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Single-crystal silicon is the material of choice for most semiconductor electronic applications, such as computer microprocessors, computer memory...


= Encyclopedia Article; = Research Update
Figure 1.Porous silicon. (a) Electrochemical cell used in preparation (after R. T. Collins, P. M. Fauchet, and M. A. Tischler, Porous silicon: From luminescence to LEDs, Phys. Today, 50(1):24–31, January 1997). (b) Transmission electron micrograph showing open pore structure (from A. G. Cullis and L. T. Canham, Visible light emission due to quantum size effects in highly porous silicon, Nature, 353:335–337, 1991).
From update 'Optoelectronic device'
Photoluminescence spectra for four different samples of porous silicon. By varying the preparation conditions, the luminescence wavelength has been varied from the infrared to the green.
From update 'Optoelectronic device'
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