Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Formation of upconversion nanoparticles of 18%Yb:1%Er:NAYF4 by ultra-short pulse laser ablation in water

[+] Author Affiliations
Laura Gemini, Marie-Caroline Hernandez, Rainer Kling

ALPhANOV (France)

Proc. SPIE 9722, Colloidal Nanoparticles for Biomedical Applications XI, 972205 (April 22, 2016); doi:10.1117/12.2211084
Text Size: A A A
From Conference Volume 9722

  • Colloidal Nanoparticles for Biomedical Applications XI
  • Wolfgang J. Parak; Marek Osinski; Xing-Jie Liang
  • San Francisco, California, United States | February 13, 2016

abstract

Pulsed laser ablation in liquid (PLAL) is nowadays gaining popularity as innovative, reliable and efficient technique to produce high-purity nanoparticles (NPs) of many inorganic and organic materials. In this context, attention has been recently focused on luminescent up-conversion NPs (UCNPs) which, being characterized by sharp emission bands in ultraviolet (UV)-to-near-infrared (NIR) range upon NIR irradiation, are in fact of great interest in many biological and biomedical applications. Moreover, with respect to organic dyes NPs and quantum dots, UCNPs show less toxicity, increased chemical stability, long-lifetime decays and lack of photo-bleaching. Our research focuses on generation of UCNPs of rare earth lanthanide-doped crystalline material, namely 18%Yb:1%Er:NAYF4, by PLAL in water. It is well known that optical properties of NPs strongly depend on their features, as for instance size and shape, which in turn may be controlled by laser ablation parameters. Therefore, two different laser sources are used for the ablation processes in order to find the set of laser parameter, i.e. pulse duration, laser fluence and repetition rate, for which the luminescence of UPNPs is optimized: (i) Amplitude Satsuma HP3 system: 330 fs pulse duration, 1030 wavelength and (ii) Eolite Hegoa system: 50 ps pulse duration, 1030 nm wavelength. UCNPs are finally characterized by spectrophotometer analyses to define emission range and intensity under NIR light and by transmission electron microscopy (TEM) to determine their size and shape. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Laura Gemini ; Marie-Caroline Hernandez and Rainer Kling
" Formation of upconversion nanoparticles of 18%Yb:1%Er:NAYF4 by ultra-short pulse laser ablation in water ", Proc. SPIE 9722, Colloidal Nanoparticles for Biomedical Applications XI, 972205 (April 22, 2016); doi:10.1117/12.2211084; http://dx.doi.org/10.1117/12.2211084


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement


 

  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.