Large-area 2D periodic crystalline silicon nanodome arrays on nanoimprinted glass exhibiting photonic band structure effects Academic Article uri icon

Overview

MeSH Major

  • Cell Transformation, Viral
  • Oncogenes
  • Receptors, Cell Surface

abstract

  • Two-dimensional silicon nanodome arrays are prepared on large areas up to 50cm 2 exhibiting photonic band structure effects in the near-infrared and visible wavelength region by downscaling a recently developed fabrication method based on nanoimprint-patterned glass, high-rate electron-beam evaporation of silicon, self-organized solid phase crystallization and wet-chemical etching. The silicon nanodomes, arranged in square lattice geometry with 300nm lattice constant, are optically characterized by angular resolved reflection measurements, allowing the partial determination of the photonic band structure. This experimentally determined band structure agrees well with the outcome of three-dimensional optical finite-element simulations. A 16% photonic bandgap is predicted for an optimized geometry of the silicon nanodome arrays. By variation of the duration of the selective etching step, the geometry as well as the optical properties of the periodic silicon nanodome arrays can be controlled systematically. © 2012 IOP Publishing Ltd.

publication date

  • April 6, 2012

Research

keywords

  • Academic Article

Identity

Digital Object Identifier (DOI)

  • 10.1088/0957-4484/23/13/135302

Additional Document Info

volume

  • 23

number

  • 13