Synthesis of novel nano-flowers assembled with nano-petals array of stannous oxide

被引：23

作者：

Iqbal, M. Zubair ^{[1
]}

Wang, Fengping ^{[1
]}

Javed, Qurat-ul-ain ^{[1
]}

Rafique, M. Yasir ^{[1
]}

Qiu, Hongmei ^{[1
]}

Nabi, Ghulam ^{[2
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Phys, Sch Appl Sci, Beijing 100083, Peoples R China

[2] Beijing Inst Technol, Res Ctr Mat Sci, Sch Mat Sci & Engn, Beijing 100081, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 75卷

关键词：

Microstructure; Nanocrystalline materials; SnO; Hydrothermal method; Optical properties; THIN-FILMS; SNO; NANOPARTICLES; EVOLUTION; GROWTH;

D O I：

10.1016/j.matlet.2012.01.126

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, stannous oxide (SnO) nano flowers self-assembled with nano petals have been successfully synthesized with template-free hydrothermal growth method by using SnCl2 center dot 2H(2)O and KOH as raw materials. The crystalline phase, morphology, particle sizes and component of the as-prepared materials were characterized by using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM) and energy-dispersive X-ray spectroscopy (EDS). FESEM results had showed that the flower like SnO structure was in the range of 4-7 mu m. The average crystalline size of the tetragonal phase SnO nano-particles was calculated about 22 nm from the full-width at half-maximum of XRD. Furthermore, Ultraviolet-visible-near infrared (UV-vis-NIR) spectrophotometry was used to determine the transmittance behavior of SnO nano structures. Direct optical band gap of 3.13 eV was acquired by Davis-Mott model. Moreover, photoluminescence (PL) emission spectrum of SnO nano-petals at room temperature exhibited a very prominent violet emission at 398 nm that corresponds to direct band emission. (C) 2012 Elsevier RV. All rights reserved.

引用

页码：236 / 239

页数：4