| 摘要 |
The present invention provides a compact, coarse-grained crystalline thin layer of absorbing material consisting essentially of sulfide(s) and selenide(s) of Cu, Zn and Sn, with fewer defects and preferably with an improved homogeneity of composition and/or a reduced secondary phase content, by carrying out a method of double annealing, in predefined atmospheres, of a thin layer of particles of one said absorbing material made from sulfide(s) of copper, zinc and tin, preferably CZTS, deposited in the form of a hydroalcoholic dispersion of particles in which the coarse agglomerates have been eliminated, on a substrate covered with molybdenum (Mo), said thin annealed absorber layer deposited on said substrate Mo giving improved photovoltaic performances to a photovoltaic device comprising same. |
