Ultraviolet and visible emissions of Er3+ in monoclinic KYb(WO4)2 single crystals

Synthesis and characterization of Er3+ doped CaF2 nanoparticles

“…In addition to these RE ions mentioned above, the erbium (Er) element is one important and particular RE ion with rich energy levels, especially the plenty of upconversion emission channels. Many researches [16][17][18][19][20][21][22][23] based on a number of nanometer-sized host doped with Er 3+ ion were carried out, and the host matrix dependence of luminescence were studied. Considering the particular advantages of CaF 2 , especially its properties of high transparence and low phonon energy, the researches combining the active ion Er and host CaF 2 have drawn increasing interests.…”