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