Low-cost semi-transparent copper sulfide electrode for indium-tin-oxide-free perovskite solar cells
Abstract Development of transparent electronics has been hindered by the lack of stable p-
type transparent conductive electrodes. Herein we report the fabrication of p-type copper
sulfide thin films (Cu x S) used for the first time as semitransparent electrode used as an
example in inverted-planar perovskite solar cells (PSCs). The resulting hole-transporting-
material-free and indium-tin-oxide-free (ITO-free) device showed an unprecedented 5.9%
efficiency (PCE). Morphological, structural and optoelectronic analysis of the Cu x S films …
type transparent conductive electrodes. Herein we report the fabrication of p-type copper
sulfide thin films (Cu x S) used for the first time as semitransparent electrode used as an
example in inverted-planar perovskite solar cells (PSCs). The resulting hole-transporting-
material-free and indium-tin-oxide-free (ITO-free) device showed an unprecedented 5.9%
efficiency (PCE). Morphological, structural and optoelectronic analysis of the Cu x S films …
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