The natural Sun light exploitation is one of the major goals nowadays for energy production or storage. However, the present limitation of the most of the electricity supply way is the CO2 release and their possibility to store it. SNON project is focused on this topic – aiming to improve the energy storage and the conversion yield by photo-catalytic activity. SNON project targets to design a laboratory test bed which will serve for new nitride and oxy-nitride semiconductor family materials based on Ta and Zn metals at nanometric scale. The research performed in the Romanian and French partners for this project focuses on the use of magnetron discharge glow discharge operating in high power regime 50kW during the pulse (~100 µs). This novel deposition technique could deposit interesting stable Ta(Zn)ON materials. Moreover, the colloidal lithography associate dot the conventional magnetron sputtering technique will allow developing mixed nano-textured materials: small nanoparticles on continuous films and gradient concentration films. An exploratory research on nanoparticles elaborated by laser pyrolysis will complete the material elaboration panel. R&D research will be mainly experimental aiming to qualify the nitride and oxynitride which present attractive photo-electronic and photo electro-catalytic properties. Many characterization techniques available in all partner laboratories will be used in a synergetic way. The consortium is composed of LPGP (Orsay, France) with an expertise in HIPIMS technology for thin and ultra-thin films deposition, UAIC (Iasi, Romania) with an expertise in colloidal lithography and reactive magnetron deposition, LGEP with an expertise in conductive properties and photovoltaic development and IRAMIS (CEA, Saclay, France) with an expertise of physical-chemistry of nanostructured materials, particles, thin films and photo-electrolysis. The final goal is to find out the best material fulfilling the set of properties required for the photo-electrolysis splitting of water for hydrogen production: visible range optical gap, chemical stability under sun radiation and immerged in electrolyte, and recombination-free of photo-carriers by size reducing. SNON project goes from the material synthesis to its validation into the lab test-bed photo-electrolytic cell with relatively high electrode area for hydrogen production. A first aim is to make dendritic ultra-thin layers and TaNOx nanoscale Islands by a parametric study of the different mixture N2/O2 plasma conditions. The second part of the work concerns the systematic characterization of these nano-materials, whether it's the thickness of a thin layer ( 10 cm ^ 2) so that the findings are significant. As part of the energy storage, this project is located in the heart of the research for new ways of improving energy efficiency of our facilities using the chemical potential. The SNON project contributes to promote the innovative method developed in the laboratories project partners: the magnetron pulsed high-power (HIPIMS - LPGP, France), pyrolysis laser/IRAMIS CEA (France) and colloidal lithography (University, Romania).