Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Material selection method for a perovskite solar cell design based on
  the genetic algorithm   In this work, we propose a method of selecting the most desirable
combinations of material for a perovskite solar cell design utilizing the
genetic algorithm. Solar cells based on the methylammonium lead halide,
CH3NH3PbX3, attract researchers due to the benefits of their high absorption
coefficient and sharp Urbach tail, long diffusion length and carrier lifetime,
and high carrier mobility. However, their poor stability under exposure to
moisture still poses a challenge. In our work, we assigned stability index,
power conversion efficiency index, and cost-effectiveness index for each
material based on the available experimental data in the literature, and our
algorithm determined the TiO2/CH3NH3PbI2.1Br0.9/Spiro-OMeTAD as the most well
balanced solution in terms of cost, efficiency, and stability. The proposed
method can be extended further to aid the material selection in all-perovskite
multijunction solar cell design as more data on perovskite materials become
available in the future.

1
The categories of this paper are: cs
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an