Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bimolecular theory of non-radiative recombination in semiconductors with
  disorder   The original Shockley-Read-Hall recombination statistics is extended to
include recombination of localized excitations. The recombination is treated as
a bimolecular process rather than a monomolecular recombination of excitons.
The emphasis is placed on an interplay between two distinct channels of
radiative recombination (shallow localized states vs extended states) mediated
by trapping of photogenerated charge carriers by non-radiative centers. Results
of a numerical solution for a given set of parameters are complemented by an
approximate analytical expression for the thermal quenching of the
photoluminescence intensity in non-degenerate semiconductors derived in the
limit of low pump intensities. The merit of a popular double-exponential
empirical function for fitting the thermal quenching of the photoluminescence
intensity is critically examined.

30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math