One-Dimensional Antenna Systems by Crystallization Inclusion of Dyes (One-Pot Synthesis) within Zeolitic MgAPO-36 Nanochannels

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• 作者：Raquel Garc铆a ; Virginia Mart铆nez-Mart铆nez ; Rebeca Sola Llano ; I帽igo L贸pez-Arbeloa ; Joaqu铆n P茅rez-Pariente
• 刊名：Journal of Physical Chemistry C
• 出版年：2013
• 出版时间：November 14, 2013
• 年：2013
• 卷：117
• 期：45
• 页码：24063-24070
• 全文大小：396K
• 年卷期：v.117,no.45(November 14, 2013)
• ISSN：1932-7455

文摘

The nanopores of magnesium aluminophosphate MgAPO-36 (ATS structure) favor the formation of J-type aggregates in dyes with a general molecular skeleton of three fused aromatic rings. The particular distribution of these J-aggregate species and monomers, in a practically collinear disposition along the 1D-channels, allows an efficient transfer of electronic energy by dipole鈥揹ipole interaction. In order to achieve a material susceptible to be used as an artificial photonic antenna, covering a broader range of the UV鈥搗is light spectrum and available by one-pot synthesis, the fluorescing dye acridine (AC) is occluded for the first time within MgAPO-36, both alone and with different ratios of the fluorescing dye Pyronine Y (PY). The one-dimensional energy-transfer process between the different chromophores and between the monomers and their red-shifted J-aggregates is controlled by the total concentration of dyes and their relative AC:PY ratio in the matrix. In the optimized AC:PY concentrations, the wavelength range antenna action is extended from near-UV to about 700 nm, transporting the light energy through the whole visible spectrum (blue to green to red) and spatially, from end to the end of the crystals.