文献类型：期刊文献

英文题名：Niobium-oxygen octahedra and oxygen interstitial defect emissions in calcium niobate matrix and its color manipulation via doping Pr3+

作者：Wu, Chen[1,2];Li, Yezhou[1];Gong, Hongxia[3];Gao, Jianping[1];Wang, Zhaofeng[4]

第一作者：Wu, Chen

通信作者：Li, YH[1]

机构：[1]Gansu Univ Chinese Med, Sch Informat Sci & Engn, Lanzhou 730000, Peoples R China;[2]Lanzhou Univ, Sch Phys Sci & Technol, Dept Mat Sci, Lanzhou 730000, Peoples R China;[3]Gansu Univ Chinese Med, Tradit Chinese Med Gansu Colleges & Univ, Major Dis & Prevent & Treatment, Prov Key Lab Mol Med, Lanzhou 730000, Peoples R China;[4]Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China

第一机构：甘肃中医药大学信息工程学院（教育技术中心）

通信机构：[1]corresponding author), Gansu Univ Chinese Med, Sch Informat Sci & Engn, Lanzhou 730000, Peoples R China.|[10735b4fd93d6e0fa5aa4]甘肃中医药大学信息工程学院（教育技术中心）;[10735]甘肃中医药大学;

年份：2017

卷号：7

期号：2

外文期刊名：AIP ADVANCES

收录：;EI(收录号：20170903404343);Scopus(收录号：2-s2.0-85014020194);WOS:【SCI-EXPANDED(收录号:WOS:000395898800018)】；

基金：This work is supported by the grants from Gansu University of Chinese Medicine (no. 2305137502 and ZQ2015-3). Z. Wang would like to thank the support from CAS Pioneer Hundred Talents Program.

语种：英文

外文关键词：Calcium - Calcium compounds - Color - Luminescence - Niobium - Niobium compounds - Oxygen

摘要：The luminescent properties of Ca2Nb2O7 matrix and Ca2Nb2O7: Pr3+ were studied in this work. In addition to the emission band from NbO6 octahedra, the orangered emission aroused by oxygen interstitial defects was observed in Ca2Nb2O7. When Pr3+ was introduced, both of the matrix emission and the characteristic Pr3+ luminescence could appear simultaneously under suitable excitation wavelength. By further adjusting the doping concentration, color manipulation from blue-green to pink and red could be realized in Ca2Nb2O7: Pr3+. In particular, a warm white light could be achieved when doping 0.1% Pr3+. Based on the luminescent results, the underlying mechanisms were discussed and proposed. The color manipulation results suggest that Ca2Nb2O7: Pr3+ is promising for various fields related to lighting, displaying, and imaging. (C) 2017 Author( s).