[14a-PA5-1~23] 13.9 Compound solar cells

▼ [14a-PA5-4] Mechanical Simulation for Asymmetrical Waveguides for Concentrator Solar Cells

〇(M1)Jiaxing Yu¹, Nobuo Sawamura¹, Akira Ishibashi¹ (1.RIES, Hokkaido Univ.)

Keywords:Asymmetrical waveguide, Concentrator solar cells, PDMS

So far, many studies have been done in order to improve the efficiency of solar cells, and numerous types of photovoltaic devices have been reported. However, it is still difficult for us to convert the full sunlight spectrum into electricity. In order to solve this problem, we come up with a new solution which shall be of importance for the development of renewable energy society and greatly improve the efficiency of solar cells. Being different from the conventional solar cells in which photons and photocarrier are absorbed parallelly, our new approach is that we make the photon and photocarrier absorbed orthogonally. In our asymmetric waveguide coupled concentrator solar cells. The waveguide we proposed is asymmetric, and better confinement of photons in the waveguide resulting in more photon harvesting. Now, the new waveguide structure with discrete translational symmetry is needed to be implemented. Based on simulations, we have shown that using PDMS the waveguide structure can be achieved that goes good propagation. The new waveguide would serve, in the near future, as key component for concentrator solar cells.