影像科学与光化学 ›› 2012, Vol. ›› Issue (5): 384-389.DOI: 10.7517/j.issn.1674-0475.2012.05.384

• 研究简报 • 上一篇    下一篇

低温制备具有强荧光性能三氧化钼纳米带水溶胶

张源1,2, 吴良专1, 余愿1, 李豫珍1, 只金芳1   

  1. 1. 中国科学院 理化技术研究所 光化学转换与功能材料重点实验室, 北京 100190;
    2. 中国科学院 研究生院, 北京 100049
  • 收稿日期:2012-02-21 修回日期:2012-03-08 出版日期:2012-09-15 发布日期:2012-05-25
  • 通讯作者: 只金芳,E-mail:zhi-mail@mail.ipc.ac.cn,Tel:010-82543537.
  • 基金资助:
    国家自然科学基金项目(20903111).

Low-Temperature Synthesis of MoO3 Nanobelts Aqueous Sols with High Photoluminescence Properties

ZHANG Yuan1,2, WU Liang-zhuan1, YU Yuan1, LI Yu-zhen1, ZHI Jin-fang1   

  1. 1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China
  • Received:2012-02-21 Revised:2012-03-08 Online:2012-09-15 Published:2012-05-25

摘要: 通过过氧化途径,在低温(100℃)且不使用模板和有机溶剂的条件下,成功制备了具有良好荧光性能的三氧化钼(MoO3)纳米带水溶胶.利用X射线衍射仪(XRD)、透射电子显微镜(TEM)、高分辨透射电子显微镜(HRTEM)、荧光光谱仪、荧光显微镜等表征手段对所制备溶胶的结构及性能进行了表征.结果显示,溶胶是由长度约为100 μm,宽度为50 nm到100 nm,厚度小于10 nm的MoO3纳米带组成.所制备的溶胶烘干后可以得到大面积的MoO3纳米带薄膜,薄膜具有很好的韧性.荧光光谱图及荧光显微镜照片显示,纳米带溶胶及干燥后所得到的自支撑(free standing)纳米带薄膜均具有良好的荧光性能,表明其在光学成像、传感及LED等方面具有很好的应用前景.

关键词: 三氧化钼, 溶胶, 纳米带, 薄膜, 荧光

Abstract: Colloidal molybdenum trioxide(MoO3) nanobelts aqueous sols with high photoluminescence performance were successfully synthesized at low temperature (100℃) without assistance of any organics and templates. X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM),Fluorescence spectrameter and Fluorescence Microscope were used to characterize the structures and the properties of the as-prepared MoO3 sols. The results revealed that the MoO3 aqueous sol prepared is composed of a large number of colloidal MoO3 nanobelts. The length of the nanobelts is about 100 μm, while the width is about 50-100 nm and the thickness is less than 10 nm. Large area free-standing MoO3 nanobelts film with good toughness were obtained when the colloidal sols was dried.Its fluorescence properties were characterized by Fluorescence Microscope. The as-prepared MoO3 nanobelts sols and free-standing MoO3 nanobelts film both display high photoluminescence performance, which indicates their potential uses in fluorescence imaging, sensing and LED.

Key words: molybdenum trioxide, sols, nanobelts, thin-film, photoluminescence

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