期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 10, 期 4, 页码 831-839出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200305436
关键词
fluorescence; nanostructures; porphyrinoids; self-assembly; surface chemistry
The formation of micrometer-sized, highly ordered porphyrin rings on surfaces has been investigated. The porphyrin-based nanoarchitectures are formed by deposition from evaporating solutions through a surface dewetting process which can be tuned by variations in the substitution pattern of the molecules used, the coating of the surface and the conditions under which the evaporation takes place. Control over the combined self-assembly and surface dewetting results in nanorings possessing a defined internal architecture. The ordering of the molecules within the rings has been studied by a variety of microscopy techniques (TEM, AFM, fluorescence microscopy) and the exact ordering of the porphyrins within the rings has been quantified.
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