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Abstract
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 language | English |
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Pages (from-to) | 1670-1674 |
Number of pages | 5 |
Journal | Physica Status Solidi (C) |
Volume | 6 |
Issue number | 7 |
DOIs | |
Publication status | Published - Jul 2009 |
Event | 6th International Conference on Porous Semiconductors Science and Technology - Mallorca, Spain Duration: 10 Mar 2008 → 14 Mar 2008 |
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Dive into the research topics of 'Porosity dependence of the acoustic longitudinal velocity inheavily doped P++ porous silicon layers'. Together they form a unique fingerprint.Projects
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SOUND-LIGHT INTERACTIONS IN SPATIALLY PERIOD NANOPOROUS SILI CON STRUCTURES
Snow, P., Birks, T. & Russell, P. S.
Engineering and Physical Sciences Research Council
5/09/05 → 4/02/10
Project: Research council