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Updated: Jul 2, 2025

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
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Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications

Published on: November 10, 2017

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ポジティブ/ネガティブな熱膨張コア/シェル NaYF4:Yb/Ho@ScF3ナノ粒子における抑制されたマルチフォンリラクゼーションによる反熱消火アップコンバーション発光

Yilin Wang1,2, Jiahui Rui1, Hao Song1

  • 1Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 211816, China.

Journal of the American Chemical Society
|February 27, 2024
PubMed
まとめ

熱の消火を抑制するために 反対の熱膨張を用いた 核/殻のアップコンバーション 発光システムを開発しました この方法は,格子振動によるエネルギー損失を減らすことで,発光効率を高めます.

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Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
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Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
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