TY - JOUR AU - Peter Dudenas AU - Adam Z Weber AU - Ahmet Kusoglu AB -
Grazing-incidence X-ray scattering is a common technique to elucidate nanostructural information for thin-film samples, but depth-resolving this nanostructure is difficult using a single or few images. An in situ method to extract film thickness, the index of refraction and depth information using scattering images taken across a range of incident angles is presented here. The technique is described within the multilayer distorted-wave Born approximation and validated using two sets of polymer thin films. Angular divergence and energy resolution effects are considered, and implementation of the technique as a general beamline procedure is discussed. Electric-field-intensity-modulated scattering is a general technique applicable to myriad materials and enables the acquisition of depth-sensitive information in situ at any grazing-incidence-capable beamline.
BT - Journal of Applied Crystallography DA - 11/2020 DO - 10.1107/S160057672001304710.1107/S1600576720013047/ge5076sup1.pdf IS - 6 LA - eng N2 -Grazing-incidence X-ray scattering is a common technique to elucidate nanostructural information for thin-film samples, but depth-resolving this nanostructure is difficult using a single or few images. An in situ method to extract film thickness, the index of refraction and depth information using scattering images taken across a range of incident angles is presented here. The technique is described within the multilayer distorted-wave Born approximation and validated using two sets of polymer thin films. Angular divergence and energy resolution effects are considered, and implementation of the technique as a general beamline procedure is discussed. Electric-field-intensity-modulated scattering is a general technique applicable to myriad materials and enables the acquisition of depth-sensitive information in situ at any grazing-incidence-capable beamline.
PY - 2020 SP - 1484 EP - 1492 ST - J Appl Crystallography T2 - Journal of Applied Crystallography TI - Electric-field-intensity-modulated scattering as a thin-film depth probe VL - 53 ER -