Self-quenching of a photo-excited ruthenium complex in component-controllable mixed Langmuir-Blodgett films |
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Authors: | Gang Zou Weixing Lu |
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Affiliation: | Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, Anhui, PR China |
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Abstract: | The miscibility and phase behavior of the mixed monolayer of Ru(dpphen)32+ (dpphen=4,7-diphenyl-1,10-phenanthroline) (abbreviated as Ru(II)), octadecyltrichlorosilane (OTS) and stearic acid (SA) at air/water interface had been investigated in detail. Two-dimensional density of Ru(II) could be easily adjusted by changing the mixing ratio of Ru(II)/SA/OTS. The mixed monolayer of Ru(II)/SA/OTS with different molar proportions had been deposited and characterized by low angle X-ray diffraction, UV-visible absorption spectra and photo-induced emission spectra. The possible structure of its resulting LB film was proposed based on the results of the π-A isotherms and low angle X-ray diffraction. Photo-induced electron transfer and self quenching of Ru(II) in mixed LB films had been investigated in detail. |
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Keywords: | Ruthenium Monolayer Langmuir-Blodgett films Photon emission |
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