Size-dependent critical transition in the origin of light emission from core–shell Si– SiO2 nanoparticles Bruno P. Falcão Department of Physics & i3N, University of Aveiro Joaquim P. Leitão Department of Physics & i3N, University of Aveiro Maria R. Soares Central Laboratory of Analysis, University of Aveiro Joana Rodrigues Department of Physics & i3N, University of Aveiro Lídia Ricardo Department of Materials Science & CENIMAT/I3N, NOVA School of Science and Technology, NOVA University Lisbon Hugo Águas Department of Materials Science & CENIMAT/I3N, NOVA School of Science and Technology, NOVA University Lisbon Rodrigo Martins Department of Materials Science & CENIMAT/I3N, NOVA School of Science and Technology, NOVA University Lisbon Rui N. Pereira Department of Physics & i3N, University of Aveiro Abstract No abstract available. PDF Published 2021-06-19 Issue Vol 11 (2020) Section Research highlights