Karafan Journal

Karafan Journal

Numerical Study of Short-circuit Current Density and Absorption in the Active Layer of Organic Solar Cells in the Presence of Cylindrical Nanoparticles

Document Type : Original Article

Authors
1 Assistant Professor, Department of Physics, Science Faculty, University of Lorestan, Khorramabad, Iran.
2 PhD Student, Department of Physics, Science Faculty, University of Shahid Chamran, Ahvaz, Iran.
3 MSc, Department of Physics, Science Faculty, University of Lorestan, Khorramabad, Iran.
Abstract
In the present reaserch, using the finite difference time domain method (FDTD), the effect of the presence of solid aluminum nanocylinders containing elliptical holes (cores) on the quantities of short-circuit current density and absorption was investigated in the ITO/PEDOT:PSS/P3HT:PCBM/ZnO/Al organic solar cell. The nanoparticles are located in a hexagonal pattern inside the P3HT:PCBM layer and on the border with the ZnO layer. For simulation, the standard spectral pattern of the sun AM1.5 was used in the spectral range of 300-1200 nm. Calculations showed that the presence of different nanocylinders caused a significant improvement in the values of  high quantities. This was particularly noticeable in the range of high wavelengths. In addition, the presence of nanocylinders created an optimal thickness of 150 nm for the active layer of P3HT:PCBM solar cell, so the mentioned quantities had the highest values. This optimal thickness was independent of the presence of dielectric cores in nanocylinders. Comparing the calculation results under different conditions showed that when the thickness of the active layer was 150 nm, the height and radius of the nanocylinders were 50 nm and 15 nm, and the elliptical holes had small and large radii of 1 nm and 15 nm, respectively. The short-circuit current density and absorption of the intended solar cell had their optimal values.
Keywords
Subjects

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Volume 21, Issue 3
Technical and Engineering
Autumn 2024
Pages 477-498

  • Receive Date 31 August 2022
  • Revise Date 23 October 2022
  • Accept Date 19 November 2022