Spectral properties of rhodamine 6G in smectite dispersions: Effect of the monovalent cations

Czı́merová, Adriana; Jankovič, Ľuboš; Bujdák, Juraj

doi:10.1016/j.jcis.2011.01.069

Cited by 20 publications

(17 citation statements)

References 80 publications

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“…The incorporation into the nanocolumnar film of a luminescent or alternative guest molecule with specific functionality [246] presents some similarities with conventional synthesis routes utilized for the sol-gel method [508][509][510] and wet-chemistry processes [511] used in the fabrication of hybrid luminescent materials. In these hybrid OAD films, however, functional molecules are anchored to the chemical functionalities of oxide surfaces (e.g., the -OH groups in TiO 2 or SiO 2 nanoporous films) either electrostatically [243,246,512] or by forming covalent bonds [244].…”

Section: Luminescent Filmsmentioning

confidence: 99%

Perspectives on oblique angle deposition of thin films: From fundamentals to devices

Barranco

Borrás

González‐Elipe

et al. 2016

Progress in Materials Science

603

436

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a b s t r a c tThe oblique angle configuration has emerged as an invaluable tool for the deposition of nanostructured thin films. This review develops an up to date description of its principles, including the atomistic mechanisms governing film growth and nanostructuration possibilities, as well as a comprehensive description of the applications benefiting from its incorporation in actual devices. In contrast with other reviews on the subject, the electron beam assisted evaporation technique is analyzed along with other methods operating at oblique angles, including, among others, magnetron sputtering and pulsed laser or ion beam-assisted deposition techniques. To account for the existing differences between deposition in vacuum or in the presence of a plasma, mechanistic simulations are critically revised, discussing well-established paradigms such as the tangent or cosine rules, and proposing new models that explain the growth of tilted porous nanostructures. In the second part, we present an extensive description of applications wherein oblique-angle-deposited thin films are of relevance. From there, we proceed by considering the requirements of a large number of functional devices in which these films are currently being utilized (e.g., solar cells, Li batteries, electrochromic glasses, biomaterials, sensors, etc.), and subsequently describe how and why these nanostructured materials meet with these needs.

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Section: Luminescent Filmsmentioning

confidence: 99%

Perspectives on oblique angle deposition of thin films: From fundamentals to devices

Barranco

Borrás

González‐Elipe

et al. 2016

Progress in Materials Science

603

436

View full text Add to dashboard Cite

show abstract

“…From the practical point of view, the suppressing the aggregation is one of the most important task for the preparation of solid‐type lasers. The formation of nonluminescence aggregates is rather an undesirable process, limiting the photoactive properties (e.g., high emission intensity, high quantum yield) of perspective photofunctional materials …”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, the J ‐aggregates with a head‐to‐tail intermolecular structure absorb light at lower energies than the corresponding dye monomers. The formation as well as a size of the aggregates depends on the characteristics of clay minerals, for example, distribution and size of layer charge, composition of the clay, pH, dye loading and concentration, type of the exchangeable cations, and so forth . The main difference between the two forms affecting their prospective practical applications is in their luminescence properties.…”

Section: Introductionmentioning

confidence: 99%

Unique photoactive nanocomposites based on rhodamine 6G/polymer/montmorillonite hybrid systems

Czı́merová

Jankovič

Madejová

et al. 2013

J Polym Sci B Polym Phys

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An organo-montmorillonite (MMT) complex [polydiallyldimethyl(PDDA)-Kunipia F] with various loadings of polycation was modified with a laser dye Rhodamine 6G (R6G) to obtain a photofunctional hybrid materials for monitoring of dyepolymer-MMT nanocomposite interactions. The polymer-MMTs were prepared in a colloidal state via ion-exchange reaction. The content of polycation (PDDA) in suspensions varied from 20 mg to 1000 mg per 1 g of Kunipia F (KF) MMT. Dramatic changes was observed in the structure of PPDA-MMT containing 200-300 mg of polymer per 1 g of KF, which was the saturation point of the polycation for this system. The PDDA molecules were able to suppress the formation of nonluminescent H-aggregates and to enhance the overall luminescence properties. The PDDA=MMT nanocomposite systems are the novel ones that have not been studied before in order to prepare highly fluorescence hybrid systems.

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“…1, Table 3). This is in contrast to the aqueous colloids of smectites originally bearing inorganic cations [23]. Such systems are frequently based on aggregated R6G and exhibit poor fluorescence efficiencies [21,24,25].…”

Section: Absorption Spectra Of Rhodamine 6g/organoclays In Xylenementioning

confidence: 93%

Highly fluorescent colloids based on rhodamine 6G, modified layered silicate, and organic solvent

Bujdák

Iyi

2012

Journal of Colloid and Interface Science

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Spectral properties of rhodamine 6G in smectite dispersions: Effect of the monovalent cations

Cited by 20 publications

References 80 publications

Perspectives on oblique angle deposition of thin films: From fundamentals to devices

Perspectives on oblique angle deposition of thin films: From fundamentals to devices

Unique photoactive nanocomposites based on rhodamine 6G/polymer/montmorillonite hybrid systems

Highly fluorescent colloids based on rhodamine 6G, modified layered silicate, and organic solvent

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