Spatially Resolved Photocurrent Mapping of Nanowire Array Solar Cells for Analysis of Factors Affecting Cell Efficiency
This thesis develops a laser-based technique for spatially resolving the photocurrent from nanowire array solar cells. The technique has been demonstrated to provide information on processing induced defects e.g. poor device contacts, and defects related to the sample e.g. missing nanowires, resolving features down to ~800nm. Moreover, the technique provides information that can be used to relate