Growth and property enhancement of Er^(3+)-doped 0.68Pb(Mg_(1/3)Nb_(2/3))O_3-0.32PbTiO_3 single crystal  

作　　者：Wei Long Xing Chu Zengzhe Xi Pinyang Fang Xiaojuan Li Wenwu Cao 

机构地区：[1]Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi'an Technological University [2]Condensed Matter Science and Technology Institute, Harbin Institute of Technology [3]Department of Mathematics and Materials Research Institute, The Pennsylvania State University

出　　处：《Journal of Rare Earths》2018年第8期832-837,共6页稀土学报（英文版）

基　　金：Project supported by the National Basic Research Program of China(973 Program)(2013CB632900);the National Natural Science Foundation of China(51472197);the Shaanxi Provincial Education Department(14JK1333);the Key Laboratory of Optoelectronic Materials Chemistry and Physics,Chinese Academy of Sciences(2016DP173016);Shaanxi Key Laboratory of Optoelectronic Functional Materials and Devices(2015SZSJ-59-5)

摘　　要：Er^3＋-modified 0.68 Pb（Mg（1/3）Nb（2/3））O3-0.32 PbTiO3（PMN-32 PT） single crystals were grown by using the flux method. The growth mechanism of the crystal and influences of Er^3＋ ions on phase structure,electrical and optical properties were investigated. Results reveal that the crystals are still pure perovskite structure with Er3＋ ions doping, but lattice enlarges slightly. The coercive electric field is increased from 4.83 to 6.37 kV/cm for [100]-oriented crystals comparing to undoped PMN-32 PT single crystals.Moreover, the crystal exhibits upconversion emission properties. Green（531 and 552 nm） and red（670 nm） emission bands are recorded under the excitation of 980 nm diode laser, which correspond to the ^2 H（11/2）→^4 I（15/2）, ^4 S（3/2）→^4 I（15/2） and ^4 F（9/2）→^4 I（15/2） transitions of Er^3＋ ions. Our results show the feasibility of using this crystal in photoelectric multifunctional devices.Er^3＋-modified 0.68 Pb（Mg（1/3）Nb（2/3））O3-0.32 PbTiO3（PMN-32 PT） single crystals were grown by using the flux method. The growth mechanism of the crystal and influences of Er^3＋ ions on phase structure,electrical and optical properties were investigated. Results reveal that the crystals are still pure perovskite structure with Er3＋ ions doping, but lattice enlarges slightly. The coercive electric field is increased from 4.83 to 6.37 kV/cm for [100]-oriented crystals comparing to undoped PMN-32 PT single crystals.Moreover, the crystal exhibits upconversion emission properties. Green（531 and 552 nm） and red（670 nm） emission bands are recorded under the excitation of 980 nm diode laser, which correspond to the ^2 H（11/2）→^4 I（15/2）, ^4 S（3/2）→^4 I（15/2） and ^4 F（9/2）→^4 I（15/2） transitions of Er^3＋ ions. Our results show the feasibility of using this crystal in photoelectric multifunctional devices.

关 键 词：PMN-PT single crystal Er^3＋ ion doping Flux method UPCONVERSION Rare earths 

分 类 号：O78[理学—晶体学]