Recent searches on carbon nanotubes lead in within INFN (GINT experiment) demonstrate enunciated characteristic of fotoconductivity of such material if illuminated from radiation, in particular from UV. Moreover the material can be easily managed to cover wide sensitive areas and finely structured through nanolitography. Therefore the way is open to a great number of applications in which UV, visible and near IR (150-1100 nm) radiation detectors cover particular importance. The applications would go from space physics (IR and UV detectors) to the high energies physics (Cerenkov detectors) to the UHECR physics (fluorescence light detectors) and to the medical instrumentation (not ionizing radiations).