Figure 4From: In situ-prepared composite materials of PEDOT: PSS buffer layer-metal nanoparticles and their application to organic solar cellsSEM image of Ag NPs within PEDOT:PSS media and cross-sectional view. SEM image of (a) Ag NPs within PEDOT:PSS media in the drop-casted film state, and (b) cross-sectional view of spin-casted PEDOT:PSS-Ag NP thin layer.Back to article page