Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tuning photovoltaic response in Bi2FeCrO6 films by ferroelectric poling   Ferroelectric materials are interesting candidates for future photovoltaic
applications due to their potential to overcome the fundamental limits of
conventional single bandgap semiconductor-based solar cells. Although a more
efficient charge separation and above bandgap photovoltages are advantageous in
these materials, tailoring their photovoltaic response using ferroelectric
functionalities remains puzzling. Here we address this issue by reporting a
clear hysteretic character of the photovoltaic effect as a function of electric
field and its dependence on the poling history. Furthermore, we obtain insight
into light induced nonequilibrium charge carrier dynamics in Bi2FeCrO6 films
involving not only charge generation, but also recombination processes. At the
ferroelectric remanence, light is able to electrically depolarize the films
with remanent and transient effects as evidenced by electrical and
piezoresponse force microscopy (PFM) measurements. The hysteretic nature of the
photovoltaic response and its nonlinear character at larger light intensities
can be used to optimize the photovoltaic performance of future
ferro-electric-based solar cells.

25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph