Photoluminescence of Cr3+ in nanostructured Al2O3 synthesized by evaporation using a continuous wave CO2 laser

被引：21

作者：

Kostyukov, Anton ^{[1
]}

Baronskiy, Mark ^{[1
]}

Rastorguev, Alexander ^{[1
]}

Snytnikov, Valeriy ^{[1
,2
]}

Snytnikov, Vladimir ^{[1
]}

Zhuzhgov, Aleksey ^{[1
]}

Ishchenko, Arcady ^{[1
]}

机构：

[1] Boreskov Inst Catalysis, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

来源：

RSC ADVANCES | 2016年 / 6卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

LASER-ABLATION; NANOPARTICLES; LUMINESCENCE; RUBY;

D O I：

10.1039/c5ra19455e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Laser evaporation of an Al2O3 target by a continuous wave CO2 laser was used to obtain nanostructured Al2O3 condensates with a mean crystallite size of 6 nm, one nominally pure and another doped with chromium at a concentration of 0.2 wt%. Photoluminescence of Cr3+ was observed in all the samples of the Al2O3 condensate. In all the Al2O3 condensates the alpha-Al2O3 phase, undetectable by XRD and HRTEM, was revealed by Cr3+ probing. Photoluminescence studies with the use of Cr3+ as a probe also revealed the theta- and (gamma + delta)-crystal phases of Al2O3; this finding was supported by XRD and HRTEM data.

引用

页码：2072 / 2078

页数：7

共 50 条

[21] Doubly resonant Raman electron paramagnetic transitions of Cr3+ in ruby (Al2O3:Cr3+)
Lu, X.
Venugopalan, S.
Kim, Hyunjung
Grimsditch, M.
Rodriguez, S.
Ramdas, A. K.
PHYSICAL REVIEW B, 2009, 79 (23):
[22] Preparation, structural and spectroscopic study of sol-gel-synthesized Cr3+:Al2O3 powder
Capeloto, Otavio A.
de Souza, Nivaldo E.
Santos, Ivair A.
Astrath, Nelson G. C.
Miranda, Isabella T. P.
Pilatti, Luiz A.
Hechenleitner, Ana A. W.
Pineda, Edgardo A. G.
de Melo, Mauricio A. C.
SN APPLIED SCIENCES, 2019, 1 (12):
[23] NO reduction with CO on Cu–Cr and Co–Cr oxide catalysts supported on Al2O3 and Al2O3 + SiO2
I. Spassova
N. Velichkova
M. Khristova
V. Georgescu
Reaction Kinetics, Mechanisms and Catalysis, 2010, 101 : 321 - 330
[24] Al2O3:Cr3+ microfibers by hydrothermal route: Luminescence properties
Liu, Dianguang
Zhu, Zhenfeng
Liu, Hui
Zhang, Zhengyang
Zhang, Yanbin
Li, Gege
MATERIALS RESEARCH BULLETIN, 2012, 47 (09) : 2332 - 2335
[25] Ab initio calculation of the CrK edge in α-Al2O3:Cr3+
Gaudry, E.
Cabaret, D.
Sainctavit, Ph.
Brouder, Ch.
Mauri, F.
Rogalev, A.
Goulon, J.
PHYSICA SCRIPTA, 2005, T115 : 191 - 193
[26] Cr3+:Al2O3晶体的助熔剂生长
刘卫国
付林堂
钦明亮
人工晶体学报, 1991, (Z1) : 352 - 352
[27] Corrosion of Al2O3/Cr and Ti2O3/Cr composites in flowing air and CO2 at 750°C
Nguyen, Thuan Dinh
Caccia, Mario
McCormack, Camilla K.
Itskos, Grigorios
Sandhage, Kenneth H.
CORROSION SCIENCE, 2021, 179
[28] Photoluminescence and EPR investigation of combustion Synthesized BaAl2O4:Cr3+
Singh, Vijay
Tiwari, Manoj
Soni, Manish
Aynayas, Mahendra
Hyun, Seok-Hee
Kwak, H. Y.
Natarajan, V.
INDIAN JOURNAL OF PURE & APPLIED PHYSICS, 2009, 47 (06) : 439 - 440
[29] Origin of visible photoluminescence in combustion synthesized α-Al2O3: Photoluminescence and EPR spectroscopy
Raj, Sanu S.
Gupta, Santosh K.
Pathak, N.
Grover, V.
Tyagi, A. K.
ADVANCED POWDER TECHNOLOGY, 2017, 28 (06) : 1505 - 1510
[30] Effect of modifiers on the activity of a Cr2O3/Al2O3 catalyst in the dehydrogenation of ethylbenzene with CO2
Ye, XN
Yue, YH
Miao, CX
Xie, ZK
Hua, WM
Gao, Z
GREEN CHEMISTRY, 2005, 7 (07) : 524 - 528

← 1 2 3 4 5 →