About

Repository for paper titled "Application of Genetic Algorithm for More Efficient Multi-layer Thickness Optimization in Solar Cells".

Contents

Requirements • How to Use • Results • How to Cite

Requirements

• Windows 7 or Ubuntu 18.04
• Matlab 2018b or 2019a
  • Toolboxes (Add-Ons > Get Add-Ons)
    • de2bi and bi2de functions:
      • Communication System Toolbox (Matlab 2018b)
      • Communications Toolbox (Matlab 2019a)
    • Parallel Computing Toolbox
    • Trading Toolbox
  • cprintf.m (download link)
• Lumerical, FDTD solutions software + license (you can get 1 month trial version from their website if you have an organization email)

How to Use

1. Set up solar cell model
   • With FDTD software
     • Solar cell FDTD file: Evo_alg__P3HT-ICBA.fsp
     • In the file that starts with jsc_FDTD_..., under the comment %Load simulation file, change the file directory to the directory you have saved the solar cell FDTD file in.
   • Without FDTD software (for testing)
     • Use in-built Jsc (fitness function) dictionary by setting testing = 2 in the .m file that starts with Evo_alg_...
2. Run code with Main_frontend_gui.m
   • Single layer ZnO: ./'ZnO optical spacer optimization files'/ZnO_Main_frontend_gui.m
   • Single layer MoOx: ./'MoOx optical spacer optimization files'/MoOx_Main_frontend_gui.m
   • Multiple layer: ./'ZnO+MoOx optical spacer optimization files'/ZnO_and_MoOx_Main_frontend_gui.m
3. Choose how many runs of each selection method has to perform
   • Each section has a repeat counter of 1000 times, used in order to find the average number of simulations required by the selection method.
   • For real time usage, change the 'repeat_runs' variable value to 1 in the .m file that starts with Evo_alg_...

Results

• Results are saved in Excel files, with number of sheets equivalent to the number of runs in each selection.
• Obtain performance graph: evaluation scripts

  Accuracy of 100% (meaning): all the 5000 runs converged to the optimal solution.

ZnO single layer optimization [excel]

MoOx single layer optimization [excel]

ZnO+MoOx multi-layer optimization [excel]

Crossover methods: Uniform vs k-point

Acknowledgment

Co-First Authors: Premkumar Vincent and Gwenaelle Cunha Sergio had equal contribution

@article{VincentAndCunha2020GASolarCell,
   title={Application of Genetic Algorithm for More Efficient Multi-layer Thickness Optimization in Solar Cells},
   author={{Vincent, P. and Sergio, G. C.} and Jaewon Jang and In Man Kang and Jaehoon Park and Hyeok Kim and Minho Lee and Jin-Hyuk Bae},
   year={2020},
   journal={Energies},
   volume={13},
   issue={7},
   pages={1--14},
   article-number={1726},
   DOI={10.3390/en13071726},
   ISSN={1996-1073},
}

Contact: 2014600014@knu.ac.kr and gwena.cs@gmail.com