The PolyDot project aims to foster necessary progress on frontier research that integrates a number of leading concepts in the field of photoelectrochemistry in association with new concepts from areas such as nanoscience and materials chemistry. As an example, key scientific elements of the PolyDot project are the synthesis of new molecular electronic components, such as semiconducting quantum dots, the design of self-organising functional interfaces through supramolecular interactions and the evaluation of these systems for its potential technological application as light driven energy supplier devices. Thus, the proposal is at the meeting point between supramolecular chemistry, nanostructured inorganic materials science and optoelectronic device physics. It is therefore highly multidisciplinary and involves my research group, which is working in the device physics characterisation and materials science fields. We believe that this project will develop a critical mass of expertise targeting this innovative approach towards solar powered devices allowing Europe to establish a scientific world lead and will also form a secure basis for renewable energy technological exploitation.