0000000000643359

AUTHOR

Ulrich W. Paetzold

showing 2 related works from this author

Correlating Cathodoluminescence and Kelvin Probe Force Microscopy Measurements of Methylammonium-Free 2D Ruddlesden Popper Passivated Perovskite Abso…

2021

Kelvin probe force microscopeMaterials scienceMicroscopyAnalytical chemistryCathodoluminescencePerovskite (structure)Proceedings of the nanoGe Fall Meeting 2021
researchProduct

Two birds with one stone: dual grain-boundary and interface passivation enables >22% efficient inverted methylammonium-free perovskite solar cells

2021

Advancing inverted (p���i���n) perovskite solar cells (PSCs) is key to further enhance the power conversion efficiency (PCE) and stability of flexible and perovskite-based tandem photovoltaics. Yet, the presence of defects at grain boundaries and in particular interfacial recombination at the perovskite/electron transporting layer interface induce severe non-radiative recombination losses, limiting the open-circuit voltage (VOC) and fill factor (FF) of PSCs in this architecture. In this work, we introduce a dual passivation strategy using the long chain alkylammonium salt phenethylammonium chloride (PEACl) both as an additive and for surface treatment to simultaneously passivate the grain b…

Materials sciencePassivationBand gapInterface (computing)02 engineering and technologyActivation energy010402 general chemistryperovskite solar cells01 natural sciences7. Clean energyPhotovoltaicsEnvironmental ChemistryEngineering & allied operationsPerovskite (structure)Renewable Energy Sustainability and the Environmentbusiness.industryEnergy conversion efficiency021001 nanoscience & nanotechnologyPollution0104 chemical sciencesDual (category theory)Nuclear Energy and EngineeringOptoelectronicsCharge carrierGrain boundaryddc:6200210 nano-technologybusiness
researchProduct