Abstract: A hybrid organic-inorganic conductive thin film comprising an organic layer and a plurality of inorganic particles is disclosed, wherein the plurality of inorganic particles comprises a plurality of Cu particles that have an average particle size in a range between 20 nm and 45 nm. This hybrid organic-inorganic conductive thin film is allowed to be used as a hole injection layer (HIL) or a hole transport layer (HTL), so as to be applied in the manufacture of QLED element, OLED element, organic photovoltaic element, hybrid inorganic-organic photovoltaic element, O-FET, O-TFT, or photoreceptor. Moreover, experiment data have proved that, compared to the regular OLED element, the OLED element having the HIL made of the hybrid organic-inorganic conductive thin film has a significant enhancement in device efficiency.