6533b7d9fe1ef96bd126ce92

RESEARCH PRODUCT

Fast microscopic method for large scale determination of structure, morphology, and quality of thin colloidal crystals.

Ralf BiehlHans KönigA. Barreira FontechaHans Joachim SchöpeJ. Marques Hueso

subject

ChemistryScatteringbusiness.industryBragg's lawSurfaces and InterfacesCrystal structureColloidal crystalCondensed Matter PhysicsMolecular physicsLight scatteringColloidOpticsLattice (order)ElectrochemistryGeneral Materials SciencebusinessSpectroscopyVisible spectrum

description

We present a novel fast microscopic method to analyze the crystal structures of air-dried or suspended colloidal multilayer systems. Once typical lattice spacings of such films are in the range of visible light, characteristic Bragg scattering patterns are observed. If in microscopic observations these are excluded from image construction, a unique color coding for regions of different structures, morphologies, and layer numbers results. Incoherently scattering defect structures, however, may not be excluded from image construction and thus remain visible with high resolution.

10.1021/la0524972https://pubmed.ncbi.nlm.nih.gov/16460114