Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Self - assembly of HgTe nanoparticles into nanostars using single
  stranded DNA   Self-assembly of structurally tunned nearly monodispersed HgTe - ssDNA
nanostars of average size 1.4 nm have been achieved by manipulating HgTe
nanoparticles using single stranded (ss) DNA under galvanostatic condition. The
nanostars are linked with one another by ssDNA of length 0.35 nm. Whereas, HgTe
nanoparticles without ssDNA complexation show a polycrystalline character with
size in the range 4 - 7 nm. Room temperature photoluminescence (PL) of HgTe -
ssDNA nanostars have yielded a single narrow PL at 548.4 nm of width 8 nm that
corroborates to the nearly monodispersity of the nanostars and predicts the
lateral exciton transfer. On the other hand, polydispersed HgTe nanoparticles
exhibit free- and bound- exciton dominated luminescence in their PL spectrum.

17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th