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

doi:10.7517/j.issn.1674-0475.2012.05.384

Abstract

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

CLC Number:

ZHANG Yuan, WU Liang-zhuan, YU Yuan, LI Yu-zhen, ZHI Jin-fang. Low-Temperature Synthesis of MoO₃ Nanobelts Aqueous Sols with High Photoluminescence Properties[J]. Imaging Science and Photochemistry, 2012, (5): 384-389.

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

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