Temperature sensing and bioimaging realized in NaErF4:40%Tm@NaYF4 …
2022年9月1日 · In this paper, NaErF 4:40%Tm@NaYF 4, a high efficient red UCNPs with R/G ratio (6.86), is first utilized as an optical thermometer, accomplished through the fluorescence …
Fabrication and characterization of up-converting β-NaYF4…
2020年9月4日 · In order to enhance the green emission intensities used for temperature sensing applications, in this study a β-NaYF 4:Er 3+,Yb 3+ nanoparticles coated with NaYF 4 shell …
Preparation of NaYF4:Yb3+,Tm3+@NaGdF4:Ce3+,Eu3+ double …
2020年12月1日 · It is demonstrated that PAA ligand played an important role in guiding the direct growth of NaGdF 4:Ce 3+,Eu 3+ shell onto the surface of NaYF 4:Yb 3+,Tm 3+ parent …
Preparation of NaYF4: Yb3+/Tm3+@NaYF4@β-CD upconversion …
2023年2月1日 · In this paper, water-soluble NaYF 4:Yb 3+ /Tm 3+ @NaYF 4@β-CD upconversion nanoparticles were successfully prepared by the solvothermal method. The …
地大李国岗/陈克强Small：多模式发光的β-NaYF4:Yb,Tm/Cs4PbBr6 …
2024年1月10日 · 本文选择六方相β-NaYF4:Yb,Tm和六方相Cs4PbBr6构建UPNCs/MHPs核壳结构。 它们晶体结构的相似性促进了Cs4PbBr6在β-NaYF4纳米晶体表面的异质外延生长，从而形 …
Magnified HR TEM images of the NaYF 4 :Yb,Er UCNPs
The phase evolution of as-prepared NaYF4:Yb,Er upconversion nanoparticles (UCNPs) with a metastable cubic structure is studied based on in situ heating experiments via transmission …
NaYF4 Microstructure, beyond Their Well-Shaped Morphology
NaYF 4, which is the emblematic compound for up-conversion, is known to exist in two different polymorphs: cubic -NaYF 4 and hexagonal -NaYF 4. The impact of the host crystal on optical …
NaYF4:Yb3+,Tm3+@NaYF4:Yb3+,Er3+纳米粒子中上转换发光的动 …
Transmission electron microscopy (TEM) results show that all prepared nanocrystals are well-crystallized with a hexagonal phase and have a desirable size distribution. The particle size …
上转换纳米材料NaYF4:Yb,Er在生物领域的应用 - 知乎
通过 TEM 、 SEM 、 XRD 、 FTIR 、光纤光谱和 Zeta电位 等表征手段提出了多巴胺修饰NaYF4∶Yb，Er的作用机理，多巴胺通过与UCNPs表面的CTAB间的静电吸附作用粘附 …
Stability, dissolution, and cytotoxicity of NaYF4-upconversion ...
2022年3月8日 · NaYF 4 is one of the most widely used host lattices for UCNPs and is generally considered to yield the most efficient inorganic upconverting crystalline materials 7 with …