| dc.description.abstract | In this study, we propose a facile and efficient method to produce textured surfaces on glass and silicon substrates, which is based on the sandblasting with a wet etching technique. The transmittance of the textured glass was found to decrease with etching time first then increase. The intensity of light scattering from the textured glass was increased with etching time, and reached the maximum value at the etching time of 8 min. The transmittance, scattering, and haze values of the textured glass substrate after etching at 8 min were measured to be about 92.5 %, 63.3 %, and 68.4 %, respectively. In addition, the optical properties of the textured glass substrates after depositing ZnO:Al thin films show the same trend as these textured glass substrates.
After appropriate sandblasting and wet etching treatments, the optical reflectance of the textured silicon substrates can be significantly reduced. By adjusting the etching time, the average reflectance measured in the wavelength range of 400 to 800 nm for the bowl-like textured Si substrates can be gradually decreased from 24 % to less than 2 %. Therefore, the process proposed in the study and the bowl-like antireflection structures produced may have potential applications in high-efficiency Si-based solar cells. | en_US |