Skip to main navigation Skip to search Skip to main content

Two-color upconversion in rare-earth-ion-doped ZrO2 nanocrystals

  • G. Y. Chen*
  • , Y. G. Zhang
  • , G. Somesfalean
  • , Z. G. Zhang
  • , Q. Sun
  • , F. P. Wang
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

To develop fluorescent labels for multicolor imaging, rare-earth-ion-doped Zr O2 nanocrystals were prepared by a complex precursor method. Laser excitation of 976 nm induced single fluorescent bands of green and red upconversion (UC) in Zr O2: Er3+ and Zr O2: Er3+ + Yb3+ nanocrystals, respectively. A suppression ratio (SR) parameter was introduced, defined as the UC intensity ratio of the main band to all the other detected impurity bands, and SR values in the order of 10-100 were experimentally obtained, demonstrating the excellent monochromaticity of the UC labels. Thus, the two-color UC labels obtained are potentially ideal to be used for biological multicolor imaging.

Original languageEnglish
Article number163105
JournalApplied Physics Letters
Volume89
Issue number16
DOIs
StatePublished - 2006

Fingerprint

Dive into the research topics of 'Two-color upconversion in rare-earth-ion-doped ZrO2 nanocrystals'. Together they form a unique fingerprint.

Cite this