ACS Applied Energy Materials · 2019 · 11 citations · 67 references
Natural SciencesMaterials EngineeringMaterials ScienceInorganic ChemistryMaterials ChemistryThin FilmsPerovskite MaterialsPhotovoltaic DevicesPhotovoltaic MaterialsSemiconductor SurfacesSolar Cell MaterialsSolar CellsCompositional MappingCrystallographic OrientationCrystallographic Preferred OrientationMesoporous MaterialsPerovskite Solar CellsSecondary Ion Mass SpectrometryTime-of-flight Mass SpectrometryTime-of-flight Secondary Ion Mass Spectrometry
The incorporation of monovalent silver (Ag+) cations into methylammonium lead bromide (CH3NH3PbBr3) perovskite films leads to a strongly preferred (001) crystallographic orientation on a wide variety of substrates, ranging from glass to mesoporous TiO2. CH3NH3PbBr3 films deposited without Ag+ exhibit only a weakly preferred (011) orientation. Compositional maps and depth profiles from time-of-flight secondary ion mass spectrometry (TOF-SIMS) reveal Ag+ segregated to grain boundaries and interfaces. In photovoltaic devices (PVs), addition of Ag+ to MAPBr films resulted in poorer device performance, most likely because of the observed Ag+ segregation in the films.
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Constantinos C. Stoumpos, Christos D. Malliakas, Mercouri G. Kanatzidis · Inorganic Chemistry · 2013 · 5.4K citations
Shape Control of Colloidal Metal Nanocrystals
Andrea R. Tao, Susan E. Habas, Peidong Yang · Small · 2008 · 2.4K citations