Linearly Polarized Emission from Shear-Induced Nematic Phase Upconversion Nanorods

He，Huilin1,2; Liu，Jianxun1; Li，Ke1; Yin，Zhen1; Wang，Jiawei1; Luo，Dan1; Liu，Yan Jun1

2020-06-10

10.1021/acs.nanolett.0c00601

NANO LETTERS   影响因子和分区

1530-6984

1530-6992

Lanthanide-doped particles exhibit unique polarization-dependent luminescence due to the anisotropic crystalline local symmetry surrounding the emitter. Precise control of the orientation of particles shows great significance for exploiting the luminescent polarization and their potential applications. Here, we demonstrated a facile polypropylene-aided shear-driven method to obtain large-scale orientationally ordered upconversion nanorods, showing a liquid-crystalline nematic phase. Upconversion nanorods with low aspect ratios were well-aligned with the crystalline c-axis along the shearing direction using monodispersed colloid nanorods as the nanoink. The order parameter of aligned upconversion nanorods can reach up to 0.95. The nematic upconversion nanorods demonstrated strong polarization-dependent luminescence with the high degrees of polarization of the 4F9/2 sublevels at 657 and 661 nm being 0.47 and 0.59, respectively. Taking advantage of these mesoscopic well-aligned upconversion nanorods, their peculiar polarized emissions are potentially useful for some interdisciplinary applications such as polarization-sensitive bioprobes and anticounterfeiting.

alignment monodispersed nanorods nematic phase polarized upconversion luminescence shear-driven method

SCI ; EI

英语

NI论文

第一

National Natural Science Foundation of China[61805113] ; Guangdong Innovative and Entrepreneurial Research Team Program[2017ZT07C071] ; Natural Science Foundation of Guangdong Province[2017A030313034][2018A030310224] ; Shenzhen Science and Technology Innovation Commission[JCYJ20170817111349280][JCYJ20180305180635082][GJHZ20180928155207206]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000541691200018

AMER CHEMICAL SOC

20202708892833

Aspect ratio ; Polypropylenes ; Polarization ; Luminescence

Light/Optics:741.1 ; Nanotechnology:761 ; Organic Polymers:815.1.1 ; Solid State Physics:933

MATERIALS SCIENCE

2-s2.0-85086346153

Scopus

1.Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Harbin Institute of Technology,Harbin,150001,China

He，Huilin,Liu，Jianxun,Li，Ke,et al. Linearly Polarized Emission from Shear-Induced Nematic Phase Upconversion Nanorods[J]. NANO LETTERS,2020,20(6):4204-4210.

He，Huilin.,Liu，Jianxun.,Li，Ke.,Yin，Zhen.,Wang，Jiawei.,...&Liu，Yan Jun.(2020).Linearly Polarized Emission from Shear-Induced Nematic Phase Upconversion Nanorods.NANO LETTERS,20(6),4204-4210.

He，Huilin,et al."Linearly Polarized Emission from Shear-Induced Nematic Phase Upconversion Nanorods".NANO LETTERS 20.6(2020):4204-4210.