivity characteristic is proposed.

참고문헌 (Reference)

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