| 摘要 |
An apparatus, preferably a battery cell, a FET or a sensor, is disclosed comprising an insulating substrate 101, at least two charge collectors 102, 103 spaced apart on the substrate surface, a proton-generating electrode layer configured to generate proton charge carriers 104, a proton-accepting electrode layer configured to accepted the generated proton charge carriers 105, wherein each of the proton-generating electrode layer and proton-accepting electrode layer are configured to be electrically connected to a different one of the respective charge collectors, and to overlap in a junction region such that the charge carriers of the layers can be transferred between the proton-generating and proton-accepting electrode layers to thereby generate a voltage. The proton-generating electrode preferably comprises fully or partially oxidised graphene flakes. The proton charge carriers preferably comprise charge-releasing functional groups such as carboxyl, hydroxyl or epoxy. The substrate may be flexible, resilient or foldable and it may comprise a polymer sheet, glass or paper. The charge collector preferably comprises silver or copper. The electronic components may be printed onto the substrate, preferably from ink. The apparatus may also comprise an electrolyte layer 106 comprising Nafion (RTM) or polyvinyl alcohol (PVA). |
