Researchers from Technische Universität München (TUM) have developed a new generation of image sensors that are more sensitive to light than the conventional silicon versions, with the added bonus of being simple and cheap to produce. They consist of electrically conductive plastics, which are sprayed on to the sensor surface in an ultra-thin layer. Even works on glass or flexible plastic films! The chemical composition of the polymer spray coating can be altered so that even the invisible range of the light spectrum can be captured. | TUM