Preparation and up-conversion fluorescence of rare earth (Er3+ or Yb3+/Er3+)-doped TiO2 nanobelts

被引：50
作者：
Ji, Tianhao [1 ]
Liu, Yang [1 ]
Zhao, Hui [1 ]
Du, Haiyan [1 ]
Sun, Jiayue [1 ]
Ge, Guanglu [2 ]
机构：
[1] Beijing Technol & Business Univ, Coll Chem & Environm Engn, Beijing 100048, Peoples R China
[2] Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2010年 / 183卷 / 03期
基金：
中国国家自然科学基金; 北京市自然科学基金;
关键词：
TiO2; nanobelts; Rare earth doping; Hydrothermal; Up-conversion; OXYFLUORIDE GLASS-CERAMICS; DOPED ZNO NANOWIRES; ENERGY-TRANSFER; TITANATE; OXIDE; PHOTOLUMINESCENCE; LUMINESCENCE; IONS; SIZE; LAF3;
D O I：
10.1016/j.jssc.2010.01.004
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Anatase TiO2 nanobelts doped with rare earth (RE) ions Yb3+, Er3+ or Yb3+/Er3+ have been prepared using layered titanate nanobelts (LTO NBs) with RE ions as the precursor obtained by ion-exchange between LTO NBs and RE ions under hydrothermal process. Various measurement results demonstrate that the RE ions have doped into the lattice of TiO2, and the Er3+. or Yb3+/Er3+ doped nanobelts show strong visible up-conversion (UC) fluorescence under 980 nm excitation The UC emission intensity of LTO NBs embedded with Er3+ or Yb3+/Er is slightly higher than that of the corresponding TiO2 nanobelts doped with RE ions, whereas higher RE doping content leads to the decrease of UC emission intensity due to the concentration-quenching effect (C) 2010 Elsevier Inc All rights reserved
引用
收藏
页码：584 / 589
页数：6
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