The physical meaning of charge extraction by linearly increasing voltage transients from organic solar cells

Charge carrier extraction by linearly increasing voltage: Analytic framework and ambipolar transients

Organic Charge Carriers for Perovskite Solar Cells.

The photovoltaic field is currently experiencing the "perovskite revolution". These materials have been known for decades, but only recently have they been applied in solid-state solar cells to obtain outstanding power conversion efficiencies. Given that the variety of perovskites used so far is limited, a lot of attention has been devoted to the development of suitable organic charge-transport...

Nonequilibrium charge dynamics in organic solar cells

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A nanoscale study of charge extraction in organic solar cells: the impact of interfacial molecular configurations.

In the optimization of organic solar cells (OSCs), a key problem lies in the maximization of charge carriers from the active layer to the electrodes. Hence, this study focused on the interfacial molecular configurations in efficient OSC charge extraction by theoretical investigations and experiments, including small molecule-based bilayer-heterojunction (sm-BLHJ) and polymer-based bulk-heteroju...

Impact of charge transport on current–voltage characteristics and power-conversion efficiency of organic solar cells

This work elucidates the impact of charge transport on the photovoltaic properties of organic solar cells. Here we show that the analysis of current-voltage curves of organic solar cells under illumination with the Shockley equation results in values for ideality factor, photocurrent and parallel resistance, which lack physical meaning. Drift-diffusion simulations for a wide range of charge-car...