Upconversion luminescence behavior of single nanoparticles. Academic Article

abstract

• Upconversion nanoparticles (UCNPs) have made a significant and valuable contribution to materials science, photophysics, and biomedicine due to their specific spectroscopic characteristics. However, the ensemble spectroscopy of UCNPs is limited because of the electronic behavior in average effect, which ignores the fact that these nanoparticles are heterogeneous. With regards to the research focus on heterogeneous intrinsic structures, unique photophysical phenomena, and advanced applications, the optical characterization of single UCNPs have been promoted to the frontier development of the UCNPs community. In this review, we give an overview of the importance of single UCNPs characterization, typical principles of UC, and single particle detection methods. Considerable emphasis is placed on the specific spectroscopic study of single UCNPs, which shows fantastic photophysical phenomena beyond ensemble measurement. Parallel efforts are devoted to the current applications of single UCNPs.

authors

• Xu, Shiqing

published proceedings

• Nanoscale

author list (cited authors)

• Zhou, J., Xu, S., Zhang, J., & Qiu, J.

citation count

• 46

complete list of authors

• Zhou, Jiajia||Xu, Shiqing||Zhang, Junjie||Qiu, Jianrong

publication date

• October 2015

publisher

• Royal Society of Chemistry (RSC)  Publisher

published in

• Nanoscale  Journal

keywords

• 40 Engineering
• 4018 Nanotechnology
• 51 Physical Sciences
• Bioengineering
• Nanotechnology

PubMed Central ID

• 26119753

Digital Object Identifier (DOI)

• 10.1039/c5nr02979a

start page

• 15026

end page

• 15036

volume

• 7

issue

• 37

URL

• http://dx.doi.org/10.1039/c5nr02979a