Ionic paper electronic platform (ipep)

An authentication device for verifying the authenticity of an object, comprising at least one flexible electronic device according to any of the claims 8-10, said flexible electronic device having a first chemical state associated with a first color, characterized by said flexible electronic device being connectable to a power supply to form an electrical circuit in such a way that an electrical current can flow through said flexible electronic device, and said flexible electronic device being arranged to be in a second chemical state associated with a second color when a current flows through said flexible electronic device.

A method for verifying an authenticity of an object, featuring the steps of:

• (a) providing an authentication device comprising an ionic paper and a flexible electronic device mounted on said ionic paper, wherein said flexible electronic device is in a first chemical state associated with a first color, and
• (b) connecting a power supply to said flexible electronic device so that said flexible electronic device changes to a second chemical state associated with a second color.

A method of producing porous ionic conducting material, comprising the step of:

• positioning an ionic substance into cellulosic material to form a continuous web or at least one individual sheet of porous ionic cellulosic based material, wherein the steps of first producing a web or sheet shaped cellulosic based substrate and thereafter applying a liquid comprising room temperature ionic liquids.

A flexible web or sheet shaped material comprising an ionic substance, characterized by being mainly formed by a cellulosic fiber web or sheet comprising ionic substances applied by means of a liquid and by said ionic substance being mainly applied by deposition or application of said liquid comprising room temperature ionic liquids.