Infrared-sensitive Cu2O/CuO nanocomposite films synthesized via vacuum condensation and atmospheric annealing

This work investigates the sensor properties of Cu2O/CuO nanocomposite films, obtained through vacuum deposition followed by atmospheric annealing. It was established that the proposed synthesis method allows for the creation of biphase nanocomposite films with structural element sizes around 20 nm. The obtained film structures are shown to be sensitive to infrared radiation and can even react to human body thermal radiation. Indications of additional sensitivity mechanisms within the sensor layers were observed, and physical considerations regarding these mechanisms are proposed.