Optical Properties of Plate-Shaped ZnO Nanocrystals Grown by a Facile and Environmentally Friendly Molten Salt Method

Plate-shaped ZnO nanocrystals are prepared by a facile and environmentally friendly molten sMt method, in which ZnD（CO3）2（OH）6 nanorods are first synthesized via a facile one-step, solid-state reaction route at room temperature and then decomposed in NaCI flux. Photoluminescence property demonstrate...

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Bibliographic Details
Published inChinese physics letters Vol. 31; no. 9; pp. 155 - 158
Main Author 王文忠 梁玉洁 施洪龙 张谷令
Format Journal Article
LanguageEnglish
Published 01.09.2014
Subjects
ZnO
光学特性
拉曼散射光谱
板形
熔盐法
环境友好
生长
纳米晶体
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Summary:Plate-shaped ZnO nanocrystals are prepared by a facile and environmentally friendly molten sMt method, in which ZnD（CO3）2（OH）6 nanorods are first synthesized via a facile one-step, solid-state reaction route at room temperature and then decomposed in NaCI flux. Photoluminescence property demonstrates that the as-prepared plate-shaped ZnO nanocrystals exhibit a strong blue emission centered at about 483nm. Raman scattering spectrum reveals that the as-prepared plate-shaped ZnO nanocrystals have the oxygen deficiency, which can be confirmed by the appearance of oxygen-deficiency-related vibrationM mode at 583 cm-1 in the Raman spectrum. The oxygen deficiency existing in the plate-shaped ZnO nanocrystals results in the formation of the oxygen vacancy, which is most likely responsible for the strong blue emission of the plate-shaped ZnO nanocrystals. These new plate-shaped ZnO nanocrystals with strong blue emission are expected to show considerable potential applications in luminescence, lasing and optoelectronic devices.
Bibliography:11-1959/O4
WANG Wen-Zhong, LIANG Yu-Jie, SHI Hong-Long, ZHANG Gu-Ling（ School of Science, Minzu University of China, Beijing 100081）
Plate-shaped ZnO nanocrystals are prepared by a facile and environmentally friendly molten sMt method, in which ZnD（CO3）2（OH）6 nanorods are first synthesized via a facile one-step, solid-state reaction route at room temperature and then decomposed in NaCI flux. Photoluminescence property demonstrates that the as-prepared plate-shaped ZnO nanocrystals exhibit a strong blue emission centered at about 483nm. Raman scattering spectrum reveals that the as-prepared plate-shaped ZnO nanocrystals have the oxygen deficiency, which can be confirmed by the appearance of oxygen-deficiency-related vibrationM mode at 583 cm-1 in the Raman spectrum. The oxygen deficiency existing in the plate-shaped ZnO nanocrystals results in the formation of the oxygen vacancy, which is most likely responsible for the strong blue emission of the plate-shaped ZnO nanocrystals. These new plate-shaped ZnO nanocrystals with strong blue emission are expected to show considerable potential applications in luminescence, lasing and optoelectronic devices.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/9/097802