Facile synthesis of amine functionalized NaGdF4: Yb3+, Er3+ upconverting nanoparticles
(Conference Presentation)

Jin Zhang; Longyi Chen

doi:10.1117/12.2238360

10 November 2016 Facile synthesis of amine functionalized NaGdF₄: Yb³⁺, Er³⁺ upconverting nanoparticles (Conference Presentation)

Jin Zhang, Longyi Chen

Author Affiliations +

Proceedings Volume 9923, Physical Chemistry of Interfaces and Nanomaterials XV; 99230R (2016) https://doi.org/10.1117/12.2238360
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

Upconversion nanoparticles have been demonstrating great potentials in deep-tissue imaging with less or without photon-damage because they can convert the excitation light in the near-infrared wavelength region (700 nm < λex< 1200 nm) to the emission light in the visible region (400 nm < λem< 700 nm). This study presents a facile method for the synthesis of amine functionalized hydrophilic NaGdF4: Yb3+, Er3+ upconverting nanostructures. The prepared nanoparticles were subjected to various characterizations including transmission electron microscopy (TEM) and high-resolution TEM, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD). The fluorescence and magnetic properties of the produced upconversion nanoparticles were further investigated by a fluorometer and a vibrating sample magnetometer (VSM) analysis. It is found that the ratio of the emission intensity of the synthesized upconverting nanoparticles in aqueous at 540 nm to their emission intensity at 660 nm (I540/I660) is about 8.3 times of the ratio (I540/I660) of the upconverting nanoparticle in the format of powder. The difference between the samples in aqueous media and in the format of powder may be caused by the water molecules absorbed onto the surface ligands of the nanoparticles, which is likely to decrease upconversion fluorescence by nonradiative decay. This method provided a facile synthesis route to the preparation of amine functionalized hydrophilic NaGdF4: Yb3+, Er3+ upconverting nanoparticle.

Conference Presentation

Citation Download Citation

Jin Zhang and Longyi Chen "Facile synthesis of amine functionalized NaGdF₄: Yb³⁺, Er³⁺ upconverting nanoparticles (Conference Presentation)", Proc. SPIE 9923, Physical Chemistry of Interfaces and Nanomaterials XV, 99230R (10 November 2016); https://doi.org/10.1117/12.2238360

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Nanoparticles

Transmission electron microscopy

Upconversion

FT-IR spectroscopy

Luminescence

Visible radiation

Magnetism

Show All Keywords

Keywords/Phrases

Search In:

Publication Years