文献类型：期刊文献

英文题名：Bright white upconversion luminescence from Er3+/Tm3+/Yb3+-doped titanate-based glasses prepared by aerodynamic levitation method

作者：Zhang, Minghui[1];Yu, Jianding[1];Jiang, Wan[2];Liu, Yan[1];Ai, Fei[1];Wen, Haiqin[1];Jiang, Meng[3];Yu, Huimei[4];Pan, Xiuhong[1];Tang, Meibo[1];Gai, Lijun[1]

机构：[1]Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China;[2]Donghua Univ, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China;[3]Shanghai Univ Med & Hlth Sci, Sch Art & Sci, Shanghai 201318, Peoples R China;[4]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2017

卷号：72

起止页码：447

外文期刊名：OPTICAL MATERIALS

收录：;EI(收录号：20172703874659);WOS:【SCI-EXPANDED(收录号:WOS:000413880500065)】；

基金：This work was supported by National Nature Science Foundation of China (No. 51602330, No. 51472263, No. 51672303), Shanghai Sailing Program (16YF1413100), National Key Research Program of China (2016YFF0101705), and the Innovative Fund of Shanghai Institute of Ceramics, Chinese Academy of Science (Y37ZC4140G).

语种：英文

外文关键词：White upconversion luminescence; Aerodynamic levitation; Titanate-based glasses; Color coordinate

摘要：Aerodynamic levitation method was employed to prepare Er3+/Tm3+/Yb3+-doped titanate-based glasses. DTA results show that the glass performs high thermal stability with the glass transition temperature of 799 degrees C. The interaction among rare earth ions has been discussed by adjusting the relative concentration. Er3+ ions can quench the upconversion luminescence of Tm3+ ions. Tm3+ ions play a strong role in quenching the emissions of Er3+ and Tm3+ when the content of Tm3+ ions is greater than or equal 0.05. From the view of the ratio of red emission to green emission, Tm3+ ions can improve the red emission of Er3+ ions to some extent in contrast with the green emissions of Er3+ ions. 980 nm incident laser can be efficiently absorbed by Yb3+ ions. The relative intensity of red, green, and blue upconversion luminescence has been tuned to obtain white light. The composition with white upconversion luminescence of the color coordinate (0.291, 0.3292) has been found. Moreover, white upconversion luminescence mechanism is a two-photon process of ET, ESA, and cooperative sensitization. Rare earth ions doped titanate-based glasses with bright upconversion luminescence perform potential applications in color display, back light, et al. (C) 2017 Elsevier B.V. All rights reserved.