Room temperature chemical synthesis of flower-like ZnO nanostructures

被引：59

作者：

Chakraborty, S. ^{[1
]}

Kole, A. K. ^{[1
]}

Kumbhakar, P. ^{[1
]}

机构：

[1] Natl Inst Technol, Nanosci Lab, Dept Phys, Durgapur 713209, W Bengal, India

来源：

MATERIALS LETTERS | 2012年 / 67卷 / 01期

关键词：

Zinc oxide; Nanoflowers; Room temperature chemical synthesis; Optical properties;

D O I：

10.1016/j.matlet.2011.10.018

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

Flower-like ZnO nanostructures have been successfully synthesized by the simple chemical precipitation method at room temperature in distilled water medium and without using any capping agent. The nanostructure of the sample has been analyzed by using X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM). The XRD pattern confirmed that the sample is of hexagonal phase of ZnO. The UV-visible optical absorption measurement shows the presence of UV absorption at similar to 260 nm in the sample dispersed in water. The room-temperature photoluminescence (PL) spectrum of the sample consists of near-band edge emission at similar to 360 nm as well as a violet emission band due to the presence of defect states in the sample. Also a reasonable growth mechanism is proposed for formation of flower-like ZnO nano-structures. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：362 / 364

页数：3

共 17 条

[1]

Single violet luminescence emitted from ZnO films obtained by oxidation of Zn film on quartz glass [J].