Journal Article Research Support, Non-U.S. Gov't X-ray diffraction X-ray scattering European Synchrotron User Organization (ESUO) HORIZON2020 Letter X-ray refraction computer programs data analysis direct bandgap materials finite-element simulation grazing-incidence X-ray diffraction grazing-incidence diffraction hetero-structure local probe X-ray diffraction nano-focus nanowire organic thin films reciprocal space refraction correction silicon wafers strain strain analysis superlattice structure surface reflection thin films transnational access (TNA)