Author/Authors :
Kepi?، نويسنده , , Dejan P. and Markovi?، نويسنده , , Zoran M. and Jovanovi?، نويسنده , , Svetlana P. and Peru?ko، نويسنده , , Davor B. and Budimir، نويسنده , , Milica D. and Holclajtner-Antunovi?، نويسنده , , Ivanka D. and Pavlovi?، نويسنده , , Vladimir B. and Todorovi? Markovi?، نويسنده , , Biljana M.، نويسنده ,
Abstract :
Enhanced conductivity, transparency and stability are the most important factors to consider in order to prepare electrodes for optoelectronic devices. In this paper, we investigated the properties of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films doped with graphene and graphene quantum dots. Samples were deposited by spin-coating onto glass substrates. Thin films were characterized by UV–vis and Raman spectroscopy, atomic force microscopy (AFM), scanning electron microscopy (SEM) and four-point probe measurements. It was found that both graphene and graphene quantum dots improve the conductivity of PEDOT:PSS films with only small decrease in transparency. AFM and SEM analysis showed homogenous distribution of spherical nanoparticles of graphene quantum dots and irregular shaped nanoparticles of graphene in PEDOT:PSS.
Keywords :
PEDOT:PSS , graphene , Graphene quantum dots , Thin films
