Volume holography is a research topic that was generated considerably a big interest of the storage information during the last decades. The different systems of storage holographic are principally determined by the physic and chemical characteristics of the storage material. We use an organic conductive material based on polyvinyl alcohol (PVA) for the volume holographic storage. We presented some electro-optics results and physic - chemicals properties of the material used for holographic storage. The influences in the diffraction efficiency parameter as change different variables into material and the qualitative results of other electro-optical parameters examined.