Breaking the Nd3+-sensitized upconversion nanoparticles myth about the need of onion-layered structures

Nestor Estebanez-Bloem, Juan Ferrera-Gonzalez, Laura Frances-Soriano, Raul Arenal, Maria Gonzalez-Bejar, Julia Perez-Prieto Nanoscale 10, 12297-12301 (2018).