The objective of this paper is to initiate an innovative photovoltaic technology based on novel inorganic with suitable bandgap widths and organic materials (biopolymer). These oxides are more stable, needless perovskites. We aim to synthesize ferroelectric materials that absorb a large part of the solar spectrum with reduced bandgap widths and give high Voc value. Our interest was in Pb(Zn1/3Nb2/3)O3-PbTiO3 (PZN-PT) perovskites that revealed excellent ferroelectric, piezoelectric and ferroelastic properties in solid state . However, despite these excellent properties and perspectives to use them in solar cells devices, the veritable challenge is to fabricate them as in thin films form. To overcome this challenge, PZN-4.5PT nanoparticles were dispersed in a biopolymer. Organic and inorganic thin films with these inorganic nanoparticles embedded in a biopolymer have been successfully fabricated by spin coating on ITO substrate. The sample DKFB-PD2 is constituted by ITO/TiO2/(PZN-4.5PT+ biopolymer)/ biopolymer(HTM)/Ag. This sample was exposited on light (under 5,2W/m2 lightning) during 30mn on lab, and the first study was for 5mn and the second for 30mn. I-V characteristics were determined and SEM images were performed.