Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dual functions of anti-reflectance and surface passivation of the atomic
  layer deposited Al2O3 films on crystalline silicon substrates   Surface anti-reflectance and passivation properties of the Al2O3 films
deposited on crystalline Si substrates by atomic layer deposition are
investigated. Textured Si with 100 nm Al2O3 shows a very low average
reflectance of ~2.8 %. Both p-type and n-type Si wafers are well passivated by
Al2O3 films. The maximal minority carrier lifetimes are improved from ~10
{\mu}s before Al2O3 passivation to above 3 ms for both p-type and n-type Si
after Al2O3 passivation layer deposition and annealing at an appropriate
temperature. Our results indicate the dual functions of anti-reflectance and
surface passivation in c-Si solar cell applications.

31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin