Transport dynamics and fluctuations in active bulk heterojunction polymer solar cells

Abstract

Abundant and economical energy in its different forms is the life blood of modern civilizations. Natural gas, coal and oil provides almost 85% of the total energy consumption. However world’s leading geologists have suggested that the consumption of oil has already reached its peak [1]. As the energy demand is increasing day by day (13 terawatts (TW) continuous world energy consumption in 2005 to 30 TW projected demand in 2050), the depletion of oil and other natural resources will create a gap of 17 -20 TW. This is a wakeup call to the global civilization to think of an alternative, renewable energy resources to make up the demand. Solar energy source is a clean alternative that can meet some of these challenges. Scaling up the solar energy efforts is needed to make it a viable alternative.