Enhancing Single-band Red Upconversion Luminescence of Ho<sup>3+</sup> Through Dye-sensitization

Dan WANG; Bin XUE; Lang-ping TU; You-lin ZHANG; Jun SONG; Jun-le QU; Xiang-gui KONG

doi:10.37188/fgxb20204109.1114

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Enhancing Single-band Red Upconversion Luminescence of Ho³⁺ Through Dye-sensitization

Synthesis and Properties of Materials | 更新时间：2020-09-10

- Enhancing Single-band Red Upconversion Luminescence of Ho³⁺ Through Dye-sensitization
- Chinese Journal of Luminescence Vol. 41, Issue 9, Pages: 1114-1121(2020)
- 作者机构：
  
  1.深圳大学物理与光电工程学院光电子器件与系统教育部/广东省重点实验室, 广东深圳 518060
  2.深圳大学信息工程学院, 广东深圳 518060
  3.中国科学院长春光学精密机械与物理研究所发光学及应用国家重点实验室, 吉林长春 130033
- 作者简介：
  
  [ "王丹(1986-), 女, 吉林松原人, 博士, 博士后, 2015年于中国科学院长春光学精密机械与物理研究所获得博士学位, 主要从事发光材料设计及其生物医学应用的研究。E-mail:wangdan66322@163.com" ]
  [ "宋军(1978-), 男, 河北沧州人, 博士, 教授, 博士研究生导师, 2008年于瑞典皇学工学院获得博士学位, 主要从事纳米光子学、尤其是高分辨荧光成像技术在生物医学光学检测及新能源技术中应用的研究。E-mail:songjun@szu.edu.cn" ]
  [ "孔祥贵(1955-), 男, 山东曲阜人, 博士, 研究员, 博士研究生导师, 1998年于中国科学院长春物理研究所获得博士学位, 主要从事发光纳米材料在生物医学中应用的研究。E-mail:xgkong14@ciomp.ac.cn" ]
- 基金信息：
  
  国家重点研发计划;国家自然科学基金;国家自然科学基金;国家自然科学基金;国家自然科学基金;国家自然科学基金;国家自然科学基金;吉林省科技厅自然科学基金;深圳市基础研究项目
- DOI：10.37188/fgxb20204109.1114
  CLC： O482.31
- Received：26 May 2020，
  
  Accepted：27 June 2020，
  
  Published：2020-09
- 稿件说明：
移动端阅览
Dan WANG, Bin XUE, Lang-ping TU, et al. Enhancing Single-band Red Upconversion Luminescence of Ho³⁺ Through Dye-sensitization[J]. Chinese journal of luminescence, 2020, 41(9): 1114-1121.
DOI：

Dan WANG, Bin XUE, Lang-ping TU, et al. Enhancing Single-band Red Upconversion Luminescence of Ho³⁺ Through Dye-sensitization[J]. Chinese journal of luminescence, 2020, 41(9): 1114-1121. DOI： 10.37188/fgxb20204109.1114.

摘要

单带上转换红光发射在高分辨生物标记及三维彩色显示方面具有重要应用。本文针对Ho

/Ce

共掺杂纳米体系单带上转换红光较弱的问题，设计制备了染料（IR-806）敏化的NaYF

:Yb/Ho/Ce（20%/2%/10%）@NaYF

:Nd（20%）纳米晶，显著增强了上转换红光发射。采用溶剂热法制备了均匀的上转换纳米粒子，通过调控核内部Ce

离子掺杂浓度比例（0~10%）逐步获得单带上转换红光发射。在此基础上，通过上转换纳米粒子表面连接近红外IR-806染料分子，808 nm激发下其上转换发光强度提高了约22倍，特别地，红绿荧光强度比从4.8增至8.4。结果表明，染料敏化可用于增强上转换单带红光发射，并提高红光色纯度，这有利于高清晰的生物成像应用。

Abstract

Single-band red upconversion emission has important applications for high-resolution biomarkers and 3-dimensional color display. However

the cross-relaxation of Ho

/Ce

co-doping system normally yield the weak single-band red emission. In this paper

the dye-sensitized NaYF

:Yb/Ho/Ce(20%/2%/10%)@NaYF

:Nd(20%) nanoparticles were prepared to address such an issue. Highly uniform upconversion nanoparticles were prepared by solvothermal method

and the single-band red emission was obtained by increasing the Ce

doping concentration (from 0% to 10%) inside the core. When the near-infrared dyes of IR-806 were further conjugated

the upconversion luminescence intensity exhibited a 22-fold enhancement

and the red-to-green emission ratio also increased from 4.8 to 8.4. This paper provides a new way to improve the intensity and the purity of single-band red upconversion luminescence through dye sensitization

which is beneficial to high-resolution bioimaging.

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Keywords

references

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⁰

Enhancing Single-band Red Upconversion Luminescence of Ho3+ Through Dye-sensitization

DOI：10.37188/fgxb20204109.1114

摘要

Abstract

关键词

Keywords

references

Enhancing Single-band Red Upconversion Luminescence of Ho³⁺ Through Dye-sensitization