Nanostructures formed by displacement of porous silicon with copper: from nanoparticles to porous membranes

作者：Bandarenka Hanna^*; Redko Sergey; Smirnov Aleksandr; Panarin Andrei; Terekhov Sergei; Nenzi Paolo; Balucani Marco; Bondarenko Vitaly

来源：Nanoscale Research Letters, 2012, 7: 1-10.

DOI：10.1186/1556-276X-7-477

• Porous silicon
• Copper
• Displacement deposition
• Nanostructures

The application of porous silicon as a template for the fabrication of nanosized copper objects is reported. Three different types of nanostructures were formed by displacement deposition of copper on porous silicon from hydrofluoric acid-based solutions of copper sulphate: (1) copper nanoparticles, (2) quasi-continuous copper films, and (3) free porous copper membranes. Managing the parameters of porous silicon (pore sizes, porosity), deposition time, and wettability of the copper sulphate solution has allowed to achieve such variety of the copper structures. Elemental and structural analyses of the obtained structures are presented. Young modulus measurements of the porous copper membrane have been carried out and its modest activity in surface enhanced Raman spectroscopy is declared.

• 出版日期2012-8-23