Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coupled Charge and Radiation Transport Processes in Thermophotovoltaic
  and Thermoradiative Cells   Accurate modeling of charge transport and both thermal and luminescent
radiation is crucial to the understanding and design of radiative thermal
energy converters. Charge carrier dynamics in semiconductors are well-described
by the Poisson-drift-diffusion equations, and thermal radiation in
emitter/absorber structures can be computed using multilayer fluctuational
electrodynamics. These two types of energy flows interact through radiation
absorption/luminescence and charge carrier generation/recombination. However,
past research has typically only assumed limited interaction, with thermal
radiation absorption as an input for charge carrier models to predict device
performance. To examine this assumption, we develop a fully-coupled iterative
model of charge and radiation transport in semiconductor devices, and we use
our model to analyze near-field and far-field GaSb thermophotovoltaic and
thermoradiative systems. By comparing our results to past methods that do not
consider cross-influences between charge and radiation transport, we find that
a fully-coupled approach is necessary to accurately model photon recycling and
near-field enhancement of external luminescence. Because these effects can
substantially alter device performance, our modeling approach can aid in the
design of efficient thermophotovoltaic and thermoradiative systems.

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The categories of this paper are: math-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: q-alg
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: chem-ph
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The categories of this paper are: eess
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The categories of this paper are: nlin
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The categories of this paper are: hep-ex
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The categories of this paper are: ao-sci
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The categories of this paper are: econ
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The categories of this paper are: atom-ph