Characteristics of Tantalum Surface Treated by 6-Triethoxysilylpropylamino-1,3,5-Triazine-2,4-Dithiol Using XPS

The characteristic of material surfaces has a vital status in its application,for instance,surface properties of materials play a decisive role in adhesion technology between different materials.A method called molecule adhesion technology which can successfully adhere different materials such as polymers,rubbers,metals and exhibit strong adhesion strength without any adhesive agents.In this work,the rare metal of tantalum surface treated by corona and a molecular adhesive(6-triethoxysilylpropylamino1,3,5-triazine-2,4-dithiols,TES)has been investigated to clarify the reaction mechanism between tantalum and TES.Chemical structures of surfaces treated by corona and TES were also analyzed.TES contains two functional groups:one is alkoxysilyl group which can react with the OH group linked tantalum formed by the corona discharge treatment;the other is dithiol triazinyl group reacted with many other materials.Blank tantalum,corona treated and TES treated surfaces situation were analyzed by X-ray photoelectron spectroscopy(XPS).The result shows that the functional structure of OH groups was formed after corona discharge process and TES can be successfully reacted on the tantalum surface.This research can be as a preparation work to achieve the tantalum and other materials adhesion by using molecule adhesion technology in the MEMS and NEMS electronic device fields.