Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Microscopic observation of carrier-transport dynamics in
  quantum-structure solar cells using a time-of-flight technique   In this study, we propose a carrier time-of-flight technique to evaluate the
carrier transport time across a quantum structure in an active region of solar
cells. By observing the time-resolved photoluminescence signal with a
quantum-well probe inserted under the quantum structure at forward bias, the
carrier transport time can be efficiently determined at room temperature. The
averaged drift velocity shows linear dependence on the internal field, allowing
us to estimate the quantum structure as a quasi-bulk material with low
effective mobility containing the information of carrier dynamics. We show that
this direct and real-time observation is more sensitive to carrier transport
than other conventional techniques, providing better insights into microscopic
carrier transport dynamics to overcome a device design difficulty.

23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg