White Light Emission by Simultaneous One Pot Encapsulation of Dyes into One-Dimensional Channelled Aluminophosphate

Author:

Sola-Llano Rebeca,Oliden-Sánchez AinhoaORCID,Alfayate Almudena,Gómez-Hortigüela LuisORCID,Pérez-Pariente Joaquín,Arbeloa Teresa,Hofkens Johan,Fron Eduard,Martínez-Martínez VirginiaORCID

Abstract

By simultaneous occlusion of rationally chosen dyes, emitting in the blue, green and red region of the electromagnetic spectrum, into the one-dimensional channels of a magnesium-aluminophosphate with AEL-zeolitic type structure, MgAPO-11, a solid-state system with efficient white light emission under UV excitation, was achieved. The dyes herein selected—acridine (AC), pyronin Y (PY), and hemicyanine LDS722—ensure overall a good match between their molecular sizes and the MgAPO-11 channel dimensions. The occlusion was carried out via the crystallization inclusion method, in a suitable proportion of the three dyes to render efficient white fluorescence systems by means of fine-tuned FRET (fluorescence resonance energy transfer) energy transfer processes. The FRET processes are thoroughly examined by the analysis of fluorescence decay traces using the femtosecond fluorescence up-conversion technique.

Funder

Gobierno Vasco

Publisher

MDPI AG

Subject

General Materials Science,General Chemical Engineering

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