title: Three-dimensionally designed anti-reflective silicon surfaces for perfect absorption of light.
abstract: An ideal black material absorbs light perfectly over all wavelengths and is totally nonreflective. Material and structural design are crucial to the management of reflectivity. Here, we report a three-dimensionally designed (3D) silicon structure consisting of silicon pillars. To our knowledge, this 3D hierarchical surface has the lowest specular reflectance among silicon-based materials reported to date.
authors.affiliation: Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Republic of Korea. limmems@postech.ac.kr.
authors.forename: Seong J
authors.initials: SJ
authors.lastname: Cho
authors.forename: Taechang
authors.initials: T
authors.lastname: An
authors.forename: Geunbae
authors.initials: G
authors.lastname: Lim