title: Low-cost, large-scale, and facile production of Si nanowires exhibiting enhanced third-order optical nonlinearity.
abstract: A facile method for the low-cost and large-scale production of silicon nanowires has been developed. Silicon powders were subjected to sequential metal plating and metal-assisted chemical etching, resulting in well-defined silicon nanowires. The morphology and structure of the silicon nanowires were investigated, revealing that single-crystal silicon nanowires with average diameters of 79 ± 35 nm and length more than 10 μm can be fabricated. The silicon nanowires show excellent third-order nonlinear optical properties, with a third-order susceptibility much larger than that of bulk silicon, porous silicon, and silicon nanocrystals embedded in SiO(2).
authors.affiliation: Functional Molecular Materials Research Centre, Scientific Research Academy, Jiangsu University, Zhenjiang 212013, PR China. zphuang@ujs.edu.cn
authors.forename: Zhipeng
authors.initials: Z
authors.lastname: Huang
authors.forename: Ruxue
authors.initials: R
authors.lastname: Wang
authors.forename: Ding
authors.initials: D
authors.lastname: Jia
authors.forename: Li
authors.initials: L
authors.lastname: Maoying
authors.forename: Mark G
authors.initials: MG
authors.lastname: Humphrey
authors.forename: Chi
authors.initials: C
authors.lastname: Zhang