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Proceedings Article

Synthesis of NaYF4 : Yb3+/Er3+ upconverting nanocrystals in a capillary-based continuous microfluidic reaction system

[+] Author Affiliations
Haichun Liu, Ola Jakobsson, Can T. Xu, Haiyan Xie, Stefan Andersson-Engels

Lund Univ. (Sweden)

Thomas Laurell

Lund Univ. (Sweden) and Dongguk Univ. (Korea, Republic of)

Proc. SPIE 7909, Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI, 790917 (February 11, 2011); doi:10.1117/12.874348
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From Conference Volume 7909

  • Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI
  • Wolfgang J. Parak; Kenji Yamamoto; Marek Osinski
  • San Francisco, California, USA | January 22, 2011

abstract

We report for the first time continuous flow synthesis of NaYF4:Yb3+/Er3+ upconverting nanocrystals in a capillary-based microfluidic reaction system. Two sequential temperature steps were employed for heating with an initial high temperature (180°C) to burst nuclei and a subsequent low temperature (110°C) to promote growth of the nanocrystals in order to obtain high-performance nanocrystals. The prepared nanocrystals emit bright green and red emissions under excitation of 974 nm diode laser. Our research opens the door for the synthesis of upconverting nanocrystals in microfluidic systems.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Haichun Liu ; Ola Jakobsson ; Can T. Xu ; Haiyan Xie ; Thomas Laurell, et al.
"Synthesis of NaYF4 : Yb3+/Er3+ upconverting nanocrystals in a capillary-based continuous microfluidic reaction system", Proc. SPIE 7909, Colloidal Quantum Dots/Nanocrystals for Biomedical Applications VI, 790917 (February 11, 2011); doi:10.1117/12.874348; http://dx.doi.org/10.1117/12.874348


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