Luminescent Properties of Al2O3:Tb3+ Nanoparticles Obtained by cw CO2 Laser Vaporization | Sciact - CRIS-system of Boreskov Institute of Catalysis

Luminescent Properties of Al2O3:Tb3+ Nanoparticles Obtained by cw CO2 Laser Vaporization Full article

Journal

Optical Materials
ISSN: 0925-3467

Output data

Year: 2020, Volume: 110, Article number : 110508, Pages count : 6 DOI: 10.1016/j.optmat.2020.110508

Tags

Al2O3:Tb3+ nanoparticles; Nanophosphor; Laser vaporization; CO2 laser; Luminescence

Authors

Kostyukov Anton I. ¹ , Snytnikov Vladimir N. ² , Rakhmanova Marianna I. ^1,3 , Kostyukova Nadezhda Y. ^1,4,5 , Snytnikov Valeriy N. ^1,2

Affiliations

1	Novosibirsk State University, Pirogova Str. 2, 630090, Novosibirsk, Russia
2	Boreskov Institute of Catalysis SB RAS, 5 Lavrentiev Ave., 630090, Novosibirsk, Russia
3	Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Lavrentiev Ave., 630090, Novosibirsk, Russia
4	Institute of Laser Physics SB RAS, 15b Lavrentiev Ave., 630090, Novosibirsk, Russia
5	Novosibirsk State Technical University, 20 K. Marx Ave., 630073, Novosibirsk, Russia

Funding (1)

Russian Foundation for Basic Research

19-32-60027 (АААА-А19-119110590010-0)

The synthesis of Al2O3:Tb3+ (0.019–0.62 mol%) nanoparticles by laser vaporization of α-Al2O3:Tb3+ ceramic targets using a cw CO2 laser in flowing helium at a pressure of 0.1 bar is reported. HRTEM, XRD and BET studies revealed that under the indicated conditions the produced Al2O3:Tb3+ nanoparticles have faceted and nearly a spherical shape with the average size below 10 nm. As shown by XRD, the phase composition of the synthesized nanoparticles is represented mostly by the low-temperature γ-Al2O3. Photoluminescence (PL) spectra were obtained for Tb3+ ions in γ-Al2O3 nanoparticles upon excitation to the 4f8 → 4f75d (λex = 230 nm), 7F6 → 5H7 (λex = 315 nm) and 5D3 → 7F3 (λex = 458 nm) transitions, and PL excitation spectra – for the most intense 5D4 → 7F5 (λmax = 543 nm) transition. The lifetime of the excited 5D4 state was found to be ca. 2.9 ms. The obtained values of the chromaticity coordinate and absolute quantum yield were (0.299, 0.509) and 12.6% at λex = 315 nm, respectively.

Kostyukov A.I. , Snytnikov V.N. , Rakhmanova M.I. , Kostyukova N.Y. , Snytnikov V.N.
Luminescent Properties of Al2O3:Tb3+ Nanoparticles Obtained by cw CO2 Laser Vaporization
Optical Materials. 2020. V.110. 110508 :1-6. DOI: 10.1016/j.optmat.2020.110508 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Jul 24, 2020
Accepted:	Oct 6, 2020
Published online:	Oct 8, 2020
Published print:	Dec 1, 2020

Web of science:	WOS:000602386800005
Scopus:	2-s2.0-85092284374
Elibrary:	45265700
Chemical Abstracts:	2020:2125691
Chemical Abstracts (print):	174:322675
OpenAlex:	W3092308224

DB	Citing
Scopus	8
Web of science	6
Elibrary	6
OpenAlex	8