| Popis: |
Single and double layer antireflection coatings on silicon-based solar cells were simulated and tested using Lumerical software for optical analysis in this paper. Solar spectrum AM1.5 was used in the simulation. In addition, wavelengths of interest were 300–1100 nm to match the bandgap of the absorber layer Si. The simulated ARCs of theoretical values and original materials were built and evaluated in terms of average reflectance, weighted reflectance, and short-circuit current. Si3N4 based SLAR on Si cell achieved the highest Jsc of 39.42 mA/cm2. The DLAR coated cells based on SiO2/ZnS and SiO2/TiO2 obtained Jsc of 39.07 and 37.87 mA/cm2, respectively. Through analyzing the results, it was concluded that the 2nd/bottom layers of both DLARs materials had noticeable absorption at short-wavelengths of the solar spectrum, which is considered optical losses. Thus, it was recommended to have DLAR’s 2nd layer as an absorber layer in the solar cell, and ZnO is a candidate for this design. |
