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Volume: 41 | Article ID: art00013
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Island Formation and Layer Growth of Photosensitizing Dye J-Aggregates on AgBr Microcrystals Grown in Gelatin
  DOI :  10.2352/J.ImagingSci.Technol.1997.41.3.art00013  Published OnlineMay 1997
Abstract

Growth mode of thiacarbocyanine J-aggregates with counter ions of different electronic charges is examined, referring to our previous studies with X-ray photoelectron spectroscopy (XPS), cathodoluminescence electron microscopy, high-resolution scanning electron microscopy, (SEM) and atomic force microscopy (AFM). A reinvestigation of the previous XPS studies suggests the dyes nucleate in solution and adsorb onto AgBr microcrystals in gelatin to form multilayered islands in Volmer-Weber growth mode,1 rather than in Van der Merwe type monolayer adsorption. Microscopic studies clearly supported the island-growth mode of J-aggregates on AgBr emulsion crystal surfaces, and the height of each J-aggregate island was measured to be a multiple of unit thickness. However, the number of J-aggregate monolayers in one unit thickness differed with the type of counter ions of the dye.

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Hiroshi Saijo, Makoto Shiojiri, "Island Formation and Layer Growth of Photosensitizing Dye J-Aggregates on AgBr Microcrystals Grown in Gelatinin Journal of Imaging Science and Technology,  1997,  pp 266 - 271,  https://doi.org/10.2352/J.ImagingSci.Technol.1997.41.3.art00013

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Copyright © Society for Imaging Science and Technology 1997
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