Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
76286 | Microporous and Mesoporous Materials | 2007 | 7 Pages |
Abstract
This work describes the encapsulation of N,N′-bis(2-phosphonoethyl)-3,4,9,10-perylenetetracarboxylic diimide (PPDI), a water-soluble perylene dye, in the channels of mesoporous silica MCM-41. The incorporation of the dye was achieved by stirring MCM-41 with aqueous solutions of PPDI. The solid material obtained by this process exhibited a red fluorescence. Diffuse reflectance and emission spectra of the fluorescent powder suggested a highly organized arrangement with the PPDI molecules self-assembled in a 1D stack inside the channels of the mesoporous silica. The new materials described here have potential applications as nanoscale optoelectronic devices, such as conducting nanowires and fluorescent gas sensors.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Francisco Laerte de Castro, Jean Gustavo Santos, Glauber José Turolla Fernandes, Antônio Souza de Araújo, Valter José Fernandes Jr., Mário José Politi, Sergio Brochsztain,