Two-year time slot for solar

Photovoltaics may have gained visibility and credibility as a viable clean energy technology, but the jury is still out on what precisely will be the most efficient, cost effective and reliable materials route to solar power. Choices keep widening and the current silicon shortage could have just created the ‘supply apprehension gap’ needed for newer materials to edge into silicon's dominance. The current favourites are hybrid compounds such as CIGS, while a new player - the single wall carbon nano tubes (CNT) is also a possible contender.