Photoluminescence emission at room temperature in zinc oxide nano-columns

被引：11

作者：

Rocha, L. S. R. ^{[1
]}

Deus, R. C. ^{[1
]}

Foschini, C. R. ^{[3
]}

Moura, F. ^{[2
]}

Garcia, F. Gonzalez ^{[2
]}

Simoes, A. Z. ^{[1
]}

机构：

[1] Univ Estadual Paulista, UNESP, Fac Engn Guaratingueta, BR-12516410 Guaratingueta, SP, Brazil

[2] Univ Fed Itajuba Unifei, BR-3590037 Itabira, MG, Brazil

[3] Univ Estadual Paulista, UNESP, Inst Quim, Lab Interdisciplinar Ceram LIEC, BR-1480090 Araraquara, SP, Brazil

来源：

MATERIALS RESEARCH BULLETIN | 2014年 / 50卷

基金：

巴西圣保罗研究基金会;

关键词：

Nanostructures; Chemical synthesis; Electron microscopy; Luminescence; Crystal structure; MICROWAVE HYDROTHERMAL SYNTHESIS; ZNO MICRO; PH; GROWTH; NANOCRYSTALS; MORPHOLOGY; FILM;

D O I：

10.1016/j.materresbull.2013.09.049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hydrothermal microwave method (HTMW) was used to synthesize crystalline zinc oxide (ZnO) nano-columns at the temperature of 120 degrees C with a soaking time of 8 min. ZnO nano-columns were characterized by using X-ray analyses (XRD), infrared spectroscopy (FT-IR), thermogravimetric analyses (TG-DTA), field emission gun and transmission electron microscopy (FEG-SEM and TEM) and photoluminescence properties (PL). XRD results indicated that the ZnO nano-columns are free of any impurity phase and crystallize in the hexagonal structure. Typical FT-IR spectra for ZnO nano-columns presented well defined bands, indicating a substantial short-range order in the system. PL spectra consist of a broad band at 590 nm and narrow band at 480 nm corresponding to a near-band edge emission related to the recombination of excitons and level emission related to structural defects. These results show that the HTMW synthesis route is rapid, cost effective, and could be used as an alternative to obtain ZnO nano-columns in the temperature of 120 degrees C for 8 min. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：12 / 17

页数：6

共 38 条

[1] Effect of pH on ZnO nanoparticle properties synthesized by sol-gel centrifugation [J].

Alias, S. S. ;

Ismail, A. B. ;

Mohamad, A. A. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 499 (02) :231-237

[2] A Critical Assessment of the Specific Role of Microwave Irradiation in the Synthesis of ZnO Micro- and Nanostructured Materials [J].

Baghbanzadeh, Mostafa ;

Skapin, Sreco D. ;

Orel, Zorica Crnjak ;

Kappe, C. Oliver .

CHEMISTRY-A EUROPEAN JOURNAL, 2012, 18 (18) :5724-5731

[3] Microwave chemistry for inorganic nanomaterials synthesis [J].

Bilecka, Idalia ;

Niederberger, Markus .

NANOSCALE, 2010, 2 (08) :1358-1374

[4] MICROWAVE HYDROTHERMAL SYNTHESIS AND CHARACTERIZATION OF ZnO NANOSHEETS [J].

Boudjadar, S. ;

Achour, S. ;

Boukhenoufa, N. ;

Guerbous, L. .

INTERNATIONAL JOURNAL OF NANOSCIENCE, 2010, 9 (06) :585-590

[5] Structural and optical properties of ZnO nanoparticles synthesized at different pH values [J].

Chand, Prakash ;

Gaur, Anurag ;

Kumar, Ashavani .

JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 539 :174-178

[6] ZnO architectures synthesized by a microwave-assisted hydrothermal method and their photoluminescence properties [J].

de Moura, A. P. ;

Lima, R. C. ;

Moreira, M. L. ;

Volanti, D. P. ;

Espinosa, J. W. M. ;

Orlandi, M. O. ;

Pizani, P. S. ;

Varela, J. A. ;

Longo, E. .

SOLID STATE IONICS, 2010, 181 (15-16) :775-780

[7] Development of gas sensors using ZnO nanostructures [J].

Gupta, S. K. ;

Joshi, Aditee ;

Kaur, Manmeet .

JOURNAL OF CHEMICAL SCIENCES, 2010, 122 (01) :57-62

[8] Surface optical phonons in ZnO(Co) nanoparticles: Raman study [J].

Hadzic, B. ;

Romcevic, N. ;

Romcevic, M. ;

Kuryliszyn-Kudelska, I. ;

Dobrowolski, W. ;

Trajic, J. ;

Timotijevic, D. ;

Narkiewicz, U. ;

Sibera, D. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 540 :49-56

[9] Facile microwave hydrothermal synthesis of zinc oxide one-dimensional nanostructure with three-dimensional morphology [J].

Huang, Jianfeng ;

Xia, Changkui ;

Cao, Liyun ;

Zeng, Xierong .

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2008, 150 (03) :187-193

[10] Microwave-assisted synthesis of hexagonal structure ZnO micro-tubes [J].

Jiang, Qiuping ;

Liu, Yongju ;

Kan, Huen ;

Yuan, Bo ;

Zhao, Heyun .

MATERIALS LETTERS, 2012, 81 :198-201

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