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Chemical and Physical Properties of Porous Silicon

  • Received : 2011.07.02
  • Accepted : 2011.08.31
  • Published : 2011.09.30

Abstract

The differences of properties for both single-layered and multi-layered porous silicon were investigated. Multistructured porous silicons such as DBR or rugate porous silicon exhibit strong reflection resonances providing the reflection of a specific wavelength in the optical reflectivity spectrum. DBR PSi displays a square varying porosity gradient in the direction perpendicular to the plane of the filter but a sinusoidally varying porosity gradient was obtained for rugate PSi.

Keywords

References

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