Comparative study of Al-doped ZnO films deposited by sol¿gel and by sputtering using a sintered target from ZnO nanoparticles synthesized by sol¿gel Francisco García-Salinas; Alma Vázquez-Durán; José Martín Yáñez-Limón;

Judd¿Ofelt and luminescence study of Dysprosium-doped lithium borosilicate glasses for lasers and w-LEDs Ismail Kashif; Asmaa Ratep;