Light harvesting strategies for large area, stable and efficient organic solar cells

Abstract

In the present times when energy needs have multiplied, it is essential to explore alternative sources of energy. Non-renewable energy sources like natural gas, petroleum and coal account for a major share in the total energy consumption. But a sustainable energy solution cannot be achieved from such sources. Renewable sources like the wind and sun need to become the answers to the energy needs. The energy emitted from sun in a single year is several exajuoles (1018 Joules), which can sufficiently bridge this energy deficit. Unfortunately, a majority of this energy goes unutilized. Hence there is a need to investigate this imbalance so as to facilitate efficient utilization and storage of this form of energy. In this regard solar cells have increasingly become a feasible option to tackle the energy crisis.