Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tailoring the physical properties of poly(3-Hexylthiophene) thin films
  using electro-spray deposition   Structural and electronic properties of homogeneous poly(3-Hexylthiophene)
(P3HT) films ob- tained from the electro-spray method were presented by means
of grazing incidence x-ray diffrac- tion, atomic force microscopy, optical
absorption, photoelectron spectroscopy and (photo)electrical conductivity.
Different structural conformations were obtained starting from different
solution con- centrations and flow rate conditions. The electro-spray method
was shown to effectively expand the control of the conformation and assembling
of the polymers films, opening the way to the possibility of tailoring film
characteristics according to device specifications.

26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph