ИСТИНА

Hybrid polymer composites are of strong interest due to combination of the advantages of both organic and inorganic materials. In the present research we studied nanocomposites based on water-dispersible polyaniline(PANI)-polyacid complex and 2D layered structures. For tuning nanocomposite electrical, optical, morphological properties graphene of different oxidation degree (reduced, partially oxidized (poG) and oxidized graphene) and graphene-like molybdenum disulfide (MoS2) were used. By FTIR-spectroscopy we have recently established that graphene oxidation degree influences the interactions between graphene and components of the PANI complex1. The incorporation of only 1 wt.% poG or 10 wt.% MoS2 into PANI-polyacid complex increased the conductivity up to 1 order of magnitude while the concentration of these 2D materials were less than that of percolation threshold. As shown by AFM and TEM measurements, the enhanced conductivity results from the formation of continuous charge-transport network involving uniformly distributed 2D layered structures and PANI complex. The influence of the 2D layered structures on charge carrier mobility in polymer nanocomposites was studied by using Hall Effect techniques. The applicability of the developed nanocomposites as an anodic buffer layer in single solar cells and as an interface layer in tandem solar cells were demonstrated.