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relating to SpringerOpen.   Open Access Nano Express  Pore
formation in p-type silicon in solutions containing different
types of alcohol  Tomoko Urata, Kazuhiro Fukami*, Tetsuo Sakka
and Yukio H Ogata  Author affiliations  Institute of Advanced
Energy, Kyoto University, Uji, Kyoto, 611–0011, Japan  For all
author emails, please log on.  Citation and License  Nanoscale
Research Letters 2012, 7:329  doi:10.1186/1556-276X-7-329
Received:30 April 2012 Accepted:5 June 2012 Published:21 June
2012  © 2012 Urata et al.; licensee Springer.    Macroporous
structure of silicon can be obtained with anodization in
hydrogen fluoride (HF) solution. The macropore formation in the
presence of alcohol was studied. Macroporous layer formation in
a low-concentration HF solution is stabilized with the
increasing number of carbon in alcohol. The dissolution at the
topmost part of the porous layer is observed though the behavior
depends upon the type of alcohol. Meanwhil