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Materials Science

上转换纳米颗粒

Upconversion Nanoparticles

Nanoparticles composed of host lattices (e.g., SrF2) doped with lanthanide ions (e.g., Yb3+, Tm3+) that absorb low-energy photons (typically near-infrared) and emit higher-energy photons (e.g., blue) via sequential energy transfer processes. / 由基质晶格(如SrF2)掺杂镧系离子(如Yb3+, Tm3+)组成的纳米颗粒,通过级联能量转移过程吸收低能光子(通常为近红外)并发射高能光子(如蓝光)。

Knowledge type
物理设备
First proposed or discovered
Proposer
Turkey Farm member
Creator
农场主
Last updated
2026-11-13 21:06:35
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Sub-knowledge points

Bi3+-enhanced upconversionSrF2:Yb3+/Tm3+ systemBlue-band optical thermometry

Higher-order knowledge points

Main parameters and performance indicators

Host Lattice: SrF2Dopants: Bi3+, Yb3+, Tm3+Emission Band: Blue-bandApplication: Optical thermometry

Open problems

No unresolved problem recorded yet

Related literature

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Bi3+-enhanced upconverting SrF2:Yb3+/Tm3+ nanoparticles for highly sensitive blue-band optical thermometryOpen source

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Creation and modification trail

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automated knowledge publish农场主2026-11-13 21:05:46

Record title: Upconversion Nanoparticles.