| Autor: |
Peter, Anita Mary, Manikandan, Ramya, Madanan, Kailasnath |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2023, Vol. 2783 Issue 1, p1-5, 5p |
| Abstrakt: |
Cerium Phosphate (CePO4) finds widespread applications in luminescent devices, sensors, biological labels, optoelectronics etc. CePO4 can also act as a useful host matrix for other lanthanides to produce phosphors that emit in visible wavelengths. Cerium Phosphate nanoparticles show different morphologies like nanosphere, nanorod, nanowire, nanocolumn, nanospindle etc. One dimensional CePO4 nanowires were successfully synthesized by a hydrothermal synthesis procedure at 200°C for 19 hours using Cerium Nitrate Hexahydrate (Ce (NO3)3.6H2O) and Diammonium Hydrogen Phosphate ((NH4)2HPO4) as the precursors without the addition of any surfactants. Phase and morphologies of the as synthesized CePO4 nanowires were characterized using X-ray Powder Diffraction (XRD) along with Transmission Electron Microscopy (TEM) analysis and proved to be pure monoclinic CePO4 nanowires. The UV-visible absorption and photoluminescence (PL) characteristics were used to study the optical properties of the CePO4 nanowires. The CePO4 nanowires when excited at a wavelength of 260nm shows a slightly broad emission between 300 and 400 nm with a peak at around 330nm, which corresponds to the 5d-4f transitions of the Ce3+ ions. The Nonlinear optical properties were investigated by an open aperture Z-scan technique by using Q switched Nd-YAG laser at 532nm. The Z-scan results showed that the colloidal solution of the synthesized nanowires demonstrates reverse saturable absorption property. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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