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, Yezhou

机构：[1] School of Information Science and Engineering, Gansu University of Chinese Medicine, Lanzhou, 730000, China; [2] Department of Materials Science, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China; [3] Province Key Laboratory for Molecular Medicine of Major Diseases and Prevention and Treatment, Traditional Chinese Medicine of Gansu Colleges and Universities, Gansu University of Chinese Medicine, Lanzhou, 730000, China; [4] State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, 730000, China

第一机构：甘肃中医药大学

通信机构：[1]School of Information Science and Engineering, Gansu University of Chinese Medicine, Lanzhou, 730000, China|[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)

语种：英文

外文关键词：Color - Calcium - Niobium - Niobium compounds - Praseodymium compounds - Luminescence - 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 orange-red 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. ? 2017 Author(s).