Temperature-dependent electron-transfer quenching of dye monomer fluorescence on octahedral silver bromide grains

Kietzmann, R.; Ehret, Anne; Spitler, Mark T.; Willig, F.

doi:10.1021/ja00058a045

Cited by 29 publications

(43 citation statements)

References 3 publications

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“…Dyestuff and pigment particles have been largely used in laser materials,1 optical disks,2 nano‐scale semiconductor devices,3 colorants for textile products, inks, and coatings 4. However, because of the respective inherent disadvantages of dyestuffs and pigments, they cannot meet the need for better performance and lower cost for an increasing number of applications.…”

Section: Introductionmentioning

confidence: 99%

Encapsulation of nano Disperse Red 60 via modified miniemulsion polymerization. I. Preparation and characterization

El-sayed

Kamel

Morsy

et al. 2012

J of Applied Polymer Sci

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Nanocolorant, nano Disperse Red 60, was successfully prepared via modified miniemulsion polymerization process. Transmission electron microscopy was employed to determine the droplet and particle sizes. The effects of the speed and the time of homogenization, the surfactant nature and its amount, the presence of dye, the initiator nature, and the presence of a crosslinker on the morphology and particle size of nanocolorant were studied. UV-vis absorption spectra of nanocolorant with respect to the commercial corresponding dye showed a hypsochromic shift confirming the decrease in particle size. Fourier transform infrared spectra proved the chemical composition of nanocolorant particles assisting the incorporation of the dye within the polystyrene particles.The monomer conversion, surface tension, and apparent sedimentation stability also were measured. The relative electrical conductivity of the suspension was used for determining the polymerization mechanism. The kinetic polymerization was investigated using a pseudofirst-order and it is found that the rate constant of polymerization equals 0.01358 min À1 . Zeta potential measurements were employed for miniemulsion which showed that it has good stability at all range of pH.Correspondence to: M. M. Kamel (mona_kamel_nrc@ yahoo.com).

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Section: Introductionmentioning

confidence: 99%

Encapsulation of nano Disperse Red 60 via modified miniemulsion polymerization. I. Preparation and characterization

El-sayed

Kamel

Morsy

et al. 2012

J of Applied Polymer Sci

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“…They are used in photography and information storage [1,2], in laser technology [3][4][5][6], optical disks as a recording media [7][8][9], in industrial paints for trapping of solar energy [10], in light harvesting systems of photosynthesis [11,12] and as photo-refractive materials [13]. Cyanine dyes are used as spectral sensitizers in photographic emulsions [14], probes for the physical state and membrane potential of liposomes and synthetic bilayers [15], as well as potential sensitizers for photodynamic therapy [16].…”

Section: Introductionmentioning

confidence: 99%

Steady-state fluorescence and photo-isomerization study of 1-methyl-4′-(p-N,N dimethyl-amino styryl) pyridinium iodide

Abdel-Halim

2011

Journal of Luminescence

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“…one with J-aggregates (upper curve) and the other[5] with isolated monomers of'a related dye (lower curve). Curves correspond to the Levich-Jortner electron transfer model including summation over many acceptor states.At higher temperatures the actual data set shown inFigure 3 was corrected for the instrumental resolution of about 5 ps.…”

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confidence: 99%

The primary steps in photography: Excited J‐aggregates on AgBr Microcrystals

Trösken¹,

Willig²,

Schwarzburg³

et al. 1995

Advanced Materials

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The primary process in the photographic emulsion is interfacial electron transfer. The electron is transferred from the excited state of a dye species to empty electron acceptor states in silver bromide. There have been no detailed measurements of the rate constants of this commercially important process. The fluorescence decay curves of thiocarbocyanine dye (see figure) yield these rate constants.

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Temperature-dependent electron-transfer quenching of dye monomer fluorescence on octahedral silver bromide grains

Cited by 29 publications

References 3 publications

Encapsulation of nano Disperse Red 60 via modified miniemulsion polymerization. I. Preparation and characterization

Encapsulation of nano Disperse Red 60 via modified miniemulsion polymerization. I. Preparation and characterization

Steady-state fluorescence and photo-isomerization study of 1-methyl-4′-(p-N,N dimethyl-amino styryl) pyridinium iodide

The primary steps in photography: Excited J‐aggregates on AgBr Microcrystals

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