Abstract
This paper studies the interplay between charge carrier mobility and the related recombination processes exhibited within a bulk heterojunction-disordered hopping organic solar cell, using drift-diffusion simulations. The investigation focuses on the recombination order, the current-voltage properties and the charge carrier mobility’s active involvement in the recombination processes within an organic solar cell. The outcome of the investigation based on the drift diffusion simulation highlights the fact that the recombination characteristics are altered by charge carrier mobility. There exists a normalised mobility, which averages the progression of slow to fast charge carriers transforming the electrons and holes mobilities into an optimal mobility, which significantly increases the efficiency for a variety of bulk heterojunction structure types by significantly lowering the extent of recombination.
Published Version
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