Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Formation of fluorescent H aggregates of a cyanine dye in LB films and
  its effect on energy transfer   Here we report the formation of fluorescent H aggregates of a cyanine dye
Oxa18 in ultrathin film and its effect on energy transfer between Oxa18 and
sRhb. Ideally H aggregate do not fluoresce. However, due to imperfect stacking
of Oxa18 molecules in the aggregates, fluorescence occurred from Oxa18 H
aggregates. This H aggregated band has substantial effect on the enhancement of
energy transfer from Oxa18 to sRhb both in solution and in ultrathin film.

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The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con