Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Photocarrier extraction in GaAsSb/GaAsN type-II QW superlattice solar
  cells   Photocarrier transport and extraction in GaAsSb/GaAsN type-II quantum well
superlattices are investigated by means of inelastic quantum transport
calculations based on the non-equilibrium Green's function formalism.
Evaluation of the local density of states and of the spectral current flow
enables the identification of different regimes for carrier localization,
transport, and extraction as a function of configurational parameters. These
include the number of periods, the thicknesses of the individual layers in one
period, the built-in electric field, and the temperature of operation. The
results for the carrier extraction efficiency are related to experimental data
for different symmetric GaAsSb/GaAsN type-II quantum well superlattice solar
cell devices and provide a qualitative explanation for the experimentally
observed dependence of photovoltaic device performance on period thickness.

8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con