• Antireflection silicon structures with hydrophobic property fabricated by three-beam laser interference

      Zhao, Le; Wang, Zuobin; Zhang, J.; Cao, L.; Li, L.; Yue, Y.; Li, Dayou; Changchun University of Science and Technology; University of Bedfordshire; Jiaotong-Liverpool University (Elsevier, 2015-08-15)
      This paper demonstrates antireflective structures on silicon wafer surfaces with hydrophobic property fabricated by three-beam laser interference. In this work, a three-beam laser interference system was set up to generate periodic micro-nano hole structures with hexagonal distributions. Compared with the existing technologies, the array of hexagonally-distributed hole structures fabricated by three-beam laser interference reveals a design guideline to achieve considerably low solar-weighted reflectance (SWR) in the wavelength range of 300-780 nm. The resulting periodic hexagonally-distributed hole structures have shown extremely low SWR (1.86%) and relatively large contact angle (140°) providing with a self-cleaning capability on the solar cell surface.