Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Influences of excitation-dependent bandstructure changes on InGaN
  light-emitting diode efficiency   Bandstructure properties in wurtzite quantum wells can change appreciably
with changing carrier density because of screening of quantum-confined Stark
effect. An approach for incorporating these changes in an InGaN
light-emitting-diode model is described. Bandstructure is computed for
different carrier densities by solving Poisson and k\cdotp equations in the
envelop approximation. The information is used as input in a dynamical model
for populations in momentum-resolved electron and hole states. Application of
the approach is illustrated by modeling device internal quantum efficiency as a
function of excitation.

36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
18
The categories of this paper are: econ