Multilayer Diffraction Reveals That Colloidal Superlattices Approach the Structural Perfection of Single Crystals
Stefano Toso, Dmitry Baranov, Davide Altamura, Francesco Scattarella, Jakob C. Dahl, Xingzhi Wang, Sergio Marras, A. Paul Alivisatos, Andrej Singer, Cinzia Giannini, Liberato Manna
Abstract
and PbS nanomaterials. The multilayer diffraction method requires only a laboratory-grade diffractometer and an open-source fitting algorithm for data analysis. The average nanocrystal displacement of 0.33 to 1.43 Å in the studied superlattices provides a figure of merit for their structural perfection and approaches the atomic displacement parameters found in traditional crystals.
Topics & Concepts
DiffractionSuperlatticeNanocrystalSuperstructureMaterials scienceDiffractometerNanomaterialsNanotechnologyInterference (communication)ScatteringOpticsCrystallographyOptoelectronicsPhysicsChemistryComputer scienceComputer networkScanning electron microscopeThermodynamicsComposite materialChannel (broadcasting)Quantum Dots Synthesis And PropertiesCrystal Structures and PropertiesX-ray Diffraction in Crystallography