کنفرانس مهندسی برق ایران

صفحه اصلی / بیست و نهمین کنفرانس مهندسی برق ایران

Absorption Enhancement in Thin-Film Solar Cells using Integrated Photonic Topological Insulators

نویسندگان :

Mohammad Ali Shameli¹ Leila Yousefi²

1- دانشگاه تهران 2- دانشگاه تهران

کلمات کلیدی :

Photonic topological insulator, Photonics crystal, edge modes, thin-film solar cells, light trapping, short circuit current

چکیده :

We propose a new method to trap sunlight in the active layer of thin-film solar cells. In this method, a photonic crystal, which realizes photonic topological insulators (PTI), is integrated inside the solar cell to trap sunlight in the active layer. PTIs with edge states in their boundaries, confine sunlight around their bulks and prevent sunlight from returning to the air. The performance of the structure is investigated numerically using full-wave analysis. Numerical results show that the proposed method enhances the absorption of the solar cell in a wide range of wavelengths, as well as different angles of the incident light. The numerical calculations show that the short circuit current of the solar cell with PTI increases by 28 % in comparison with the simple solar cell.

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