Electronic do** in organic materials has remained an elusive concept for several
decades. It drew considerable attention in the early days in the quest for organic materials …

We present an overview of opto-electronic characterization techniques for solar cells
including light-induced charge extraction by linearly increasing voltage, impedance …

An organic bulk heterojunction based on a blend of a conjugated polymer PBDB‐T‐2F
(PM6) and a non‐fullerene acceptor BTP‐4F (Y6) has come forward in recent years as an …

The PM6: Y6 bulk-heterojunction (BHJ) blend system achieves high short-circuit current
(JSC) values in thick photovoltaic junctions. Here we analyse these solar cells to understand …

In organic solar cells, bimolecular recombination is a key factor limiting the device
performance and creating the need for characterization. Light‐intensity‐dependent short …

Mobile ions in perovskite photovoltaic devices can hinder performance and cause
degradation by impeding charge extraction and screening the internal field. Accurately …

Traditional inorganic semiconductors can be electronically doped with high precision.
Conversely, there is still conjecture regarding the assessment of the electronic do** …

Transient photovoltage (TPV) is a technique frequently used to determine charge carrier
lifetimes in thin-film solar cells such as organic, dye-sensitized, and perovskite solar cells. As …

Inverted organic solar cells generally exhibit a strong s‐shaped kink in the current–voltage
characteristics (JV curve) that may be removed by exposure to UV light (light‐soaking) …

Organic bulk‐heterojunction solar cells based on the newly developed nonfullerene electron
acceptors have the potential for very low‐cost energy production. However, to enable large …