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صفحه اصلی
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سی و سومین کنفرانس بین المللی مهندسی برق
Impact of Sierpinski fractal shape on the performance of ultrathin-film silicon solar cells
نویسندگان :
Mohammad Ali Shameli
1
Sayyed Reza Mirnaziry
2
Leila Yousefi
3
1- دانشگاه صنعتی خواجه نصیرالدین طوسی
2- دانشگاه قم
3- دانشگاه تهران
کلمات کلیدی :
Climate change،Solar energy،Thin film solar cells،Trapping sunlight،Sierpinski fractal،Snowflake fractal،Drift and diffusion equations،Short circuit current
چکیده :
In this paper, we study different architecture of Sierpinski fractals integrating into an ultrathin-film solar cell. In the proposed structures, each dielectric Sierpinki fractal is designed to trap sunlight within specific wavelength bands using multiple orders of Mie resonance and branch coupling, collectively covering the solar cell's operation bandwidth. These structures are numerically investigated using full-wave simulation with the FDFD method and compare absorption to find the best shape of fractal solar cell. The calculations demonstrate the snowflake Sierpinski fractal has higher absorption than other types and using multi scales enhanced absorption across the whole wavelength range of 300 nm to 1100 nm, increasing photo-generated current for both TE and TM polarizations of the incident light. Also, electrical simulations illustrate a short circuit current of 15.37 mA/cm² for the proposed structure which is enhanced by a factor of 5.12 compared to a simple solar without fractal nanostructures inside.
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بیشتر
ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 41.7.4