Luminescence of Eu:Y3Al5O12, Eu:Lu3Al5O12, and Eu:GdAlO3 Nanocrystals Synthesized by Solution Combustion

被引：3

作者：

Vilejshikova, E. V. ^{[1
]}

Khort, A. A. ^{[2
]}

Podbolotov, K. B. ^{[2
]}

Loiko, P. A. ^{[3
]}

Shimanski, V. I. ^{[4
]}

Shashkov, S. N. ^{[5
]}

Yumashev, K. V. ^{[1
]}

机构：

[1] Belarusian Natl Tech Univ, Ctr Opt Mat & Technol, 65-17 Nezavisimost Ave, Minsk 220013, BELARUS

[2] Belarusian State Technol Univ, Minsk 220006, BELARUS

[3] ITMO Univ, St Petersburg 197101, Russia

[4] Belarusian State Univ, Minsk 220030, BELARUS

[5] SOL Instruments, Minsk 220005, BELARUS

来源：

JOURNAL OF APPLIED SPECTROSCOPY | 2017年 / 84卷 / 05期

关键词：

nanocrystal; garnet; perovskite; solution combustion synthesis; europium ion; luminescence; Y3AL5O12; PHOSPHOR; YAG; INTENSITIES; GROWTH;

D O I：

10.1007/s10812-017-0557-5

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Nanocrystals of rare-earth garnets Y3Al5O12 and Lu3Al5O12 and perovskite GdAlO3 highly doped (10-20 at%) with Eu3+ are synthesized by the solution combustion technique and subsequent annealing in air at 800 and 1300(o)C. Their structure, morphology, and phase composition are studied. These materials exhibit intense red luminescence under UV excitation. Eu:GdAlO3 luminescence has CIE 1931 color coordinates (0.632, 0.368); dominant wavelength, 599.6 nm; and color purity, > 99%. Judd-Ofelt parameters, luminescence branching ratios, and lifetimes of the Eu3+ 5D0 state are determined. The luminescence quantum yield for Eu:GdAlO3 (10 at%) reaches 74% with a lifetime of 1.4 ms for the D-5(0) state. The synthesized materials are promising for red ceramic phosphors.

引用

页码：866 / 874

页数：9

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