A Facile Synthesis and Optical Properties of Bundle-Shaped TbPO₄·H₂O Nanorods

Abstract

Bundle-shaped TbPO 4 ⋅H 2 O nanorods have been prepared by a facile hydrothermal technique and characterized by XRD, SEM, TEM, UV-Vis diffuse reflectance spectrum (DRS), photoluminescence (PL) spectrum, and lifetime. The results indicate that the obtained sample has hexagonal structure of TbPO 4 ⋅H 2 O and is composed of nanorods bundles which is assembled from many single crystalline nanorods with the diameter of around 45 nm and the length of 2.3 m. The growth of the single crystalline nanorod is along the (001) plane direction. Under the UV light irradiation, TbPO 4 ⋅H 2 O nanorods bundles exhibit bright green emission corresponding to the 5 D 4 → 7 F ( = 6, 5, 4, 3) transitions of the Tb 3+ ions, and the lifetime is determined to be about 0.24 ms.

Folic Acid-Conjugated Silica-Modified TbPO4·H2O Nanorods for Biomedical Applications

“…Rare earth containing luminescent nanophosphors with many advantages such as high stability, strong luminescence, noncomplex fabrication, easy surface functionalization, and friendly to environment and human body have been very promising materials for healthcare application, especially for biomedical fluorescence labeling [1][2][3][4][5][6][7][8][9][10]. Recently, the development of rare earth containing luminescent nanorods for application in biomedicine is attracted topic for scientists in materials science field [11][12][13][14][15]. According to some previous studies, compared with nanospheres, nanorods could have a short coherent time in the interband transitions.…”

Short Time and Low Temperature Reaction between Metal Oxides through Microwave-Assisted Hydrothermal Method

“…Microwave-assisted hydrothermal method combines the advantages of fast heating and high-pressure reaction. Hydrothermal processes can promote the formation of crystalline products at temperatures much lower than those required in conventional synthesis [6][7][8]. The combination of microwave heating and hydrothermal environment typically enhances the kinetics of reactions by 1-2 orders of magnitude, saving time and energy [9][10][11].…”