Solubilisation of dye-loaded zeolite L nanocrystals

Devaux, A.; Popović, Zoran D.; Bossart, Olivia; Cola, Luisa De; Kunzmann, Andreas; Calzaferri, Gion

doi:10.1016/j.micromeso.2005.07.025

Cited by 45 publications

(30 citation statements)

References 13 publications

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“…Suppression of light scattering of zeolite based materials demands usually surface modification of the objects by some covalent binding of molecules, for example, dimethylmethoxyn-octylsilane, so that microphase separation upon embedding in a refractive index matching medium such as toluene, p-xylene, ethyl benzoate or a polymer is avoided. [15,[73][74][75] Care has to be taken that the guests are not washed out by the applied solvent and that the latter does not show disturbing luminescence. This is in many cases not practical for laboratory experiments.…”

Section: A Simple Antenna Systemmentioning

confidence: 99%

“…The usually strong light scattering of ZL can be suppressed by refractive index matching and avoidance of microphase separation in hybrid polymer/dye-ZL materials. [15,[73][74][75] The fluorescence efficiency and photostability of dyes with relaxation mechanisms caused by large amplitude motions are usually enhanced upon insertion into the narrow channels of ZL, which acts as a rigid environment. Also, quenching caused Figure 7.…”

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confidence: 99%

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Designing Dye–Nanochannel Antenna Hybrid Materials for Light Harvesting, Transport and Trapping

et al. 2011

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We discuss artificial photonic antenna systems that are built by incorporating chromophores into one-dimensional nanochannel materials and by organizing the latter in specific ways. Zeolite L (ZL) is an excellent host for the supramolecular organization of different kinds of molecules and complexes. The range of possibilities for filling its one-dimensional channels with suitable guests has been shown to be much larger than one might expect. Geometrical constraints imposed by the host structure lead to supramolecular organization of the guests in the channels. The arrangement of dyes inside the ZL channels is what we call the first stage of organization. It allows light harvesting within the volume of a dye-loaded ZL crystal and also the radiationless transport of energy to either the channel ends or center. One-dimensional FRET transport can be realized in these guest-host materials. The second stage of organization is realized by coupling either an external acceptor or donor stopcock fluorophore at the ends of the ZL channels, which can then trap or inject electronic excitation energy. The third stage of organization is obtained by interfacing the material to an external device via a stopcock intermediate. A possibility to achieve higher levels of organization is by controlled assembly of the host into ordered structures and preparation of monodirectional materials. The usually strong light scattering of ZL can be suppressed by refractive-index matching and avoidance of microphase separation in hybrid polymer/dye-ZL materials. The concepts are illustrated and discussed in detail on a bidirectional dye antenna system. Experimental results of two materials with a donor-to-acceptor ratio of 33:1 and 52:1, respectively, and a three-dye system illustrate the validity and challenges of this approach for synthesizing dye-nanochannel hybrid materials for light harvesting, transport, and trapping.

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Section: A Simple Antenna Systemmentioning

confidence: 99%

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confidence: 99%

Designing Dye–Nanochannel Antenna Hybrid Materials for Light Harvesting, Transport and Trapping

et al. 2011

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“…This principle has already been successfully used to improve the dispersability of zeolite L in different solvents by grafting alkoxysilane derivatives to the crystal surface. [17] The properties of dye-zeolite L systems outlined above make them very desirable for the development of novel optical materials, like lenses, infrared plastic light-emitting diodes for use in telecommunications, dye nanostructured materials for optical data storage, or for improvement of a polymer's chemicalphysical properties. [18][19][20][21] For many of these optical applications, the host-guest systems have to be inserted into a polymer matrix while maintaining transparency in the visible range.…”

Section: Introductionmentioning

confidence: 99%

Transparent Zeolite–Polymer Hybrid Materials with Adaptable Properties

Suárez

Devaux

Bañuelos

et al. 2007

Adv Funct Materials

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We report here on a simple preparation procedure for highly transparent zeolite‐polymer hybrid materials and polymer covered zeolite L monolayers. Wrapping up zeolites containing, e.g., dye molecules as guest species with alkoxysilane derivatives results in an efficient dispersion of the nano particles into the organic liquid monomer. The following copolymerisation process leads to a hard, insoluble and transparent material containing zeolites. Optical properties such as colour, luminescence, refractive index or photochromism can be adapted by simply changing the type and amount of the guest in the zeolite crystals, while transparency is maintained.

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“…Besonders geeignet sind in Zeolith-Nanopartikel eingelagerte fluoreszierende Farbstoffe [72,73], wenn deren Fluoreszenzsignal durch die nachzuweisenden Gase selektiv gequencht wird. Solche Fluoreszenzfarbstoff/Zeolith-Komposit-Systeme eignen sich beispielsweise als Biolabel [74], da sie in Zellen oder Makrophagen eingebaut werden können und beispielsweise, wie im Falle von Ru(bpy) 3…”

Section: In Nanoporen Stabilisierte Farbstoffeunclassified

Kompostite auf Basis von Zeolithen oder geordnet mesoporösen Oxiden für Anwendungen in der Photonik und Sensorik

Wark

2010

Chemie Ingenieur Technik

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Solubilisation of dye-loaded zeolite L nanocrystals

Cited by 45 publications

References 13 publications

Designing Dye–Nanochannel Antenna Hybrid Materials for Light Harvesting, Transport and Trapping

Designing Dye–Nanochannel Antenna Hybrid Materials for Light Harvesting, Transport and Trapping

Transparent Zeolite–Polymer Hybrid Materials with Adaptable Properties

Kompostite auf Basis von Zeolithen oder geordnet mesoporösen Oxiden für Anwendungen in der Photonik und Sensorik

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