The realization of technologically-advanced components to be used in optoelectronic systems is one appealing research area in modern electronics. The electronics industry has to face several problems related to the cost of materials used in the implementation of the devices and also to pursue more sustainable growth without the use of polluting processes. To address these issues, alternative materials and processes must be developed considering the device requirements. A possible solution could be the use of two-dimensional (2D) nanomaterials due to their exceptional properties, together with pollutant-free commercially available deposition techniques. This thesis investigates the printing of specifically designed graphene- and indium selenide- based inks for the realization of antennas, supercapacitors as well as photodetectors, as fundamental units of an integrated wireless sensing system.