This course aims to introduce undergraduate students to the field of functional organic materials with tunable properties and to consolidate the concept of the microstructure/functionality correlation of materials in the broader context of Nanotechnology. Starting with the basic principles of Organic Chemistry and understanding the parameters related to the physical and chemical properties of organic compounds, the course makes an introduction to the categories of synthetic polymeric materials based on their methods of preparation and their molecular architecture. As examples of new technologies based on polymeric materials, the use of semiconducting and optically active polymeric systems in modern optoelectronic and photonic applications will be presented. Within the framework of the course, experimental demonstrations will be carried out in the molecular spectroscopy of absorption-visible and photoinduced luminescence of thin films of composite organic materials, with the active participation of the students in the Laboratory of Device Technology and Chemophysics of the Department.