Optical Temperature Sensing of Core-Shell Structured NaYF4:Yb3+, Er3+@NaYF4 Nanocrystals with Different Shell Thickness

Article Preview

Abstract:

Hexagonal (β)-phase NaYF4:Yb3+, Er3+ upconversion nanoparticles (UCNPs) with and without an inert (undoped NaYF4) shell have been successfully synthesized and the effects of shell thickness on the upconversion luminescence (UCL) and temperature sensing properties were systematically investigated. It was found that the NaYF4 shell and its thickness do not affect the RHS values and thermal sensitivity, but can obviously improve the UCL intensity of NaYF4:Yb3+, Er3+ UCNPs. It implies that the core-shell structured NaYF4:Yb3+, Er3+@NaYF4 UCNPs with excellent UCL properties have great potential to be used as temperature sensing probes in biomedical fields, without considering the influences of the shell thickness on their temperature sensing properties.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

27-30

Citation:

Online since:

March 2015

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2015 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] E. Maurice, G. Monnom, B. Dussardier, A. Saissy, D. Ostrowsky and G. Baxter: Appl. Optics. Vol. 34 (1995), P. 8019.

DOI: 10.1364/ao.34.008019

Google Scholar

[2] J. Shen, L. Zhao and G. Han: Adv. Drug Deliver. Rev. Vol. 65 (2013), P. 744.

Google Scholar

[3] F. Vetrone, R. Naccache, A. Zamarron, A.J. de la Fuente, F.S. Rodriguez, L.M. Maestro, E.M. Rodriguez, D. Jaque, J.G. Sole and J. Capobianco: ACS Nano Vol. 4 (2010), P. 3254.

DOI: 10.1021/nn100244a

Google Scholar

[4] J.C. Boyer and F.C.J.M. Van Veggel: Nanoscale Vol. 2 (2010), P. 1417.

Google Scholar

[5] L.X. Liu, F. Qin, H. Zhao, T.Q. Lv, Z.G. Zhang and W.W. Cao: Opt. Lett. Vol. 38 (2013), P. 2101.

Google Scholar

[6] H.S. Qian and Y. Zhang: Langmuir Vol. 24 (2008), P. 12123.

Google Scholar

[7] M.D. Shinn, W.A. Sibley, M.G. Drexhage and R.N. Brown: Phys. Rev. B Vol. 27 (1983), P. 6635.

Google Scholar

[8] S.A. Wade, S.F. Collins and G.W. Baxter: J. Appl. Phys. Vol. 94 (2003), P. 4743.

Google Scholar