Kinetic Monte Carlo (KMC) techniques for disordered organic bulk heterojuctions

Kinetic Monte Carlo (KMC) techniques for disordered organic bulk heterojuctions

  • Developed a Kinetic Monte Carlo (KMC) technique for modeling average current and its fluctuations in a disordered organic bulk heterojuction matrix. The experimental results are the first measurements of noise spectrum in organic solar cells, and using general arguments combined with KMC simulations, we have been to explain all of the features in the noise spectrum. This includes a very unusual finite frequency peak, that we argue arises from dynamical space-charge effects. This work is carried out in close collaboration with the experimental group of Prof. K.S.Narayan at JNCASR.