Photoluminescent neodymium-doped ZnO nanocrystals prepared by laser ablation in solution for NIR-II fluorescence bioimaging

被引：7

作者：

Tarasenka, Natalie ^{[1
]}

Kornev, Vladislav ^{[1
]}

Ramanenka, Andrei ^{[1
]}

Li, Ruibin ^{[2
]}

Tarasenko, Nikolai ^{[1
]}

机构：

[1] Natl Acad Sci Belarus, BI Stepanov Inst Phys, Minsk 220072, BELARUS

[2] Soochow Univ Suzhou, Sch Radiat Med & Interdisciplinary Sci, State Key Lab Radiat Med & Protect, Jiangsu 215123, Peoples R China

来源：

HELIYON | 2022年 / 8卷 / 06期

关键词：

Zinc oxide nanoparticles; Doped nanocrystals; Laser ablation in liquids; NIR-II photoluminescence; ASSISTED SYNTHESIS; OPTICAL-PROPERTIES; NANOPARTICLES; LUMINESCENCE; FILMS; ND3+; CONVERSION; NANORODS; IONS;

D O I：

10.1016/j.heliyon.2022.e09554

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The work reports on the use of laser ablation and post-ablation irradiation techniques for the preparation Nd3+ doped ZnO nanoparticles (NPs). The focus has been made on photoluminescence of Nd-doped ZnO NPs in the second near infrared (NIR-II) spectral window (1000-1700 nm) of the biological transparency. Morphology, phase composition and optical properties of the synthesized NPs were studied by absorption and photoluminescence spectroscopy, X-Ray diffraction (XRD) and transmission (TEM) electron microscopy. Near-infrared luminescence of Nd3+ doped ZnO nanocrystals in the region of 1000-1400 nm was detected both upon excitation from the ground state (800 nm) and upon UV excitation. The latter proves the incorporation of the Nd3+ into ZnO lattice as photoluminescence occurs through the transfer of excitation energy from the ZnO matrix to the Nd3+ ion. The possibility of control over the luminescence properties by a variation of solvent composition and by additional laser irradiation was demonstrated.

引用

页数：10