CdSe/ZnS quantum dots as a booster in dispersed ternary organic photovoltaics active layer

The paper presents studies of polymer-fullerene matrix-dopped CdSe/ZnS nanodots for application in organic solar cells. As a reference active layer, poly(3-hexylthiophene-2 5-diyl) and 6,6-phenyl-C71-butyric acid methyl ester arrangement was used. Absorption and luminescence spectra were determined for CdSe/ZnS quantum dots. The dispersion relations for optical constants were determined for pure quantum dots and matrixes using ellipsometric spectroscopy. The morphologies of the thin film layers were performed using Atomic Force Microscope (AFM). Chemical boundings for ternary layers were obtained by Raman spectroscopy. Based on UPS studies, the energy diagram of the potential devices was determined. Impedance spectroscopy studies were also performed to obtain layers resistance. The performance results of organic cells with donor active layers doped with quantum dots were obtained using General-Purpose Photovoltaic Device Model (GPVDM) software.