硫化锌纳米带的低温生长及光致发光特性

Low-temperature growth and photoluminescence property of ZnS nanoribbons.

作者信息

Zhang Zengxing, Wang Jianxiong, Yuan Huajun, Gao Yan, Liu Dongfang, Song Li, Xiang Yanjuan, Zhao Xiaowei, Liu Lifeng, Luo Shudong, Dou Xinyuan, Mou Shicheng, Zhou Weiya, Xie Sishen

机构信息

Institute of Physics, Graduate School of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100080, People's Republic of China.

出版信息

J Phys Chem B. 2005 Oct 6;109(39):18352-5. doi: 10.1021/jp052199d.

DOI:10.1021/jp052199d

PMID:16853362

Abstract

At a low temperature of 450 degrees C, ZnS nanoribbons have been synthesized on Si and KCl substrates by a simple chemical vapor deposition (CVD) method with a two-temperature-zone furnace. Zinc and sulfur powders are used as sources in the different temperature zones. X-ray diffraction (XRD), selected area electron diffraction (SEAD), and transmission electron microscopy (TEM) analysis show that the ZnS nanoribbons are the wurtzite structure, and there are two types-single-crystal and bicrystal nanoribbons. Photoluminescence (PL) spectrum shows that the spectrum mainly includes two parts: a purple emission band centering at about 390 nm and a blue emission band centering at about 445 nm with a weak green shoulder around 510 nm.

摘要

在450摄氏度的低温下，通过使用双温区炉的简单化学气相沉积（CVD）方法，在硅和氯化钾衬底上合成了硫化锌纳米带。锌粉和硫粉被用作不同温度区的源材料。X射线衍射（XRD）、选区电子衍射（SEAD）和透射电子显微镜（TEM）分析表明，硫化锌纳米带为纤锌矿结构，并且存在两种类型——单晶和双晶纳米带。光致发光（PL）光谱表明，该光谱主要包括两部分：一个以约390纳米为中心的紫色发射带和一个以约445纳米为中心的蓝色发射带，在510纳米左右有一个较弱的绿色肩部。