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Up-conversion behaviors of nano-structure BaTi0.9Sn0.1O3 activated by Er3+/Yb3+ ions
Optik ( IF 3.1 ) Pub Date : 2020-03-18 , DOI: 10.1016/j.ijleo.2020.164571
Abeer Salah , Safaa K. El-Mahy , O. El-sayed , I.K. Battisha

Up-conversion materials have a great interest due to their wonderful spectroscopic properties; up-converted particles are designed by doping the host materials with optically active sensitizer and activator ions. Nano-structure barium titanate doped with tin oxide BaTi0.9Sn0.1O3 (BTSO) doped with Erbium 0.45 mol % of Er3+ and co-doped with Erbium/YtterbiumEr3+/Yb3+ ions was prepared using the modified sol-gel method. Information obtained from XRD patterns indicated the tetragonal phase present in the perovskite nano-structure prepared samples. The crystallite size (C.S) and average particle size (P.S) of BTSO:0.45E given by XRD and TEM found to be increased by the sensitizer Yb3+ ions concentration. TEM micrographs show that particles have a spherical shape with a small size within the nanostructure phase. The samples exhibit intense green up-conversion (UC) emission (seen by necked eyes) at 523 and 547 nm under the excitation of 980 nm laser diode, the emission peaks were studied as a function of the dopant concentration and laser power. The power-dependent photoluminescence confirms the two photons' absorption process. The prepared samples of BTSO doped with Er3+ and co-doped with Er3+/Yb3+ ions are promising potential candidates for the fabrication of the electro-optical devices as display devices and solid-state lasers.



中文翻译:

Er 3+ / Yb 3+离子激活的纳米结构BaTi 0.9 Sn 0.1 O 3的上转换行为

上转换材料因其出色的光谱特性而引起了人们的极大兴趣。上转换粒子是通过在主体材料中掺入旋光敏化剂和活化剂离子而设计的。使用改性溶胶-溶胶制备了掺有0.45 mol%的Er 3+并共掺有Er / Eb 3+ / Yb 3+离子的氧化锡BaTi 0.9 Sn 0.1 O 3(BTSO)掺杂的钛酸钡纳米结构。凝胶法。从XRD图获得的信息表明在钙钛矿纳米结构制备的样品中存在四方相。XRD和TEM给出的BTSO:0.45E的微晶尺寸(CS)和平均粒径(PS)被敏化剂Yb增加3+离子浓度。TEM显微照片显示,颗粒在纳米结构相内具有小尺寸的球形。在980 nm激光二极管的激发下,样品在523和547 nm处表现出强烈的绿色上转换(UC)发射(颈眼可见),研究了发射峰随掺杂剂浓度和激光功率的变化。功率相关的光致发光证实了两个光子的吸收过程。掺杂有Er 3+和共掺杂有Er 3+ / Yb 3+离子的BTSO制备样品有望成为制造作为显示设备和固态激光器的电光设备的潜在候选者。

更新日期:2020-03-18
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