Australian economic growth will depend increasingly on the provision of devices using materials designed at the molecular level. Scanning probe microscopy, which uses tips placed very close to surfaces to analyse or modify the surfaces with molecular precision, is an indispensible tool in designing such materials. In this project, scanning probe microscopy will be used to analyse and build structures on polymer solar cells in order to maximise the efficiency of the cells and build prototype nanoscale polymer devices. This will lead to the improvement in devices delivering sustainable energy production - a technology which has the promise of producing energy cheaply from sunlight.