Polyfluorene is a polymer with formula n, consisting of fluorene units linked in a linear chain — specifically, at carbon atoms 2 and 7 in the standard fluorene numbering. It can also be described as
This is the photoluminescence of two very similarly structured polyfluorene derivatives. The one on the left (purple) is a copolymerization of a fluorene derivative, benzene and oxadiazole molecules and the one on the right (light green) has the structure directly below this image.
A laboratory scale polymer:PCBM blend solar cell. Polyfluorenes are utilized in similar devices.
An organic solar cell or plastic solar cell is a type of photovoltaic that uses organic electronics, a branch of electronics that deals with conductive organic polymers or small organic molecules, for
Fig. 2. Organic Photovoltaic manufactured by the company Solarmer.
Fig. 5: Sketch of a single layer organic photovoltaic cell
Fig. 6: Sketch of a multilayer organic photovoltaic cell.
Fig. 7: Sketch of a dispersed junction photovoltaic cell