Cubic: Versus hexagonal-phase, size and morphology effects on the photoluminescence quantum yield of NaGdF4:Er3+/Yb3+upconverting nanoparticles

1. Quintanilla, M.
2. Hemmer, E.
3. Marques-Hueso, J.
4. Rohani, S.
5. Lucchini, G.
6. Wang, M.
7. Zamani, R.R.
8. Roddatis, V.
9. Speghini, A.
10. Richards, B.S.
11. Vetrone, F.