When photoluminescence, electroluminescence, and open-circuit voltage diverge – light soaking and halide segregation in perovskite solar cells
Firouzeh Ebadi, Bowen Yang, YeonJu Kim, Raheleh Mohammadpour, Nima Taghavinia, Anders Hagfeldt, Wolfgang Tress
Abstract
Changes in<italic>V</italic><sub>oc</sub>for the mixed halide composition are not correlated with the emergence of the low-gap phase, confirming that this phase is not the sole culprit for a low and unstable<italic>V</italic><sub>oc</sub>.
Topics & Concepts
HalideElectroluminescencePerovskite (structure)PhotoluminescenceOpen-circuit voltageMaterials sciencePhase (matter)OptoelectronicsVoltageCrystallographyChemistryPhysicsInorganic chemistryNanotechnologyLayer (electronics)Organic chemistryQuantum mechanicsPerovskite Materials and ApplicationsChalcogenide Semiconductor Thin FilmsQuantum Dots Synthesis And Properties