Abstract
We study the surface morphology, optical absorption (400–1100 nm), and carrier lifetime of black silicon fabricated by femtosecond (fs) laser in air. We explore a large laser parameter space, for which we adopt a single parameter ξ to describe the cumulative fluence delivered to the sample. We also study the laser-oxidized surface layer by measuring its photoluminescence spectra and comparing its effect on the aforementioned properties. Our study in a broad range of ξ is instructive in choosing laser parameters when targeting different applications.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Yang Yang, Ji-Hong Zhao, Chao Li, Qi-Dai Chen, Zhan-Guo Chen, and Hong-Bo Sun
Opt. Lett. 46(13) 3300-3303 (2021)
Zefang Deng, Qing Yang, Feng Chen, Xiangwei Meng, Hao Bian, Jiale Yong, Chao Shan, and Xun Hou
Opt. Lett. 40(9) 1928-1931 (2015)
Xuepeng Zhan, Huailiang Xu, Chunhao Li, Hongwei Zang, Chang Liu, Jihong Zhao, and Hongbo Sun
Opt. Lett. 42(3) 510-513 (2017)