Abstract

Core-shell structured SiO2@YVO4:Yb3+, Er3+, Eu3+ nanospheres were prepared by a simple solgel method followed by a subsequent heat treatment. The as-prepared composites were characterized by a scanning electron microscope, high-resolution transmission electron microscope, x-ray diffraction, and photoluminescence spectra. The influences of different coating numbers were also studied. To sum up, the composites are spherical shaped with an average diameter of 200 nm, and the YVO4:Yb3+, Er3+, Eu3+ luminescent particles are successfully coated on the surface of SiO2 nanospheres. Under the near-infrared irradiation at 980 nm, the composites can emit strong green lights (at 525 nm, 550 nm) attributed to the H11/22I15/24, S3/24I15/24 transitions of Er3+ ions, and slight red lights (at 590 nm, 620 nm) attributed to the D05F17, D05F27 transitions of Eu3+ ions. Given the above, due to the regular core-shell structure, the uniform distribution of nanoparticles, and the colorful emissions, the SiO2@YVO4:Yb3+, Er3+, Eu3+ nanospheres may have great potential for some biological applications, such as biological tracers, bio-labeling, and so on.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Pumping-power-dependent photoluminescence angular distribution from an opal photonic crystal composed of monodisperse Eu3+/SiO2 core/shell nanospheres

Le Dac Tuyen, Jian Hung Lin, Cheng Yi Wu, Po-Tse Tai, Jau Tang, Le Quoc Minh, Hung-Chih Kan, and Chia Chen Hsu
Opt. Express 20(14) 15418-15426 (2012)

YVO4:Er3+/Yb3+ phosphor for multifunctional applications

Manoj Kumar Mahata, Surya Prakash Tiwari, Shriparna Mukherjee, Kaushal Kumar, and Vineet Kumar Rai
J. Opt. Soc. Am. B 31(8) 1814-1821 (2014)

Modification on populating paths of β-NaYF4:Nd/Yb/Ho@SiO2@Ag core/double-shell nanocomposites with plasmon enhanced upconversion emission

Yi Qin, Zhiliang Dong, Dacheng Zhou, Yong Yang, Xuhui Xu, and Jianbei Qiu
Opt. Mater. Express 6(6) 1942-1955 (2016)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription