Ultralight Paper-Based Electrodes for Energy Applications

In this chapter, we briefly introduce our recent work related to the topic of ultralight paper-based electrodes for energy applications. Herein, the ultralight paper-based counter electrodes containing commercial poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) and homemade graphene dots (GDs) are synthesized for preparing flexible dye-sensitized solar cells (DSSCs). Because the GDs/PEDOT:PSS composite can well fill the porosity of paper substrate, the flexible DSSC with GDs/PEDOT:PSS-coated paper electrode exhibits much higher cell efficiency than that of DSSC using paper electrode with Pt. The features of lightweight, low-cost, space-saving (high flexibility), high machinability (easy-cutting) and environmental friendly would make the GDs/PEDOT:PSS-coated paper electrodes highly potential in portable/wearable electronic applications