Time-dependent evolution process of Sb2Te3 from nanoplates to nanorods and their Raman scattering properties

High-quality Sb2Te3 nanostructures are synthesized by a simple hydrothermal method. The morphologies of the nanostructures change from hexagonal nanoplates to nanorods with the extension of growth time. Secondary nucleation is the dominant factor responsible for the change of the morphologies. Struc...

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Published in中国物理B：英文版 no. 10; pp. 342 - 344
Main Author 孟秀清 汤宁 钟绵增 叶慧群 方允樟
Format Journal Article
LanguageEnglish
Published 01.10.2016
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ISSN1674-1056
2058-3834
DOI10.1088/1674-1056/25/10/107105

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Summary:High-quality Sb2Te3 nanostructures are synthesized by a simple hydrothermal method. The morphologies of the nanostructures change from hexagonal nanoplates to nanorods with the extension of growth time. Secondary nucleation is the dominant factor responsible for the change of the morphologies. Structural analyses indicate that all the obtained nanostructures are well crystallized. IR-active phonons are mainly observed in the Raman spectra of the nanoplates and nanorods. The slight deviations are observed in the Raman modes between the nanoplates and nanorods, which could originate from confinement effect in the nanostructures.
Bibliography:Xiu-Qing Meng;Ning Tang;Mian-Zeng Zhong;Hui-Qun Ye;Yun-Zhang Fang;Zhejiang Provincial Key Laboratory of Solid State Optoelectronic Devices, Zhejiang Normal University;State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences
11-5639/O4
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/25/10/107105