Next Article in Journal
Deformation Behavior of Foam Laser Targets Fabricated by Two-Photon Polymerization
Previous Article in Journal
“Chocolate” Gold Nanoparticles—One Pot Synthesis and Biocompatibility
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessArticle
Nanomaterials 2018, 8(7), 497;

Multi-Band Up-Converted Lasing Behavior in NaYF4:Yb/Er Nanocrystals

Shenzhen Key Laboratory of Laser Engineering, Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong Higher Education Institutes, College of Optoelectronic Engineering,, Shenzhen University, Shenzhen 518060, China
University Research Facility in Materials Characterization and Device Fabrication, The Hong Kong Polytechnic University, Hong Kong 999077, China
Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong 999077, China
Authors to whom correspondence should be addressed.
Received: 24 May 2018 / Revised: 3 July 2018 / Accepted: 3 July 2018 / Published: 5 July 2018
PDF [2987 KB, uploaded 6 July 2018]


Random lasers have attracted great interests and extensively investigation owing to their promising applications. Here, we explored unambiguously the multi-band up-converted random lasing from NaYF4:Yb,Er nanocrystals (NCs). NaYF4:Yb,Er NCs exhibit high effective up-conversion luminescence when they are excited by continuous wave 980 nm laser. We investigated a planar microcavities approach wherein the NaYF4:Yb,Er NCs showed up-converted lasing behavior. The optical pumping of NaYF4:Yb,Er NCs by 980 nm pulsed laser excitation exhibited multi-band lasing. The NaYF4:Yb,Er NCs showed multi-band lasing emission with a line width of 0.2 nm at 540 nm and 0.4 nm at 660 nm. This research promotes potential application in bioimaging and biomedical fields. View Full-Text
Keywords: random laser; nanomaterials; up-conversion random laser; nanomaterials; up-conversion

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Peng, Y.-P.; Lu, W.; Ren, P.; Ni, Y.; Wang, Y.; Yan, P.; Zeng, Y.-J.; Zhang, W.; Ruan, S. Multi-Band Up-Converted Lasing Behavior in NaYF4:Yb/Er Nanocrystals. Nanomaterials 2018, 8, 497.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Nanomaterials EISSN 2079-4991 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top