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Photochemical energy transfer was examined on the flat clay surface. By the change of surrounding atmosphere, the molecular adsorption orientation angle of dyes can be modulated. It is turned out that the energy transfer efficiency between dyes can be controlled by the relative orientation change between dyes. The change of orientation factor and spectral overlap factor was the main factor to affect...
Novel tetra-cationic xanthene derivative (Flu) was synthesized. Its adsorption and photochemical behaviors on the clay surface were investigated. Fluorescence quantum yield (ϕ f ) and fluorescence lifetime were 0.50 and 2.9ns for Flu/clay complex. ϕ f of Flu was enough high (>0.1) even at high density conditions (0.080moleculesnm −2 ). It is supposed that the strong interaction...
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