NOVELTY - Assembly comprises a non-metallic substrate, an electrically conductive layer, as a rear electrode, extending over a surface of the substrate, and an absorbent layer that has a thickness of 1-3 mu m and is obtained by liquid deposition of solid nanoparticles of negative surface charge from a polar dispersion medium form, after densification step by sintering, a composition layer, where the assembly comprises, on the areas of a rear surface of the electrode that are not covered by the absorbing layer, default areas, non-active areas covered by a continuous film, and a short-circuit proof film.    USE - The assembly is useful for a photovoltaic cell (claimed).    ADVANTAGE - The assembly reduces the manufacturing cost of the photovoltaic cell, and improves photovoltaic performances of the photovoltaic cell by minimizing the risks of short-circuits on the rear electrode.    DETAILED DESCRIPTION - Photovoltaic cell assembly comprises a non-metallic substrate, an electrically conductive layer, as a rear electrode, extending over a surface of the substrate, an absorbent layer that has a thickness of 1-3 mu m and is obtained by liquid deposition of solid nanoparticles of negative surface charge from a polar dispersion medium so as to form, after densification step by sintering, a composition layer of formula (Cua; Zn(b-y/2); Sn(c-x-y/2); 1X+4x; 2X+3y; Ch(a/2+b+2c)) (A) or (Cu(a-y); Zn(b-y); Sn(c-x); 1X+4x; 2X+3y; Ch(a/2+b+2c)) (B), where the assembly comprises, on the areas of a rear surface of the electrode opposite to the substrate, which are not covered by the absorbing layer, default areas, non-active areas covered by a continuous film with a thickness of 10-350 nm, a short-circuit proof film based on a p type semiconductor compound that is chalcogenide compound of a metallic cation containing copper with an oxidation state of +1.    Ch = S, Se, Sd or Se4-d;    1X+4 = germanium cation, molybdenum cation or lead cation;    2X+3 = gallium cation, indium cation or molybdenum cation;    a = 1.7-2.3;    b, c = 0.7-1.3;    d = 0-4;    x = 0-0.5; and    y = 0-0.5.    INDEPENDENT CLAIMS are included for:    (1) a photovoltaic cell comprising the assembly, a n-type semiconductor layer and a transparent electrode made of electrically conductive material; and    (2) fabricating an assembly for photovoltaic cell comprising forming electrically conductive layer on a surface of the substrate, forming an absorbent layer over a surface of the rear electrode opposite to the substrate and chemically depositing a continuous film (Cu2-iS), of a precursor film, on a surface of the rear electrode, where i is 0 and 1.