Enhanced upconversion fluorescence of Er3+:ZrO2 nanocrystals induced by phase transformation

L. Liu; Y. J. Chen; X. L. Zhang; Y. X. Wang; X. R. Zhang; Y. L. Song

doi:10.1063/1.3676601

AIP Advances (Mar 2012)

Enhanced upconversion fluorescence of Er3+:ZrO2 nanocrystals induced by phase transformation

L. Liu,
Y. J. Chen,
X. L. Zhang,
Y. X. Wang,
X. R. Zhang,
Y. L. Song

Affiliations

L. Liu: School of Science, Harbin Engineering University, 150001 Harbin, People's Republic of China
Y. J. Chen: School of Science, Harbin Engineering University, 150001 Harbin, People's Republic of China
X. L. Zhang: School of Science, Harbin Engineering University, 150001 Harbin, People's Republic of China
Y. X. Wang: Department of Physics, Harbin Institute of Technology, 150001 Harbin, People's Republic of China
X. R. Zhang: Department of Physics, Harbin Institute of Technology, 150001 Harbin, People's Republic of China
Y. L. Song: School of Physical Science and Technology, Suzhou University, 215006 Suzhou, People's Republic of China

DOI: https://doi.org/10.1063/1.3676601
Journal volume & issue: Vol. 2, no. 1
pp. 012102 – 012102-7

Abstract

Read online

In this letter, we demonstrate for the first time a growth of monoclinic phase ZrO2 nanocrytals based on a sol-gel method, compared to the ordinary sol-gel procedure, our method decreases the synthesized temperature from ∼1000 °C to ∼800 °C. In addition, it is found that Er3+ in monoclinic phase ZrO2 nanocrystals have greatly enhanced upconversion emissions under infrared LD excitation due to its lower environmental symmetry.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

About the journal