Microcontact Transfer Printing of Zeolite Monolayers

Cucinotta, Fabio; Popović, Zoran D.; Weiss, Emily A.; Whitesides, George M.; Cola, Luisa De

doi:10.1002/adma.200801751

Cited by 54 publications

(51 citation statements)

References 33 publications

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“…8 [4]. A possibility of achieving a higher level of organization is the controlled assembly of the zeolite crystals into oriented structures and the preparation of monodirectional materials [4], [6,7], [47], [50][51][52]. The usually strong light scattering of zeolite L can be suppressed by refractive index matching and avoidance of microphase separation in hybrid polymer/dye-zeolite L materials [53].…”

Section: Artificial Antenna Systemsmentioning

confidence: 99%

“…The layers must be prepared such that the channels are open in the direction of the photoactive surface and that they are well connected to the back electrode which consists of a thin gold layer e.g., coated on glass. Such experiments are now feasible because much progress has been made in the preparation of zeolite monolayers [6][7][8], [47], [50,51], [82].…”

Section: Photocatalytic and Photoelectrochemical Water Splittingmentioning

confidence: 99%

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Artificial Photosynthesis

Calzaferri

2009

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One-dimensional channel materials, such as zeolites and mesoporous silicas, are very attractive hosts for the preparation and investigation of hierarchically organized structures, presenting a successive ordering from the molecular up to macroscopic scale. The focus of this article is on artificial photonic antenna systems and on photocatalytically active layers that have been built by incorporating organic dyes, complexes, metal cations and clusters into 1-D nanochannel materials. We show that zeolite L as a host material allows for the design and preparation of a large variety of highly organized hostguest systems. The combination of a tuneable host morphology and the possibility of obtaining highly organized molecular patterns of guests leads to a variety of potential optical and photoelectronic applications. Strongly absorbing systems exhibiting efficient FRET along the c-axis of the zeolite crystals are accessible by sequential inclusion of multiple types of dyes. These new light-harvesting materials offer unique possibilities as building blocks for solarenergy conversion devices. A complementary approach consists in integrating photochemically active substances into zeolite monolayers coated on an electrode and taking advantage of intrazeolite processes for designing a reversible electrode for photocatalytic water oxidation. The photoelectrochemical water splitting capability of systems based on Ag ? /AgCl/Ag n -zeolite photoanodes are discussed.

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Section: Artificial Antenna Systemsmentioning

confidence: 99%

Section: Photocatalytic and Photoelectrochemical Water Splittingmentioning

confidence: 99%

Artificial Photosynthesis

Calzaferri

2009

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“…[3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] These are currently investigated for applications in different fields, ranging from sensing in analytical chemistry, biology, and diagnostics, [15][16][17][18] to applications in optical and electro optical devices [3][4][5][19][20][21] and extending to solar energy utilization, e.g. in the form of luminescent solar concentrators.…”

Section: Introductionmentioning

confidence: 99%

First-principles simulation of the absorption bands of fluorenone in zeolite L

Zhou

Wesołowski

Tabacchi

et al. 2013

Phys. Chem. Chem. Phys.

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The absorption spectrum of fluorenone in zeolite L is calculated from first-principles simulations. The broadening of each band is obtained from the explicit treatment of the interactions between the chromophore and its environment in the statistical ensemble. The comparison between the simulated and measured spectra reveals the main factors affecting the spectrum of the chromophore in hydrated zeolite L. Whereas each distinguishable band is found to originate from a single electronic transition, the bandwidth is determined by the statistical nature of the environment of the fluorenone molecule. The K + Á Á ÁOQC motif is retained in all conformations. Although the interactions between K + and the fluorenone carbonyl group result in an average lengthening of the CQO bond and in a redshift of the lowest energy absorption band compared to gas phase or non-polar solvents, the magnitude of this shift is noticeably smaller than the total shift. An important factor affecting the shape of the band is fluorenone's orientation, which is strongly affected by the presence of water.The effect of direct interactions between fluorenone and water is, however, negligible.

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“…[126] For zeolites, however, only few studies have reported on a successful direct deposition on surfaces, but the deposition of monolayers of zeolite-platelets on appropriately functionalized substrates by m-contact printing has been demonstrated. [127] 8. Outlook…”

Section: Functionalization Of Surfaces By Deposition Of Porous Thin Fmentioning

confidence: 99%