中国物理B ›› 2016, Vol. 25 ›› Issue (10): 107105-107105.doi: 10.1088/1674-1056/25/10/107105

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

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

Xiu-Qing Meng(孟秀清), Ning Tang(汤宁), Mian-Zeng Zhong(钟绵增), Hui-Qun Ye(叶慧群), Yun-Zhang Fang(方允樟)   

  1. 1. Zhejiang Provincial Key Laboratory of Solid State Optoelectronic Devices, Zhejiang Normal University, Jinhua 321004, China;
    2. State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
  • 收稿日期:2016-03-14 修回日期:2016-05-03 出版日期:2016-10-05 发布日期:2016-10-05
  • 通讯作者: Xiu-Qing Meng, Yun-Zhang Fang E-mail:xqmeng@semi.ac.cn;fyz@zjnu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11104250 and 61274099), the Fund from the Science Technology Department of Zhejiang Province, China (Grant No. 2012C21007), and the Fund for the Zhejiang Provincial Innovation Team, China (Grant No. 2011R50012).

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

Xiu-Qing Meng(孟秀清)1, Ning Tang(汤宁)1, Mian-Zeng Zhong(钟绵增)2, Hui-Qun Ye(叶慧群)1, Yun-Zhang Fang(方允樟)1   

  1. 1. Zhejiang Provincial Key Laboratory of Solid State Optoelectronic Devices, Zhejiang Normal University, Jinhua 321004, China;
    2. State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
  • Received:2016-03-14 Revised:2016-05-03 Online:2016-10-05 Published:2016-10-05
  • Contact: Xiu-Qing Meng, Yun-Zhang Fang E-mail:xqmeng@semi.ac.cn;fyz@zjnu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11104250 and 61274099), the Fund from the Science Technology Department of Zhejiang Province, China (Grant No. 2012C21007), and the Fund for the Zhejiang Provincial Innovation Team, China (Grant No. 2011R50012).

摘要: 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.

关键词: Sb2Te3 nanostructures, evolution process, confinement effect

Abstract: 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.

Key words: Sb2Te3 nanostructures, evolution process, confinement effect

中图分类号:  (Semiconductor compounds)

  • 71.20.Nr
74.25.Gz (Optical properties) 74.25.Kc (Phonons)