Size- and Phase-Controlled Synthesis of Monodisperse NaYF4…
2007年8月24日 · Monodisperse α-NaYF 4:Yb,Er and β-NaYF 4:Yb,Er nanocrystals with controlled size, chemical composition, and surface state were synthesized from trifluoroacetate …
The Formation of NaYF4 - Wiley Online Library
2023年5月12日 · Here, we follow the synthesis of β-NaYF 4 nanocrystals from α-NaYF 4 precursor particles using in situ small-angle and wide-angle X-ray scattering and ex situ …
Synthesis and photoluminescent properties of α-NaYF4:Nd/α-NaYF4 …
2009年2月15日 · TEM images show that the as-prepared samples have sphere-like shape. The lifetime values of the 4 F 3/2 energy level of the α -NaYF 4:Nd/ α -NaYF 4 core/shell …
Synthesis and characterization of α-NaYF4: Yb, Er nanoparticles by ...
2015年10月31日 · A simple and cost effective reverse microemulsion system was newly designed to synthesis NaYF 4:20%Yb,2%Er upconverting luminescent nanoparticles. XRD results …
厦大《Light》（IF17.782）：发光材料领域取得重要进展！ - 知乎
NaYF4:Ln3+由于其优异的上转换特性，已成为生物成像、光信息存储和防伪应用中最重要的发光纳米材料之一。 然而，NaYF4:Ln3+纳米颗粒的大比表面积通常会导致严重的非辐射跃迁，这 …
Reaction study of α-phase NaYF4:Yb,Er generation via a tubular ...
α-Phase NaREF 4 is the necessary intermediate to obtain β-phase NaREF 4, which is good at upconversion luminescence. We herein report microreaction research on the generation of α …
Synthesis and spectroscopic analysis of Ce3+ and Gd3+-doped NaYF4…
1 天前 · A new method of synthesis for NaYF4 is reported. The method involves highly exothermic solid-state metathesis reaction between metal chlorides and NaF. The synthesis is very fast …
Structural, morphology and optical properties of NaYF4 thin
2019年1月29日 · NaYF4 and NaYF4:Ln3+ (Ln3+ = Nd3+, Eu3+, Yb3+, Er3+) thin films were prepared by electrodeposition technique. After deposition, all samples were thermally …
单晶体α-NaYF4:Dy3+的制备及光谱特性 | 光子学报 -- 中国光学期 …
以氟化钾(KF)作为助熔剂,选用70~90℃/cm的固液界面温度梯度,通过改进的助熔剂-布里奇曼方法生长出了Dy3+离子掺杂的α-NaYF4单晶体.测试了样品的X射线粉末衍射,吸收光谱,激发光谱,以及 …
Citric acid-assisted hydrothermal synthesis of α-NaYF4…
Tm3+ and Yb3+ ions co-doped α-NaYF4 nanocrystals (NCs) were prepared by a one step hydrothermal method with citric acid as the organic additive. The morphology of the as …