Wei Sun Leong
Two-dimensional materials, such as graphene, are attractive for both conventional semiconductor applications and nascent applications in flexible electronics. However, the high tensile strength of graphene results in fracturing at low strain, making it challenging to take advantage of its extraordinary electronic properties in stretchable electronics. To enable excellent strain-dependent performance of transparent graphene conductors, we created graphene stacks with different wrinkle density, which retains 65% of their original conductance at 100% strain, which is perpendicular to the direction of current flow. These highly stretchable and transparent electrodes could enable sophisticated stretchable optoelectronics.