Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simulation of the transient photocurrent response of polycrystalline
  photocells based on equivalent circuit analysis   We propose an equivalent circuit representation of the photogenerated charge
separation and propagation in dye sensitized polycrystalline semiconductor in
contact with a redox electrolyte. The suggested equivalent circuit for this
type of photocell is based on an electrical transmission-line, and uses
distributed photodiode model for the semiconductor-redox electrolyte interface.
It was found that for small signal conditions, diodes can be replaced by
equivalent elements, each consisting of a resistor and a capacitor connected in
series. The equivalent circuit also provides for Beer-Lambert characteristics
of light absorption.
  The simulation of the transmission line equivalent circuit, subjected to
short pulse illumination, allows us to reproduce the experimentally found
difference between the photocurrent responses of the photocell to illumination
from the electrolyte side, and its response to illumination through the
semitransparent back electrode, to which the polycrystalline semiconductor
layer is attached.
  We suggest an electrochemical model for photogenerated charge separation,
whereby the electrical field across the Helmholtz electrostatic double layer at
the polycrystalline phase - electrolyte interface separates the photogenerated
carriers.

23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph