Silicon nanoparticle formation by electrodeposition from silicate
AssigneeThe Board of Trustees of the University of Illinois and The University of Jordan
InventorsMunir Nayfeh, Laila Abuhassan
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Abstract
The invention provides a method for the formation of silicon nanoparticles, in sizes that fluoresce, by electrodeposition of silicon material onto a non-reactive (with HF) metal (e.g., platinum) surface from a solution of silicate and HF or HF/H2O2. In an embodiment of the invention, a positively biased substrate with a platinum surface is immersed in a solution of sodium metasilicate in HF/H2O2, a current is drawn and a coating of silicon nanoparticles is formed on the platinum surface.
Claims12
A method for forming silicon nanoparticles, the method comprising steps of:
- providing a substrate with a non reactive metal surface;
- contacting at least a portion of the non reactive metal surface with an electrodeposition solution including a silicate solution and one of HF/H2O2 and HF;
- and
- positively biasing the substrate with respect to a counter electrode to establish an electrodeposition current to deposit silicon nanoparticles onto the non reactive metal surface.
Dependencies are inferred from the claim text.