Unlocking the potential of n-type silicon for solar cells

The rapidly-growing world market for solar cells is dominated by p-type multicrystalline silicon. Recently, however, several compelling advantages of n-type silicon have come to light. Despite this potential, n-type silicon materials made for photovoltaics are poorly understood at present, particularly in relation to the critical role of impurities. This project aims to address this knowledge gap by identifying the most important impurities, and developing methods to eliminate or reduce their impact. A unique, multi-faceted approach will be used, combining advanced electrical, chemical, nuclear and optical characterisation techniques. The new knowledge gained will underpin the development of high efficiency and low cost solar modules.