Cerium(3+);lanthanum(3+);terbium(3+);phosphate

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 镧系含氧阴离子化合物
• 英文名称: Cerium(3+);lanthanum(3+);terbium(3+);phosphate
• 化学式: 0Ce*0La*O₄P*0Tb
• 分子量: 237.426
• InChiKey: LCNGMNOOVCOWOM-UHFFFAOYSA-K

计算性质

• 辛醇/水分配系数(LogP)：
  -2.82
• 重原子数：
  8
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  86.2
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  磷酸 、 三氯化铈 、 氯化镧 、 氯化铽(III) 以 乙醇 为溶剂， 生成 Cerium(3+);lanthanum(3+);terbium(3+);phosphate
  参考文献：
  名称：

  基于离子液体的发光 LaPO4:Ce,Tb 纳米晶体的合成、表征和应用

  摘要：

  LaPO4:Ce,Tb 作为纳米级磷光体是通过在离子液体中的微波加速合成制备的。基本方法产生非团聚纳米晶体，尺寸为 9-12 nm，量子产率为 70%（Tb 相关发射）和 90%（Ce/Tb 相关发射）。基于综合的基本概念，面向应用的方面是重点。在添加油胺的驱动下，首先，可以引发从合成的极性相到非极性烷烃的相转移。作为第二个方面，将标题化合物在乙醇中的分散体应用于聚合物基材上透明发光层的喷墨印刷。最后，使用 LaPO4:Ce,Tb 的乙醇分散体来实现完全透明的介质阻挡放电 (DBD) 灯，作为“发光窗口”的原型。(© Wiley-VCH Verlag GmbH & Co.

  DOI：

  10.1002/ejic.200700892

文献信息

• Construction of Highly Transparent Plasma Display Devices Using Hydrothermally Synthesized Green-Emitting LaPO4:Ce,Tb Nanophosphors
  作者：Woo-Seuk Song、Yong-Seog Kim、Heesun Yang

  DOI：10.1149/1.3556614

  日期：——

  Green-emitting rod-type LaPO 4 :Ce,Tb nanophosphors were produced by a simple, low-temperature hydrothermal route and these as-synthesized nanophosphors were subsequently annealed at 1000°C. The crystallographic structures and emission properties of the as-synthesized and annealed nanophosphors were compared. After preparing the nanophosphor dispersions, highly transparent nanophosphor layers with

  发绿光的棒状 LaPO 4 :Ce,Tb 纳米磷光体是通过简单的低温水热路线生产的，这些合成的纳米磷光体随后在 1000°C 下退火。比较了合成的和退火的纳米磷光体的晶体结构和发射特性。制备纳米荧光粉分散体后，在玻璃基板上旋转沉积在 550 nm 处可见光透射率为 92.8-98.5% 的高透明纳米荧光粉层。通过将作为后板的 LaPO 4 :Ce,Tb 纳米磷光体层/玻璃基板与传统 PDP 中使用的前板相结合，制造了微型透明绿色发射等离子体显示面板 (PDP)。表征并比较了使用合成状态与 1000°C 退火纳米磷光体的两个透明测试面板的亮度特性。
• Comparative investigation of structural, EPR, optical and photoluminescence properties of nanostructured LaPO4:Ce/RE/Me and LaPO4:Yb/Er phosphors prepared by co-precipitation method
  作者：O. AitMellal、L. Oufni、M.Y. Messous、M.M. Trandafir、I.M. Chirica、M. Florea、Ş. Neațu、A.M. Rostas、M. Secu、F. Neațu

  DOI：10.1016/j.jssc.2021.122310

  日期：2021.9

  In this work, the structural, thermal, vibrational, morphological, magnetic and optical properties of LaPO4:Ce/RE/Me (RE=Nd3+, Tb3+; Me=Cr3+, Mn2+) and LaPO4:Yb3+/Er3+ phosphors prepared by the co-precipitation method are presented. The obtained materials crystallized in monoclinic structure with the P21/n space group and the particles were of nanorod shape with about 200 ​nm in length and the diameter

  在这项工作中，LaPO 4 :Ce/RE/Me (RE=Nd 3+ , Tb 3+ ; Me=Cr 3+ , Mn 2+ ) 和 LaPO 4的结构、热、振动、形态、磁性和光学特性介绍了通过共沉淀法制备的:Yb 3+ /Er 3+荧光粉。所得材料以单斜结构结晶，P2 1/n 空间群，粒子呈纳米棒状，长约 200 纳米，直径约 19 纳米。电子顺磁共振（EPR）和紫外-可见光谱证实了掺杂离子的存在。此外，还考虑了分别通过 275 和 980 nm 激发的 LaPO 4纳米磷光体的下转换（DC）和上转换（UC），并观察到了广泛的电子跃迁。基于光致发光 (PL) 光谱，存在从 Ce 3+供体到 Nd 3+和 Tb 3+受体的有效能量转移 (ET) 过程，计算出的 ET 效率分别为 70% 和 88%。Ce 3+ /Cr 3+和Ce3+ /Mn 2+掺杂的LaPO 4表现出微弱的远红光和绿光发光，ET效率分别约为3
• High-Brightness LaPO₄:Ce³⁺, Tb³⁺Nanophosphors: Reductive Hydrothermal Synthesis and Photoluminescent Properties
  作者：Hongliang Zhu、Enze Zhu、Hong Yang、Lina Wang、Dalai Jin、Kuihong Yao

