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

Calzaferri, Gion; Méallet‐Renault, Rachel; Brühwiler, Dominik; Pansu, Robert; Dolamic, Igor; Dienel, Thomas; Adler, Pauline; Li, Huanrong; Kunzmann, Andreas

doi:10.1002/cphc.201000947

Cited by 102 publications

(113 citation statements)

References 144 publications

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“…This is a technical challenge in devices employing molecular chromophores, as they tend to aggregate and form quenching states as intermolecular spacing decreases. [13][14][15][16] As such, preventing dye aggregation is of key importance for designing fluorescent organic materials which employ FRET. 17,18 Perylene-diimides (PDIs) have found applications in light harvesting systems, organic electronic devices and LSCs due to their range of hues from red to violet, excellent solvent stability, high degree of chemical inertness, and superior thermal stability.…”

Section: Introductionmentioning

confidence: 99%

Energy transfer in pendant perylene diimide copolymers

et al. 2016

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We report the synthesis, characterisation and polymerisation of two novel asymmetric perylene diimide acrylate monomers. The novel monomers form a sensitiser-acceptor pair capable of undergoing Förster resonance energy transfer, and were incorporated as copolymers with tert-butyl acrylate. The tert-butyl acrylate units act as spacers along the polymer chain allowing high concentrations of dye while mitigating aggregate quenching, leading to persistent fluorescence in the solid state at high concentrations of up to 0.3 M. Analysis of fluorescence kinetics showed efficient energy transfer between the optically dense sensitiser and the lower concentration acceptor luminophores within the polymer. This reduced reabsorption within the material demonstrates that the copolymer-scaffold energy transfer system has potential for use in luminescent solar concentrators.

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Section: Introductionmentioning

confidence: 99%

Energy transfer in pendant perylene diimide copolymers

et al. 2016

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“…1 The regular pore systems of nanometric openings exhibited by the framework make zeolites ideal host matrices for achieving supramolecular organization of photoactive species, leading to versatile building blocks for the realization of hierarchically organized multifunctional composite materials. 1,2,3 Microlasers, pigments, optical switches, or artificial antenna systems are only few of the possible applications of these fascinating systems. 4,5,6,7,8,9,10 To date, different zeolites with suitable channel dimensions, such as AlPO4-5, 11,12 zeolite Y, 13 zeolite L, 14,15 as well as mesoporous materials like MCM-41, 16 have been successfully adopted as nanosized host matrices for the synthesis of these composites.…”

Section: Introductionmentioning

confidence: 99%

Close-Packed Dye Molecules in Zeolite Channels Self-Assemble into Supramolecular Nanoladders

et al. 2014

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A tough challenge in nanomaterials chemistry is the determination of the structure of multicomponent nanosystems. Dye-zeolite L composites are building blocks of hierarchically organized multifunctional materials for technological applications. Supramolecular organization inside zeolite L nanochannels, which governs electronic properties, is barely understood. This is especially true for confined close-packed dye molecules, a regime not investigated in applications yet and that might have great potential for future development in this field. Here we realize for the first time composites of zeolite L with maximally-packed fluorenone molecules and elucidate their structure by integrated multi-technique analyses. By IR, thermogravimetric and X-ray diffraction we establish the maximum degree of dye loading obtained (1.5 molecules per unit cell) and by modeling we reveal that at these conditions fluorenone molecules form quasi 1-D supramolecular nanoladders running along the zeolite channels. Spatial and morphological control provided by the nanoporous matrix combined with a complex blend of strong dye-zeolite and weaker dye-dye van der Walls interactions lie at the origin of this unique architecture, which is also stabilized by the hydrogen bond network of co-adsorbed water molecules surrounding the dye nanoladder and penetrating between its rungs.

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“…5−7 The photoprocesses of these systems are induced by nanostructured functional materials, such as zeolites light sensitized by dye molecules adsorbed into their pores allowing for the supramolecular organization of the photoactive species. Neutral and cationic dye molecules were successfully incorporated into various zeolites with suitable channel dimensions, such as AlPO 4 -5, 8,9 zeolite Y, 10 and zeolite L 11,12 as well as mesoporous materials like MCM-41. 13 Zeolite L (ZL) presents itself as an ideal host matrix because its arrays of parallel channels impose severe space restrictions and geometrical constraints to any inserted guest species, leading to very high concentrations of well-oriented dye molecules.…”

Section: Introductionmentioning

confidence: 99%

Thionine Dye Confined in Zeolite L: Synthesis Location and Optical Properties

et al. 2015

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The process of light conversion is at present deeply investigated to develop more efficient devices for artificial photosynthesis, water splitting, photovoltaic applications, and targeting therapeutic agents. This process is induced by nanostructured functional materials, such as zeolites light sensitized by dye molecules adsorbed into their pores. Here a detailed study of the organization of the cationic dye thionine (Th) inserted into the linear 12MR channels of zeolite L is carried out by XRPD, FT-IR spectroscopyfor the determination of the host−guest interactionsand UV−vis absorption and photoluminescence spectroscopies for the investigation of the electronic states of the guest. Two composites with different Th loading (labeled ZL/0.15Th and ZL/0.27Th) were obtained through ion exchange. TGA spectra and IR-ATR spectroscopy clearly indicated penetration of Th molecules into the ZL channels. Rietveld structural refinement showed that Th molecules in both composites are aligned parallel to the 12MR channel axis and located on the mirror planes parallel to the c-axis. Water molecules interact strongly with the dye and form a kind of solvent−matrix tube shaped around the Th molecule, favoring the upright arrangement of the molecules. DR−UV−vis spectra of the ZL/Th composites indicated that Th molecules are hosted in the ZL channels in a monomeric form. Photoluminescence spectroscopy demonstrated that photoluminescent dyes correspond to ca. 5% of the total amount of Th molecules in the zeolite porosities. While most of the photoluminescent Th molecules exhibit a lifetime equivalent to Th in solutions, the complementary fraction of photoluminescent Th exhibit significantly longer lifetimes, resulting from an entrapment in defects of the zeolite structure, inducing strong rotational constraints to the molecules.

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

Cited by 102 publications

References 144 publications

Energy transfer in pendant perylene diimide copolymers

Energy transfer in pendant perylene diimide copolymers

Close-Packed Dye Molecules in Zeolite Channels Self-Assemble into Supramolecular Nanoladders

Thionine Dye Confined in Zeolite L: Synthesis Location and Optical Properties

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