Universitat Jaume I is situated in Castelló de la Plana, in the Mediterranean coast of Spain. With 12000 students and 1,000 employees, is a young (20 years) and dynamic University in the Comunitat Valenciana. The School of Experimental Sciences and Technology includes research activity in the areas of nanoscience, membranes, microbiology applied to agriculture, inorganic and organic chemistry and computing. The Photovoltaic and Optoelectronics Devices Group at the University Jaume I de Castelló is led by Prof. Juan Bisquert. In the last years, the group has experienced a significant growth and it is integrated by two full professors, an assistant professor, 4 post-doc researchers, 3 PhD students and 4 Master students. The group is internationally recognized by its contribution the physical characterization of nanostructured devices, particularly dye sensitized solar cells (Gratzel’s cells). Researchers from all over the world join permanently the research team or carry out long research stays in order to gain a valuable experience in the topics of expertise. More specifically, a wide knowledge exists related to the application of the technique of Electrochemical Impedance Spectroscopy for the characterization of transport and reaction in complex configurations associated to the nanoporous morphology or to the intrinsic disorder of the materials integrating different devices (amorphous phases in inorganic semiconductors and in organic materials). Recently, the group has extended its activities in order to carry out the preparation of full devices, combining the innovations in materials and devices with the wide expertise on the understanding of the governing physical chemical processes. Latest works include the exploration and analysis of the electrical properties of microbial fuel cells and the direct use of algae for production of electricity. Additionally, there is a dynamic activity related to transfer of the generated knowledge to the private sector as well as active participation in spin-off companies.