We demonstrate the fabrication of surface profile-controlled close-packed Si nanorod arrays (NRAs), using a scalable and integrated circuit compatible process combining colloidal lithography and reactive ion etching. Si NRAs exhibit broadband, omnidirectional, and polarization-insensitive antireflection (AR) properties and enhance the hydrophobicity. The effect of surface profiles of periodic NRAs on the AR and hydrophobicity was investigated systematically. The Si NRAs function as both self-cleaning and AR layers, which offer a promising approach to enhance the solar cell energy conversion efficiency.
Bibliographical noteFunding Information:
The research was supported by the National Science Council (Grant Nos. NSC 96-2112-M-002-038-MY3 and NSC 96-2622-M-002-002-CC3) and the Aim for Top University Project from the Ministry of Education.
ASJC Scopus subject areas
- General Physics and Astronomy