A sequential two-step near-infrared quantum splitting in Ho3+ singly doped NaYF4

D. C. Yu; X. Y. Huang; S. Ye; Q. Y. Zhang; J. Wang

doi:10.1063/1.3666981

AIP Advances (Dec 2011)

A sequential two-step near-infrared quantum splitting in Ho3+ singly doped NaYF4

D. C. Yu,
X. Y. Huang,
S. Ye,
Q. Y. Zhang,
J. Wang

Affiliations

D. C. Yu: State Key Laboratory of Luminescent Materials and Devices, and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510641, P. R. China
X. Y. Huang: State Key Laboratory of Luminescent Materials and Devices, and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510641, P. R. China
S. Ye: State Key Laboratory of Luminescent Materials and Devices, and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510641, P. R. China
Q. Y. Zhang: State Key Laboratory of Luminescent Materials and Devices, and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510641, P. R. China
J. Wang: State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, P. R. China

DOI: https://doi.org/10.1063/1.3666981
Journal volume & issue: Vol. 1, no. 4
pp. 042161 – 042161-6

Abstract

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We demonstrated an efficient sequential two-step near-infrared (NIR) quantum splitting (QS) in a Ho3+ singly doped β-NaYF4. An incident high-energy ultraviolet (UV)-to-visible photon in the wavelength range of 300−560 nm, which enables the Ho3+:5F4,5S2 states excited, could be efficiently split into two NIR photons at 1015 and 1180 nm. Underlying mechanisms for the sequential two-step NIR-QS process are analyzed in terms of the diffuse reflection spectrum, static and dynamic photoemission spectra and monitored excitation spectra. Internal quantum yield is obtained up to 110% on the basis of experimental and theoretical calculation results.

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/

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