Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Adsorption of a Cationic Laser Dye onto Polymer/Surfactant Complex Film
  Fabricated by Layer-by-Layer Electrostatic Self-Assembly Technique   Fabrication of complex molecular films of organic materials is one of the
most important issues in modern nanoscience and nanotechnology. Soft materials
with flexible properties have been given much attention and can be obtained
through bottom up processing from functional molecules, where self-assembly
based on supramolecular chemistry and designed assembly have become crucial
processes and technologies. In this short communication, we report the
successful incorporation of cationic laser dye Rhodamine 6G abbreviated as R6G
into the pre-assembled polyelectrolyte/Surfactant complex film onto quartz
substrate by electrostatic adsorption technique. Poly(allylamine hydrochloride)
(PAH) was used as polycation and Sodium dodecyl sulphate(SDS) was used as
anionic surfactant. UV-Vis absorption spectroscopic characterization reveals
the formation of only H-type aggregates of R6G in their aqueous solution and
both H and J-type aggregates in PAH/SDS/R6G complex LbL films as well as the
kinetics of adsorption of R6G onto the complex films. The ratio of the
absorbance intensity of two aggregated bands in PAH/SDS/R6G complex films is
merely independent of the concentration range of the SDS solution used to
fabricate PAH/SDS complex self-assembled films. Atomic Force Microscopy reveals
the formation of R6G aggregates in PAH/SDS/R6G complex films.

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The categories of this paper are: acc-phys
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The categories of this paper are: stat
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-th
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ex
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The categories of this paper are: alg-geom
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The categories of this paper are: nlin
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The categories of this paper are: q-fin
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The categories of this paper are: math-ph
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The categories of this paper are: math
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The categories of this paper are: physics
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The categories of this paper are: gr-qc
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The categories of this paper are: cmp-lg
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The categories of this paper are: bayes-an