Cooper, Carl Arnou, Panagiota Wright, Lewis Ulicna, Sona Walls, Michael Malkov, Andrei Bowers, Jake An innovative approach for fabrication of Cu2ZnSnSe4 absorber layers using solutions of elemental metal powders An innovative approach has been demonstrated for the deposition of Cu2ZnSnSe4 (CZTSe) absorber layers. Using a unique, safe solvent combination, moving away from hydrazine, elemental Cu, Zn, Sn and S/Se can be fully dissolved at ambient conditions, with the composition easily controlled. The preparation and the spray deposition of these solutions are performed in air, allowing a quick, easy and inexpensive process. Upon selenisation, large crystals are observed which are identified as the CZTSe kesterite phase using X-ray diffraction and Raman, the latter showing no distinctive signs of any binary or ternary secondary phases. Using this method, CZTSe absorber layers have been prepared for use in thin-film solar cells reaching efficiency of 3.2%. With further device optimisation, improved device performance will be achieved. Copper zinc tin selenide;Solution process;Spray-coating;Kesterite;Chemical Sciences not elsewhere classified 2017-02-02
    https://repository.lboro.ac.uk/articles/journal_contribution/An_innovative_approach_for_fabrication_of_Cu2ZnSnSe4_absorber_layers_using_solutions_of_elemental_metal_powders/9394271