Nanosized hexagonal plateletlike ZnO for nanophosphor applications

Han, Gui; Shibukawa, Atsushi; Okada, Morihiro; Neo, Yoichiro; Aoki, Toru; Mimura, Hidenori

doi:doi:10.1116/1.3292573

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Journal of Vacuum Science & Technology B / Volume 28 / Issue 2 / PAPERS FROM THE 22nd INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE / Fabrication

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J. Vac. Sci. Technol. B 28, C2C16 (2010); http://dx.doi.org/10.1116/1.3292573 (4 pages)

Nanosized hexagonal plateletlike ZnO for nanophosphor applications

Gui Han, Atsushi Shibukawa, Morihiro Okada, Yoichiro Neo, Toru Aoki, and Hidenori Mimura

Research Institute of Electronics, Shizuoka University, 3-5-1, Johoku, Naka-ku, Hamamatsu 432-8011, Japan

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(Published online 30 March 2010)

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ZnO hexagonal plateletlike materials have been synthesized by reacting of hexamethylenetetramine in an aqueous solution of Zn²⁺ in the presence of sodium bis (2-ethylhexyl) sulfosuccinate emulsions as a structure-directing agent. The authors used a variety of analytical techniques, such as scanning electron microscopy, transmission electron microscopy, and x-ray diffraction to show that this synthesis method yields ZnO nanocrystals with a well-defined morphology. By changing the synthesis conditions, crystal size could also be controlled, for example, both micron- and nanometer-sized crystals were fabricated. Photoluminescence measurements have been carried out at various temperatures under the excitation with a cw He–Cd laser and a pulsed Nd³⁺:YAG laser. At higher excitation energies, whispering gallery mode emission appears in the spectrum.

ACKNOWLEDGMENTS

This work was supported by the Shizuoka University 21st Center of Excellence (COE) Program and by a Grant in Aid of Scientific research from the Ministry of Education, Culture, Sports, Science and Technology of Japan.

Article Outline

INTRODUCTION
EXPERIMENT
1. Sample preparation
2. Experimental setup
RESULTS AND DISCUSSION
CONCLUSIONS

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KEYWORDS and PACS

Keywords

emulsions, II-VI semiconductors, nanostructured materials, neodymium, organic compounds, phosphors, photoluminescence, scanning electron microscopy, solid lasers, transmission electron microscopy, X-ray diffraction, zinc compounds, ZnO, photoluminescence, whispering gallery mode, stimulated emission

PACS

61.46.-w

Structure of nanoscale materials
78.55.Et

II-VI semiconductors
81.05.Dz

II-VI semiconductors
81.07.Bc

Nanocrystalline materials

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History

Received 28 September 2009
Accepted 21 December 2009
Published online 30 March 2010

Digital Object Identifier

http://dx.doi.org/10.1116/1.3292573

PUBLICATION DATA

ISSN

1071-1023 (print)

1520-8567 (online)

Publisher

American Vacuum Society

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