Stretchable, transparent and molecular permeable honeycomb electrodes and their hydrogel hybrids prepared by the breath figure method and sputtering of metals

We here describe a thin, highly stretchable transparent and molecular permeable porous electrode with a well-defined honeycomb structure fabricated by a combination of a bottom-up breath figure process and top-down sputtering of metals. Furthermore, the honeycomb electrode-hydrogel hybrids show higher durability, optical transparency, and electrical conductivity. The optical and electrical properties of the electrode, and its potential for use as a stretchable transparent electrode, are discussed.