Porosity dependence of the acoustic longitudinal velocity inheavily doped P++ porous silicon layers

Gazimagomed N Aliev, Bernhard Goller, Dmitry Kovalev, Paul Snow

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


The longitudinal acoustic velocity for 1 GHz waves propagating along the 100 direction in p++ porous silicon layers has been measured using an acoustic wave transmission technique. The velocities obtained are significantly higher than those previously observed for p+ samples. The porosity dependence is measured to be V-L = 8.43 (1 - P)0.58 km/s, where V-L is longitudinal velocity and P is porosity. The low value of the exponent (0.58) is an indication of a relatively well-ordered pore structure.
Original languageEnglish
Pages (from-to)1670-1674
Number of pages5
JournalPhysica Status Solidi (C)
Issue number7
Publication statusPublished - Jul 2009
Event6th International Conference on Porous Semiconductors Science and Technology - Mallorca, Spain
Duration: 10 Mar 200814 Mar 2008

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