Hydrothermal growth and optical properties of doughnut-shaped ZnO microparticles

被引：241

作者：

Liang, JB ^{[1
]}

Liu, JW ^{[1
]}

Xie, Q ^{[1
]}

Bai, S ^{[1
]}

Yu, WC ^{[1
]}

Qian, YT ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Chem, Hefei Natl Lab Phys Sci Microscale, Anhua 230026, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 19期

关键词：

D O I：

10.1021/jp050485j

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Doughnut-shaped ZnO microparticles have been grown through a hydrothermal reaction in citrate solution at 120 degrees C. FESEM reveals that these microparticles consist of regular arranged nanoplates, and there is a concave on the surface of each microparticle. The existence of citrate is vital to the formation of the complex microparticles. Room temperature photoluminescence measurements show strong UV band emission. The yellow and green emissions related to the structure defects can be barely observed, indicating the high crystalline perfection of these microparticles.

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页码：9463 / 9467

页数：5

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