Tantalum clip works as an electrical conductor between an electrode material (free-standing or deposited on a substrate) and an external circuit. This clip is formed from a pure metal wire and has a smooth surface. It is compatible with most of inorganic and organic based free-standing membranes or thin films deposited on flexible and rigid substrates. A maximum thickness of the sample is 1 mm. This clip is made of Tantalum which is known to be inert to practically all organic and inorganic compounds. Tantalum's corrosion resistance is very similar to that of glass, as both are unsuitable for use in hydrofluoric acid and strong hot alkali applications.

Application note
Generally, the electrode is fabricated by fixing the sample into the Tantalum clip. Such electrode is immersed in the ion-conducting solution as a working electrode. An electric current is passed between the working electrode and the counter electrode for a certain amount of time. Tantalum wire clip may be reused. The clip should be cleaned prior to the deposition of electrode material.

O-Ring type:
water-based electrolyte
organic electrolyte