  DOI：10.1111/j.1551-2916.2008.02320.x

  日期：2008.5

  This paper definitely reveals that LaPO4:Ce3+, Tb3+ (LAP) nanophosphors prepared by normal hydrothermal method suffer significant loss of luminescence due to the oxidation of Ce3+–Ce4+ at hydrothermal stage. To effectively protect Ce3+ from oxidation, a reductive hydrothermal process using hydrazine hydrate as a protecting agent is proposed to synthesize LAP nanophosphors with different Ce3+ and Tb3+ concentrations, which exhibited much stronger green photoluminescence (PL) and longer lifetime than the products prepared by normal hydrothermal method. Furthermore, the high‐brightness LAP nanophosphors exhibited high‐quenching concentration of Tb3+; the La0.4Ce0.4Tb0.2PO4 nanophosphor showed almost the same PL intensity as that of the commercially used La0.7Ce0.2Tb0.1PO4 bulk powder.

  本文明确指出，通过常规水热法制备的LAPO₄:Ce³⁺, Tb³⁺（LAP）纳米磷光体因水热阶段Ce³⁺–Ce⁴⁺的氧化作用而遭受显著的荧光损失。为了有效防止Ce³⁺被氧化，提出了一种以水合肼作为保护剂的还原性水热工艺，用于合成具有不同Ce³⁺和Tb³⁺浓度的LAP纳米磷光体。这些磷光体相较于常规水热法制备的产品，表现出更强烈的绿色光致发光（PL）和更长的寿命。此外，高亮度的LAP纳米磷光体显示出对Tb³⁺的高淬灭浓度；其中，LA_0.4Ce_0.4Tb_0.2PO₄纳米磷光体的PL强度几乎与市售的LA_0.7Ce_0.2Tb_0.1PO₄块状粉末相当。

• Preparation and luminescence properties of Ce3+ and/or Tb3+ doped LaPO4 nanofibers and microbelts by electrospinning
  作者：Zhiyao Hou、Lili Wang、Hongzhou Lian、Ruitao Chai、Cuimiao Zhang、Ziyong Cheng、Jun Lin

  DOI：10.1016/j.jssc.2008.12.021

  日期：2009.4

  Ce3+ and/or Tb3+ doped LaPO4 nanofibers and microbelts have been prepared by a combination method of sol-gel process and electrospinning. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), photoluminescence (PL), low voltage cathodoluminescence (CL) and time-resolved emission spectra as well as kinetic decays were used to characterize the resulting samples. SEM and TEM results indicate the as-formed precursor fibers and belts are smooth. and the as-prepared nanofibers and microbelts consist of nanoparticles. The doped rare-earth ions show their characteristic emission under ultraviolet excitation, i.e. Ce3+ 5d-4f and Tb3+ D-5(4)-F-7(j) (J = 6-3) transitions, respectively. The energy transfer process from Ce3+ to Tb3+ in LaPO4:Ce3+, Tb3+ nanofibers was further studied by the time-resolved emission spectra. Under low-voltage electron beam excitation. LaPO4:Ce3+, Tb3+ microbelt phosphors have a higher intensity than that of nanofiber phosphors. (C) 2008 Elsevier Inc. All rights reserved.
• Green Emissions from Green-Colored Y[sub 2]BaMO[sub 5]:Tb (M=Cu, Zn) Materials as Inorganic Luminescent Pigments
  作者：Shoji Kunimi、Shinobu Fujihara

  DOI：10.1149/1.3358109

  日期：——

  Photoluminescence and coloring properties of Tb3+-doped Y2BaMO5 (M=Cu, Zn) were investigated for developing an inorganic luminescent pigment. Powder samples were synthesized by three kinds of methods, namely, a simple solid-state reaction, a stepwise solid-state reaction, and a precipitation. Y2BaZnO5:Tb3+ obtained by the simple solid-state reaction showed green emissions under UV light irradiation. However, substitution of Cu2+ for Zn2+ to give the material a green color led to the quenching of the green emissions from Tb3+. The distance between Tb3+ and Cu2+ was assumed to play a crucial role in luminescence behavior due to the occurrence of Tb3+-Cu2+ energy transfer in this system. We then changed the synthesis method from the conventional solid-state reaction to the precipitation method based on solution chemistry. In this latter method, green-colored, green-luminescent phosphors could be obtained successfully because the coloring Cu2+ ions and the emitting Tb3+ ions were separated in the particle.