...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optics Letters >Highly uniform and monodisperse beta-NaYF4 : Sm3+ nanoparticles for a nanoscale optical thermometer
【24h】

Highly uniform and monodisperse beta-NaYF4 : Sm3+ nanoparticles for a nanoscale optical thermometer

机译：高均匀和单分散β-NayF4：用于纳米级光学温度计的SM3 +纳米颗粒

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Monodisperse beta-NaYF4 : 1% Sm3+ nanoparticles were fabricated successfully via the thermal decomposition technique. Strong temperature dependence of the Sm3+ emission was observed when its thermally populated state H-6(7/2) was directly excited to the (4)G(5/2) level. This strategy not only can eliminate laser heating and background Stokes-type scattering noise but also has a high quantum yield as a result of one-photon excitation process. Under 594.0 nm laser excitation, the emission intensity of (4)G(5/2)-H-6(5/2) enhances monotonously with rising temperature from 300 K to 430 K, including a physiological temperature range (27 degrees C-60 degrees C). The relative temperature sensitivity can reach 1.1% K-1 and 0.91% K-1 at 300 K and 330 K, respectively. In addition, the repeatability of temperature sensing was evaluated under several heating-cooling cycles, and the decay curves of the emission at 560.0 nm ((4)G(5/2)-H-6(5/2)) at different temperatures were also investigated. These results raise the prospects of monodisperse beta-NaYF4 : 1% Sm3+ nanoparticles for optical temperature sensing in biomedicine fields. (C) 2018 Optical Society of America
机译：通过热分解技术成功制造单分散β-NayF4：1％SM3 +纳米颗粒。当将其热填充的状态H-6（7/2）直接激发到（4 )g（5/2）水平时，观察到SM3 +排放的强烈依赖性。这种策略不仅可以消除激光加热和背景斯托克型散射噪声，而且由于单光子励磁过程也具有高量子产率。在594.0nm激光激发下，（4）g（5/2）-h-6（5/2）的发射强度将温度从300k至430k的上升温度加强，包括生理温度范围（27℃ - 60℃）。相对温度敏感性可分别以300k和330 k达到1.1％K-1和0.91％K-1。此外，在几种加热冷却循环下评价温度感测的可重复性，并且在不同温度下在560.0nm（（4）克（5/2）-H-6（5/2））下发射的衰减曲线也被调查了。这些结果提高了生物医学领域中的单分散β-NayF4：1％SM3 +纳米粒子的前景。 （c）2018年光学学会

著录项

  • 来源
    《Optics Letters》 |2018年第4期|共4页
  • 作者

    Zhao Zhangmei; Hu Fangfang; Cao Zhongmin; Chi Fengfeng; Wei Xiantao; Chen Yonghu; Duan Chang-kui; Yin Min;

  • 作者单位

    Univ Sci &

    Technol China Chinese Acad Sci Sch Phys Sci Key Lab Strongly Coupled Quantum Matter Phys 96 Jinzhai Rd Hefei 230026 Anhui Peoples R China;

    Zhejiang Normal Univ Dept Phys Jinhua 321004 Zhejiang Peoples R China;

    Univ Sci &

    Technol China Chinese Acad Sci Sch Phys Sci Key Lab Strongly Coupled Quantum Matter Phys 96 Jinzhai Rd Hefei 230026 Anhui Peoples R China;

    Univ Sci &

    Technol China Chinese Acad Sci Sch Phys Sci Key Lab Strongly Coupled Quantum Matter Phys 96 Jinzhai Rd Hefei 230026 Anhui Peoples R China;

    Univ Sci &

    Technol China Phys Expt Teaching Ctr Sch Phys Sci Hefei 230026 Anhui Peoples R China;

    Univ Sci &

    Technol China Chinese Acad Sci Sch Phys Sci Key Lab Strongly Coupled Quantum Matter Phys 96 Jinzhai Rd Hefei 230026 Anhui Peoples R China;

    Univ Sci &

    Technol China Chinese Acad Sci Sch Phys Sci Key Lab Strongly Coupled Quantum Matter Phys 96 Jinzhai Rd Hefei 230026 Anhui Peoples R China;

    Univ Sci &

    Technol China Chinese Acad Sci Sch Phys Sci Key Lab Strongly Coupled Quantum Matter Phys 96 Jinzhai Rd Hefei 230026 Anhui Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号