Open AccessNanoscale mapping of ZnO–TiO2 up-conversion phosphor containing Yb3+ and Er3+
Author(s) -
Toshihiro aka,
Takahito Imai,
Takahiko Ban,
Shinichi Yamamoto
Publication year - 2020
Publication title -
materials research express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 35
ISSN - 2053-1591
DOI - 10.1088/2053-1591/ab89db
Subject(s) - phosphor , materials science , nanoscopic scale , ion , crystal structure , analytical chemistry (journal) , emission intensity , crystal (programming language) , decomposition , luminescence , crystallography , nanotechnology , optoelectronics , chemistry , organic chemistry , chromatography , computer science , programming language
Up-conversion phosphors have attracted considerable attention for their visible-light emission. In this study, a ZnO–TiO 2 up-conversion phosphor containing Yb 3+ and Er 3+ ions was prepared; its emission characteristics and crystal structure were analyzed, and its nanoscale elemental mapping was examined. The metal organic decomposition (MOD) method was used to fabricate the samples. After firing the sample at 1000 °C, the emission intensity showed a maximum when the molar ratio was Ti/Zn/Yb/Er = 1/1/0.06/0.02. Finally, the function of each element was considered from the viewpoint of the crystal structure and nanoscale mapping.