NaEuF4 nano-/submicro-crystals with various morphologies including regular nano-spheres,submicro-spheres,submicro-spindles and hexagonal submicro-rods were
Rare-earth doped upconversion(UC)phosphors,which can convert a low energy photon into a high energy photon through two-or multi-photon processes,have been a
开采引起的地表沉陷不可避免地对位于采区上方的风力发电机组造成危害,直接威胁到风电机组的安全运行。风力发电机组塔架与基础的安全是保障风能利用的关键环节,深入研究采动变
SrF2∶Eu3+ and BaF2 compounds with different morphologies,such as nanoparticles,nanodisks and microwhiskers,have been synthesized via a facile hydrothermal