Daniel Balzer
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View article: Delocalisation enables efficient charge generation in organic photovoltaics, even with little to no energetic offset
Delocalisation enables efficient charge generation in organic photovoltaics, even with little to no energetic offset Open
Simulations reveal that both charge and exciton delocalisation can significantly improve the efficiency of charge generation in organic photovoltaics and explain the failure of classical hopping approaches.
View article: Delocalisation enables efficient charge generation in organic photovoltaics, even with little to no energetic offset
Delocalisation enables efficient charge generation in organic photovoltaics, even with little to no energetic offset Open
Organic photovoltaics (OPVs) are promising candidates for solar-energy conversion, with device efficiencies continuing to increase. However, the precise mechanism of how charges separate in OPVs is not well understood because low dielectri…
View article: Fast and Accurate Simulations of Partially Delocalised Charge Separation in Organic Semiconductors
Fast and Accurate Simulations of Partially Delocalised Charge Separation in Organic Semiconductors Open
Accurate computational screening of candidate materials promises to accelerate the discovery of higher-efficiency organic photovoltaics (OPVs). However, modelling charge separation in OPVs is challenging because accurate models must includ…
View article: Mechanism of delocalisation-enhanced exciton transport in disordered organic semiconductors
Mechanism of delocalisation-enhanced exciton transport in disordered organic semiconductors Open
Large exciton diffusion lengths generally improve the performance of organic semiconductor devices, since they enable energy to be transported farther during the exciton lifetime. However, the physics of exciton motion in disordered organi…
View article: Jumping kinetic Monte Carlo: Fast and accurate simulations of partially delocalised charge transport in organic semiconductors
Jumping kinetic Monte Carlo: Fast and accurate simulations of partially delocalised charge transport in organic semiconductors Open
Developing devices using disordered organic semiconductors requires accurate and practical models of charge transport. In these materials, charge transport occurs through partially delocalised states in an intermediate regime between local…
View article: Even a little delocalization produces large kinetic enhancements of charge-separation efficiency in organic photovoltaics
Even a little delocalization produces large kinetic enhancements of charge-separation efficiency in organic photovoltaics Open
In organic photovoltaics, charges can separate efficiently even if their Coulomb attraction is an order of magnitude greater than the available thermal energy. Delocalization has been suggested to explain this fact, because it could increa…
View article: Even a little delocalisation produces large kinetic enhancements of charge-separation efficiency in organic photovoltaics
Even a little delocalisation produces large kinetic enhancements of charge-separation efficiency in organic photovoltaics Open
In organic photovoltaics, charges can separate efficiently despite their Coulomb attraction being an order of magnitude greater than the available thermal energy. Delocalisation has been suggested to explain this fact, because it could inc…
View article: Delocalised kinetic Monte Carlo for simulating delocalisation-enhanced charge and exciton transport in disordered materials
Delocalised kinetic Monte Carlo for simulating delocalisation-enhanced charge and exciton transport in disordered materials Open
The first three-dimensional model of transport in moderately disordered materials shows that a little delocalisation can dramatically enhance mobilities.
View article: Partial delocalisation enhances the transport of charges and excitons
Partial delocalisation enhances the transport of charges and excitons Open
Charge transport is well understood in both highly ordered materials (band conduction) or highly disordered ones (hopping conduction). In moderately disordered materials---including many organic semiconductors---the approximations valid in…