INFLPR research on Front Cover in Nanoscale Journal

The study "Imaging dopant distribution across complete phase transformation by TEM and upconversion emission", Nanoscale, 2019, 11, 16743 - 16754 is promoted on the front cover of the journal Nanoscale (FI=6.9), vol. 11, issue 36.

The distribution of a lanthanide (Er) dopant, be this enriched, depleted or surface segregated, is associated to its optical response across full tetragonal to monoclinic phase transformation of ZrO2. This illustration depicts how the combination of upconversion (UPC) emission and advanced transmission electron microscopy (TEM) disentangles the structural phases and UPC emission determined by Er distribution in mixed phase nanoparticles. The approach can be extended to imaging subtle deviation from uniform doping in various functional nanomaterials.