Down-shifting by energy transfer in Dy3+-Tb3+ co-doped YF3-based sol-gel nano-glass-ceramics for photovoltaic applications

1. Santana-Alonso, A.
2. Yanes, A.C.
3. Méndez-Ramos, J.
4. Del-Castillo, J.
5. Rodríguez, V.D.