Investigations of solution-processed CUO nanostructures towards the development of wavelength tunable photodetectors

Abstract

One of the ways to sense this colourful world is by sensing different wavelengths of light emitted or reflected by different objects. Presently, photodetectors are crucial devices widely used to convert the emitted photons into electrical energy. In recent times, there has been immense emphasis given to fabricating photodetectors with wavelength tunability. The research on semiconductor-based photodetectors with UV-C (200 nm-280 nm), wideband [i.e., UV-C to near-infrared (NIR) (up to 1000 nm)], and multi-band or dual-band spectra has been given immense importance for a wide range of applications by the scientific community. A common approach for fabricating broadband photodetectors is to form heterojunctions between the high and low-bandgap semiconductors. Recently, high-performance photodetectors based on hetero-junctions of perovskites and 2D materials with other semiconductors, such as ZnO, NiO, etc., have been reported.