Fig. 8From: Design and application of carbon nanomaterials for photoactive and charge transport layers in organic solar cellsTime-dependent photovoltaic properties of a a conventional poly(3,4ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)-based organic solar cell (OSC) and b an OSC with a reduced graphene oxide (RGO) hole transport layer. Reprinted with permission from Yun et al. [77], © 2011, WileyBack to article page