Acta Phys. -Chim. Sin. ›› 2012, Vol. 28 ›› Issue (10): 2500-2506.doi: 10.3866/PKU.WHXB201209113


Bifilar Helix-Like Nanobelt of Single Crystalline Zn2SnO4 Fabricated by Aluminothermal Reaction Approach

WANG Yu1, CHEN Jing1, LIAO Qing2, SUN Wei1, LI Jianlong1, ZHANG Jianping3, WU Kai1   

  1. 1 Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China;
    2 Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R.China;
    3 Department of Chemistry, ReminUnversity of China, Beijing 100872, P. R.China
  • Received:2012-08-28 Revised:2012-09-10 Published:2012-09-26
  • Supported by:

    The project was supported by the NationalNatural Science Foundation of China (20827002, 20911130229) and National Key Basic Research Program of China (973) (2009CB929403, 2011CB808702).


This paper reports the preparation in large quantity of bifilar helix-like nanobelts of single crystalline Zn2SnO4, a face-centered cubic spinel and transparent semiconductor that possesses wide applications in photovoltaic devices and sensors for humidity and combustible gases, by using a unique approach that combines chemical vapor deposition, aluminothermal reaction, vapor-liquid-solid growth, mergence of polar planes, and kinetic control by steady-state turbulent flow. The bifilar helix-like nanobelt was formed by the twisting and merging of two independent Zn2SnO4 nanobelts, as analyzed by scanning electron microscopy, transmission electron microscopy, electron diffraction, X-ray diffraction, Raman spectroscopy, and photoluminescence. It had a periodicity along the axial direction and hence, is actually a super-lattice material. The photoluminescence measurements showed a strong light emission at 326.1 nm from the as-prepared sample with a line width of about 1.5 nm. The combined approach used in this study, in particular its aluminothermal reaction and steady-state turbulent gas flow perturbation steps, may be helpful in preparing other similar materials.

Key words: Bifilar helix-like nanobelt, Zn2SnO4, Aluminothermal reaction approach, Photoluminescence


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