City University of Hong Kong

Yawen Zhan

Jian Lu

Yang Yang Li

Yangyang Li

A method for chemically modifying a surface of a metallic substrate material being made of a first metallic material includes the steps of a) bonding an alloy material made of the first metallic material and a second metallic material onto the substrate material; and b) etching away at least some of the first metallic material from the bonded substrate material to obtain a modified substrate material, wherein the modified substrate material has an increased specific surface area. A substrate for Surface Enhanced Raman Spectroscopy (SERS) includes a modified substrate material.

Method for modifiying a surface of a metallic substrate material

A method for treating a surface of a metallic structure, the metallic structure being made of a first metallic material; the method including the steps of: (a) bonding an alloy material made of the first metallic material and a second metallic material with the structure; and (b) etching away at least some of the first metallic material from a structure obtained after step (a) so as to obtain a treated structure with an increased specific surface area compared with the metallic structure before treatment.

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Hong Kong, China

Yawen Zhan