title: Long phosphorescent Ca2SnO4 with minuscule rare earth dopant concentration.
abstract: Rare-earth doped Ca2SnO4 phosphors were synthesized using a conventional solid state reaction method. The red phosphorescence of Eu(3+) was observed in this system with persistence time. In the as-prepared samples, the doped rare earth ions occupied both Ca and Sn sites in the host lattice. The longest phosphorescent persistence property can be achieved for the Ca2SnO4 phosphors with a 0.1% Eu dopant. Depending on the doped rare earth ions, afterglow emissions of various colors were observed.
authors: Center for Transdisciplinary Research, Niigata University, 8050 Ikarashi, 2-no-cho, Niigata, 950-2181, Japan. tishigaki@eng.niigata-u.ac.jp
authors: Tadashi
authors: T
authors: Ishigaki
authors: Akiko
authors: A
authors: Torisaka
authors: Kentarou
authors: K
authors: Nomizu
authors: Puttaswamy
authors: P
authors: Madhusudan
authors: Kazuyoshi
authors: K
authors: Uematsu
authors: Kenji
authors: K
authors: Toda
authors: Mineo
authors: M
authors: Sato