Ultraviolet upconversion emissions of Gd3+

Chunyan Cao, Weiping Qin, Jisen Zhang, Yan Wang, Peifen Zhu, Guodong Wei, Guofeng Wang, Ryongjin Kim, Lili Wang

Research output: Contribution to journalArticlepeer-review

101 Scopus citations

Abstract

Under 980 nm excitation, upconversion (UC) emissions in the UV range of 270-320 nm were observed in nanocrystals Y0.795-xGd xYb0.2Tm0.005F3 (x=0, 0.1, 0.2, 0.5, and 0.795), which were synthesized through a hydrothermal method. These UC emissions can be assigned to the transitions of 6IJ, 6PJ8S7/2 (Gd3+), and 3P0/1I63H6 (Tm3+). The energy transfer from Tm 3+ to Gd3+ plays a crucial role in populating the excited states of Gd3+. The shortest wavelength of upconverted emission converted from the infrared region was demonstrated here.

Original languageEnglish
Pages (from-to)857-859
Number of pages3
JournalOptics Letters
Volume33
Issue number8
DOIs
StatePublished - 15 Apr 2008
Externally publishedYes

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