The production of innovative materials with cutting-edge properties is primarily responsible for the advancements in the energy sector. In particular, the fabrication of the capacitors is mainly based on sandwiching a dielectric material between two electrodes. It is widely acknowledged that the energy density in the dielectric medium is a function of the permittivity and the electric field intensity. This work is dealing with the prepara-tion and investigation of new dielectric materials starting from chitosan – as matrix, and barium titanate powder – asferroelectric filler. The chosen reinforcement agent was pre-pared by co-precipitation technique at low temperatures (900C). The X-ray diffraction studies proved that the ceramic particles display the perovskite structure. Moreover, the morphological aspects of the ferroelectric particles were examined by transmission elec-tron microscopy and the images revealed that all synthesized powders are homogeneous in size, which is around 300 nm. The studied films were produced by using the dry phase inversion method, in which the ferroelectric filler was dispersed in the aqueous solutions of chitosan. Fourier-transform infrared spectroscopy was applied to the chitosan and chi-tosan-based composite foils to analyze the structural features. The samples were also studied by dielectric spectroscopy to check the permittivity changes upon insertion of variable amounts of ferroelectric particles in chitosan. The enhancement of the permittivity recommends the dielectric composites as good candidates for making capacitor de-vices.