%0 Journal Article %T Co-precipitation synthesis of CaF2:Er nanocomposites and photoluminescence characterizations of electrospun polyvinyl alcohol/CaF2:Er nanofibers %A Nakhaei, Omolfajr %A Shahtahmassebi, Nasser %A Azhir, Elahe %J Indian Journal of Physics %@ 0973-1458 %D 2014