Fig. 2

a Emission processes in the energy diagrams of lanthanide(III) ions. b Luminescent plastics using Tb(III) and Eu(III) complexes and polymethylmethacrylate. c Bioimaging using a Eu(III) complex. Reprinted with permission from Bünzli et al8. Copyright 2010 Royal Society of Chemistry. d Luminescent EVA film containing Eu(III) complexes on a silicon solar cell. Reprinted with permission from Hasegawa et al9. Copyright 2015 SPST