Smart dust : Ferromagnetic photonic crystals derived from porous silicon

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

View graph of relations

Author(s)

Detail(s)

Original languageEnglish
Title of host publicationProceedings - Electrochemical Society
Pages383-388
VolumePV 2004-19
Publication statusPublished - 2006
Externally publishedYes

Publication series

Name
VolumePV 2004-19

Conference

Title206th Electrochemical Society Meeting
PlaceUnited States
CityHonolulu, HI
Period3 - 8 October 2004

Abstract

Micron-sized magnetic particles consisting of a porous Si photonic crystal with attached Fe nanoparticles are prepared. The photonic crystals are generated by electrochemically etching a porous multilayered dielectric mirror into silicon. The film is removed from the Si substrate and magnetic Fe nanoparticles are deposited on the mirror from a colloidal dispersion. The film is then fractured into small particles, yielding microscopic magnetic photonic crystals that are brightly colored on one side and dark black on the other. The magnetic porous silicon photonic crystals can be flipped between the colored side and the dark side by application of a small magnetic field. Switching of the particles at a rate of 175 Hz is demonstrated.

Citation Format(s)

Smart dust: Ferromagnetic photonic crystals derived from porous silicon. / Sailor, Michael J.; Li, Yang Yang; Trujillo, Nathan et al.
Proceedings - Electrochemical Society. Vol. PV 2004-19 2006. p. 383-388.

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review